octave-nkf: liboctave/Array.cc annotate

annotate liboctave/Array.cc @ 9878:ead4f9c82a9a

implement Array<T>::nnz

author	Jaroslav Hajek <highegg@gmail.com>
date	Fri, 27 Nov 2009 09:10:21 +0100
parents	c0b54271904b
children	cddd5c3d5f04

rev	line source
1993 1b57120c997b [project @ 1996-03-03 01:16:15 by jwe] jwe parents: 1989 diff changeset	1 // Template array classes
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	2 /*
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	3
8920 eb63fbe60fab update copyright notices John W. Eaton <jwe@octave.org> parents: 8814 diff changeset	4 Copyright (C) 2008, 2009 Jaroslav Hajek
7017 a1dbe9d80eee [project @ 2007-10-12 21:27:11 by jwe] jwe parents: 7016 diff changeset	5 Copyright (C) 1993, 1994, 1995, 1996, 1997, 2000, 2002, 2003, 2004,
a1dbe9d80eee [project @ 2007-10-12 21:27:11 by jwe] jwe parents: 7016 diff changeset	6 2005, 2006, 2007 John W. Eaton
9601 a9b37bae1802 add a couple of missing copyright statements Jaroslav Hajek <highegg@gmail.com> parents: 9556 diff changeset	7 Copyright (C) 2009 VZLU Prague
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	8
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	9 This file is part of Octave.
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	10
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	11 Octave is free software; you can redistribute it and/or modify it
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	12 under the terms of the GNU General Public License as published by the
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6922 diff changeset	13 Free Software Foundation; either version 3 of the License, or (at your
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6922 diff changeset	14 option) any later version.
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	15
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	16 Octave is distributed in the hope that it will be useful, but WITHOUT
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	17 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	18 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	19 for more details.
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	20
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	21 You should have received a copy of the GNU General Public License
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6922 diff changeset	22 along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6922 diff changeset	23 <http://www.gnu.org/licenses/>.
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	24
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	25 */
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	26
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	27 #ifdef HAVE_CONFIG_H
1192 b6360f2d4fa6 [project @ 1995-03-30 21:38:35 by jwe] jwe parents: 1011 diff changeset	28 #include <config.h>
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	29 #endif
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	30
1367 9f9131a8d706 [project @ 1995-09-06 00:07:03 by jwe] jwe parents: 1360 diff changeset	31 #include <cassert>
4518 382cb0ed8c14 [project @ 2003-09-20 18:08:40 by jwe] jwe parents: 4517 diff changeset	32 #include <climits>
449 3cef0ce5dd7d [project @ 1994-06-05 21:58:52 by jwe] jwe parents: 386 diff changeset	33
3503 d14c483b3c12 [project @ 2000-02-01 04:06:07 by jwe] jwe parents: 2847 diff changeset	34 #include <iostream>
5765 7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe] jwe parents: 5632 diff changeset	35 #include <sstream>
5607 4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe] jwe parents: 5535 diff changeset	36 #include <vector>
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	37 #include <algorithm>
6674 e236f1b0a221 [project @ 2007-05-31 18:19:01 by jwe] jwe parents: 6553 diff changeset	38 #include <new>
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1550 diff changeset	39
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	40 #include "Array.h"
4588 19bfd295f400 [project @ 2003-11-10 17:18:48 by jwe] jwe parents: 4587 diff changeset	41 #include "Array-util.h"
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1550 diff changeset	42 #include "idx-vector.h"
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1550 diff changeset	43 #include "lo-error.h"
8377 25bc2d31e1bf improve OCTAVE_LOCAL_BUFFER Jaroslav Hajek <highegg@gmail.com> parents: 8333 diff changeset	44 #include "oct-locbuf.h"
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1550 diff changeset	45
1360 7eb93d12654c [project @ 1995-09-05 21:51:54 by jwe] jwe parents: 1321 diff changeset	46 // One dimensional array class. Handles the reference counting for
7eb93d12654c [project @ 1995-09-05 21:51:54 by jwe] jwe parents: 1321 diff changeset	47 // all the derived classes.
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	48
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	49 template <class T>
4834 8f669cc5a901 [project @ 2004-03-11 18:49:17 by jwe] jwe parents: 4832 diff changeset	50 Array<T>::Array (const Array<T>& a, const dim_vector& dv)
8523 ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	51 : rep (a.rep), dimensions (dv),
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	52 slice_data (a.slice_data), slice_len (a.slice_len)
4834 8f669cc5a901 [project @ 2004-03-11 18:49:17 by jwe] jwe parents: 4832 diff changeset	53 {
9731 7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	54 if (dv.numel () != a.numel ())
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	55 {
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	56 std::string dimensions_str = dimensions.str ();
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	57 std::string new_dims_str = dv.str ();
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	58
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	59 (*current_liboctave_error_handler)
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	60 ("reshape: can't reshape %s array to %s array",
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	61 dimensions_str.c_str (), new_dims_str.c_str ());
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	62 }
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	63
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	64 // This goes here because if an exception is thrown by the above,
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	65 // destructor will be never called.
4834 8f669cc5a901 [project @ 2004-03-11 18:49:17 by jwe] jwe parents: 4832 diff changeset	66 rep->count++;
8f669cc5a901 [project @ 2004-03-11 18:49:17 by jwe] jwe parents: 4832 diff changeset	67 }
8f669cc5a901 [project @ 2004-03-11 18:49:17 by jwe] jwe parents: 4832 diff changeset	68
8f669cc5a901 [project @ 2004-03-11 18:49:17 by jwe] jwe parents: 4832 diff changeset	69 template <class T>
8524 937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	70 void
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	71 Array<T>::fill (const T& val)
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	72 {
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	73 if (rep->count > 1)
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	74 {
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	75 --rep->count;
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	76 rep = new ArrayRep (length (), val);
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	77 slice_data = rep->data;
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	78 }
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	79 else
9780 6dafc60dde31 rename oct-mem functions Jaroslav Hajek <highegg@gmail.com> parents: 9773 diff changeset	80 fill_or_memset (slice_len, val, slice_data);
8524 937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	81 }
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	82
937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	83 template <class T>
9546 1beb23d2b892 optimize op= in common cases Jaroslav Hajek <highegg@gmail.com> parents: 9507 diff changeset	84 void
1beb23d2b892 optimize op= in common cases Jaroslav Hajek <highegg@gmail.com> parents: 9507 diff changeset	85 Array<T>::clear (void)
1beb23d2b892 optimize op= in common cases Jaroslav Hajek <highegg@gmail.com> parents: 9507 diff changeset	86 {
1beb23d2b892 optimize op= in common cases Jaroslav Hajek <highegg@gmail.com> parents: 9507 diff changeset	87 if (--rep->count <= 0)
1beb23d2b892 optimize op= in common cases Jaroslav Hajek <highegg@gmail.com> parents: 9507 diff changeset	88 delete rep;
1beb23d2b892 optimize op= in common cases Jaroslav Hajek <highegg@gmail.com> parents: 9507 diff changeset	89
1beb23d2b892 optimize op= in common cases Jaroslav Hajek <highegg@gmail.com> parents: 9507 diff changeset	90 rep = nil_rep ();
1beb23d2b892 optimize op= in common cases Jaroslav Hajek <highegg@gmail.com> parents: 9507 diff changeset	91 rep->count++;
1beb23d2b892 optimize op= in common cases Jaroslav Hajek <highegg@gmail.com> parents: 9507 diff changeset	92 slice_data = rep->data;
1beb23d2b892 optimize op= in common cases Jaroslav Hajek <highegg@gmail.com> parents: 9507 diff changeset	93 slice_len = rep->len;
1beb23d2b892 optimize op= in common cases Jaroslav Hajek <highegg@gmail.com> parents: 9507 diff changeset	94
1beb23d2b892 optimize op= in common cases Jaroslav Hajek <highegg@gmail.com> parents: 9507 diff changeset	95 dimensions = dim_vector ();
1beb23d2b892 optimize op= in common cases Jaroslav Hajek <highegg@gmail.com> parents: 9507 diff changeset	96 }
1beb23d2b892 optimize op= in common cases Jaroslav Hajek <highegg@gmail.com> parents: 9507 diff changeset	97
1beb23d2b892 optimize op= in common cases Jaroslav Hajek <highegg@gmail.com> parents: 9507 diff changeset	98 template <class T>
9624 3fc7272937ce implement Array<T>::clear overloads Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	99 void
3fc7272937ce implement Array<T>::clear overloads Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	100 Array<T>::clear (const dim_vector& dv)
3fc7272937ce implement Array<T>::clear overloads Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	101 {
3fc7272937ce implement Array<T>::clear overloads Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	102 if (--rep->count <= 0)
3fc7272937ce implement Array<T>::clear overloads Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	103 delete rep;
3fc7272937ce implement Array<T>::clear overloads Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	104
9840 c0b54271904b improve safe numel() calculation for arrays Jaroslav Hajek <highegg@gmail.com> parents: 9839 diff changeset	105 rep = new ArrayRep (dv.safe_numel ());
9624 3fc7272937ce implement Array<T>::clear overloads Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	106 slice_data = rep->data;
3fc7272937ce implement Array<T>::clear overloads Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	107 slice_len = rep->len;
3fc7272937ce implement Array<T>::clear overloads Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	108
3fc7272937ce implement Array<T>::clear overloads Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	109 dimensions = dv;
3fc7272937ce implement Array<T>::clear overloads Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	110 }
3fc7272937ce implement Array<T>::clear overloads Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	111
3fc7272937ce implement Array<T>::clear overloads Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	112 template <class T>
4532 01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	113 Array<T>
01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	114 Array<T>::squeeze (void) const
01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	115 {
01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	116 Array<T> retval = *this;
01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	117
4929 585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	118 if (ndims () > 2)
4532 01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	119 {
4929 585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	120 bool dims_changed = false;
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	121
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	122 dim_vector new_dimensions = dimensions;
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	123
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	124 int k = 0;
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	125
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	126 for (int i = 0; i < ndims (); i++)
4759 364bbf35dbfa [project @ 2004-02-15 00:08:06 by jwe] jwe parents: 4757 diff changeset	127 {
4929 585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	128 if (dimensions(i) == 1)
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	129 dims_changed = true;
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	130 else
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	131 new_dimensions(k++) = dimensions(i);
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	132 }
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	133
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	134 if (dims_changed)
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	135 {
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	136 switch (k)
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	137 {
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	138 case 0:
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	139 new_dimensions = dim_vector (1, 1);
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	140 break;
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	141
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	142 case 1:
4759 364bbf35dbfa [project @ 2004-02-15 00:08:06 by jwe] jwe parents: 4757 diff changeset	143 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	144 octave_idx_type tmp = new_dimensions(0);
4929 585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	145
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	146 new_dimensions.resize (2);
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	147
4759 364bbf35dbfa [project @ 2004-02-15 00:08:06 by jwe] jwe parents: 4757 diff changeset	148 new_dimensions(0) = tmp;
364bbf35dbfa [project @ 2004-02-15 00:08:06 by jwe] jwe parents: 4757 diff changeset	149 new_dimensions(1) = 1;
364bbf35dbfa [project @ 2004-02-15 00:08:06 by jwe] jwe parents: 4757 diff changeset	150 }
4929 585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	151 break;
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	152
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	153 default:
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	154 new_dimensions.resize (k);
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	155 break;
585e9a8c2ef8 [project @ 2004-08-03 20:45:34 by jwe] jwe parents: 4916 diff changeset	156 }
4759 364bbf35dbfa [project @ 2004-02-15 00:08:06 by jwe] jwe parents: 4757 diff changeset	157 }
4532 01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	158
8524 937921654627 clean up Array and DiagArray2 Jaroslav Hajek <highegg@gmail.com> parents: 8523 diff changeset	159 retval = Array<T> (*this, new_dimensions);
4532 01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	160 }
01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	161
01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	162 return retval;
01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	163 }
01ee68d18069 [project @ 2003-10-10 00:49:54 by jwe] jwe parents: 4530 diff changeset	164
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	165 template <class T>
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	166 octave_idx_type
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	167 Array<T>::compute_index (const Array<octave_idx_type>& ra_idx) const
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	168 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	169 octave_idx_type retval = -1;
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	170
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	171 int n = dimensions.length ();
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	172
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	173 if (n > 0 && n == ra_idx.length ())
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	174 {
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	175 retval = ra_idx(--n);
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	176
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	177 while (--n >= 0)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	178 {
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	179 retval *= dimensions(n);
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	180 retval += ra_idx(n);
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	181 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	182 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	183 else
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	184 (*current_liboctave_error_handler)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	185 ("Array<T>::compute_index: invalid ra_idxing operation");
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	186
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	187 return retval;
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	188 }
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	189
2049 468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe] jwe parents: 2006 diff changeset	190 template <class T>
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe] jwe parents: 2006 diff changeset	191 T
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	192 Array<T>::range_error (const char *fcn, octave_idx_type n) const
2049 468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe] jwe parents: 2006 diff changeset	193 {
2109 356f70c8fcbd [project @ 1996-04-30 12:31:30 by jwe] jwe parents: 2049 diff changeset	194 (*current_liboctave_error_handler) ("%s (%d): range error", fcn, n);
2049 468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe] jwe parents: 2006 diff changeset	195 return T ();
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe] jwe parents: 2006 diff changeset	196 }
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe] jwe parents: 2006 diff changeset	197
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe] jwe parents: 2006 diff changeset	198 template <class T>
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe] jwe parents: 2006 diff changeset	199 T&
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	200 Array<T>::range_error (const char *fcn, octave_idx_type n)
2049 468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe] jwe parents: 2006 diff changeset	201 {
2109 356f70c8fcbd [project @ 1996-04-30 12:31:30 by jwe] jwe parents: 2049 diff changeset	202 (*current_liboctave_error_handler) ("%s (%d): range error", fcn, n);
2049 468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe] jwe parents: 2006 diff changeset	203 static T foo;
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe] jwe parents: 2006 diff changeset	204 return foo;
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe] jwe parents: 2006 diff changeset	205 }
468a96dd03fc [project @ 1996-03-29 20:09:05 by jwe] jwe parents: 2006 diff changeset	206
3933 f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe] jwe parents: 3657 diff changeset	207 template <class T>
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	208 T
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	209 Array<T>::range_error (const char *fcn, octave_idx_type i, octave_idx_type j) const
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	210 {
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	211 (*current_liboctave_error_handler)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	212 ("%s (%d, %d): range error", fcn, i, j);
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	213 return T ();
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	214 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	215
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	216 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	217 T&
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	218 Array<T>::range_error (const char *fcn, octave_idx_type i, octave_idx_type j)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	219 {
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	220 (*current_liboctave_error_handler)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	221 ("%s (%d, %d): range error", fcn, i, j);
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	222 static T foo;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	223 return foo;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	224 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	225
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	226 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	227 T
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	228 Array<T>::range_error (const char *fcn, octave_idx_type i, octave_idx_type j, octave_idx_type k) const
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	229 {
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	230 (*current_liboctave_error_handler)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	231 ("%s (%d, %d, %d): range error", fcn, i, j, k);
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	232 return T ();
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	233 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	234
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	235 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	236 T&
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	237 Array<T>::range_error (const char *fcn, octave_idx_type i, octave_idx_type j, octave_idx_type k)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	238 {
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	239 (*current_liboctave_error_handler)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	240 ("%s (%d, %d, %d): range error", fcn, i, j, k);
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	241 static T foo;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	242 return foo;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	243 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	244
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	245 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	246 T
6867 83619ae96c1d [project @ 2007-09-06 12:08:44 by dbateman] dbateman parents: 6674 diff changeset	247 Array<T>::range_error (const char *fcn, const Array<octave_idx_type>& ra_idx) const
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	248 {
5765 7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe] jwe parents: 5632 diff changeset	249 std::ostringstream buf;
4661 12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	250
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	251 buf << fcn << " (";
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	252
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	253 octave_idx_type n = ra_idx.length ();
4661 12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	254
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	255 if (n > 0)
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	256 buf << ra_idx(0);
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	257
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	258 for (octave_idx_type i = 1; i < n; i++)
4661 12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	259 buf << ", " << ra_idx(i);
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	260
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	261 buf << "): range error";
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	262
5765 7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe] jwe parents: 5632 diff changeset	263 std::string buf_str = buf.str ();
7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe] jwe parents: 5632 diff changeset	264
7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe] jwe parents: 5632 diff changeset	265 (*current_liboctave_error_handler) (buf_str.c_str ());
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	266
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	267 return T ();
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	268 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	269
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	270 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	271 T&
6867 83619ae96c1d [project @ 2007-09-06 12:08:44 by dbateman] dbateman parents: 6674 diff changeset	272 Array<T>::range_error (const char *fcn, const Array<octave_idx_type>& ra_idx)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	273 {
5765 7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe] jwe parents: 5632 diff changeset	274 std::ostringstream buf;
4661 12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	275
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	276 buf << fcn << " (";
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	277
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	278 octave_idx_type n = ra_idx.length ();
4661 12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	279
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	280 if (n > 0)
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	281 buf << ra_idx(0);
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	282
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	283 for (octave_idx_type i = 1; i < n; i++)
4661 12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	284 buf << ", " << ra_idx(i);
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	285
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	286 buf << "): range error";
12b6fbd57436 [project @ 2003-11-25 05:41:35 by jwe] jwe parents: 4657 diff changeset	287
5765 7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe] jwe parents: 5632 diff changeset	288 std::string buf_str = buf.str ();
7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe] jwe parents: 5632 diff changeset	289
7ba9ad1fec11 [project @ 2006-04-17 05:05:15 by jwe] jwe parents: 5632 diff changeset	290 (*current_liboctave_error_handler) (buf_str.c_str ());
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	291
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	292 static T foo;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	293 return foo;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	294 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	295
9731 7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	296
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	297 template <class T>
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	298 Array<T>
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	299 Array<T>::column (octave_idx_type k) const
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	300 {
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	301 octave_idx_type r = dimensions(0);
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	302 #ifdef BOUNDS_CHECKING
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	303 if (k < 0 \|\| k * r >= numel ())
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	304 range_error ("column", k);
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	305 #endif
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	306
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	307 return Array<T> (this, dim_vector (r, 1), kr, k*r + r);
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	308 }
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	309
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	310 template <class T>
4567 fc30061d01da [project @ 2003-10-29 20:11:15 by jwe] jwe parents: 4553 diff changeset	311 Array<T>
9731 7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	312 Array<T>::page (octave_idx_type k) const
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	313 {
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	314 octave_idx_type r = dimensions(0), c = dimensions (1), p = r*c;
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	315 #ifdef BOUNDS_CHECKING
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	316 if (k < 0 \|\| k * p >= numel ())
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	317 range_error ("page", k);
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	318 #endif
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	319
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	320 return Array<T> (this, dim_vector (r, c), kp, k*p + p);
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	321 }
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	322
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	323 template <class T>
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	324 Array<T>
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	325 Array<T>::linearize (void) const
4567 fc30061d01da [project @ 2003-10-29 20:11:15 by jwe] jwe parents: 4553 diff changeset	326 {
9731 7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	327 octave_idx_type n = numel ();
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	328 return Array<T> (*this, dim_vector (n, 1), 0, n);
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	329 }
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	330
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	331 template <class T>
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	332 Array<T>
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	333 Array<T>::linear_slice (octave_idx_type lo, octave_idx_type up) const
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	334 {
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	335 #ifdef BOUNDS_CHECKING
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	336 if (lo < 0 \|\| up > numel ())
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	337 range_error ("linear_slice", lo, up);
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	338 #endif
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	339 if (up < lo) up = lo;
7b9cbaad68d6 extend Array<T> Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	340 return Array<T> (*this, dim_vector (up - lo, 1), lo, up);
4567 fc30061d01da [project @ 2003-10-29 20:11:15 by jwe] jwe parents: 4553 diff changeset	341 }
fc30061d01da [project @ 2003-10-29 20:11:15 by jwe] jwe parents: 4553 diff changeset	342
8410 ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	343 // Helper class for multi-d dimension permuting (generalized transpose).
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	344 class rec_permute_helper
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	345 {
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	346 octave_idx_type dim, stride;
9012 9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	347 bool use_blk;
8410 ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	348 int top;
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	349
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	350 public:
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	351 rec_permute_helper (const dim_vector& dv, const Array<octave_idx_type>& perm)
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	352 {
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	353 int n = dv.length ();
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	354 assert (n == perm.length ());
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	355
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	356 dim = new octave_idx_type [2*n];
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	357 // A hack to avoid double allocation
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	358 stride = dim + n;
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	359
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	360 // Get cumulative dimensions.
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	361 OCTAVE_LOCAL_BUFFER (octave_idx_type, cdim, n+1);
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	362 cdim[0] = 1;
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	363 for (int i = 1; i < n+1; i++) cdim[i] = cdim[i-1] * dv(i-1);
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	364
9012 9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	365 // Setup the permuted strides.
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	366 for (int k = 0; k < n; k++)
8410 ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	367 {
9012 9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	368 int kk = perm(k);
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	369 dim[k] = dv(kk);
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	370 stride[k] = cdim[kk];
8410 ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	371 }
9012 9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	372
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	373 // Reduce contiguous runs.
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	374 top = 0;
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	375 for (int k = 1; k < n; k++)
8410 ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	376 {
9012 9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	377 if (stride[k] == stride[top]*dim[top])
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	378 dim[top] *= dim[k];
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	379 else
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	380 {
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	381 top++;
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	382 dim[top] = dim[k];
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	383 stride[top] = stride[k];
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	384 }
8410 ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	385 }
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	386
9012 9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	387 // Determine whether we can use block transposes.
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	388 use_blk = top >= 1 && stride[1] == 1 && stride[0] == dim[1];
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	389
8410 ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	390 }
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	391
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	392 ~rec_permute_helper (void) { delete [] dim; }
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	393
9012 9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	394 // Helper method for fast blocked transpose.
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	395 template <class T>
9121 bb62bc406ea7 reuse fast blocked transpose implementation from rec_permute_helper in Array<T>::transpose Jaroslav Hajek <highegg@gmail.com> parents: 9100 diff changeset	396 static T *
bb62bc406ea7 reuse fast blocked transpose implementation from rec_permute_helper in Array<T>::transpose Jaroslav Hajek <highegg@gmail.com> parents: 9100 diff changeset	397 blk_trans (const T src, T dest, octave_idx_type nr, octave_idx_type nc)
9012 9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	398 {
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	399 static const octave_idx_type m = 8;
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	400 OCTAVE_LOCAL_BUFFER (T, blk, m*m);
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	401 for (octave_idx_type kr = 0; kr < nr; kr += m)
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	402 for (octave_idx_type kc = 0; kc < nc; kc += m)
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	403 {
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	404 octave_idx_type lr = std::min (m, nr - kr);
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	405 octave_idx_type lc = std::min (m, nc - kc);
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	406 if (lr == m && lc == m)
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	407 {
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	408 const T ss = src + kc nr + kr;
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	409 for (octave_idx_type j = 0; j < m; j++)
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	410 for (octave_idx_type i = 0; i < m; i++)
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	411 blk[jm+i] = ss[jnr + i];
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	412 T dd = dest + kr nc + kc;
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	413 for (octave_idx_type j = 0; j < m; j++)
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	414 for (octave_idx_type i = 0; i < m; i++)
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	415 dd[jnc+i] = blk[im+j];
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	416 }
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	417 else
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	418 {
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	419 const T ss = src + kc nr + kr;
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	420 for (octave_idx_type j = 0; j < lc; j++)
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	421 for (octave_idx_type i = 0; i < lr; i++)
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	422 blk[jm+i] = ss[jnr + i];
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	423 T dd = dest + kr nc + kc;
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	424 for (octave_idx_type j = 0; j < lr; j++)
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	425 for (octave_idx_type i = 0; i < lc; i++)
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	426 dd[jnc+i] = blk[im+j];
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	427 }
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	428 }
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	429
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	430 return dest + nr*nc;
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	431 }
8410 ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	432 private:
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	433
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	434 // Recursive N-d generalized transpose
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	435 template <class T>
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	436 T do_permute (const T src, T *dest, int lev) const
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	437 {
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	438 if (lev == 0)
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	439 {
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	440 octave_idx_type step = stride[0], len = dim[0];
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	441 if (step == 1)
9773 01f897d8a130 optimize memory manipulation by arrays & indexing Jaroslav Hajek <highegg@gmail.com> parents: 9732 diff changeset	442 {
9780 6dafc60dde31 rename oct-mem functions Jaroslav Hajek <highegg@gmail.com> parents: 9773 diff changeset	443 copy_or_memcpy (len, src, dest);
9773 01f897d8a130 optimize memory manipulation by arrays & indexing Jaroslav Hajek <highegg@gmail.com> parents: 9732 diff changeset	444 dest += len;
01f897d8a130 optimize memory manipulation by arrays & indexing Jaroslav Hajek <highegg@gmail.com> parents: 9732 diff changeset	445 }
8410 ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	446 else
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	447 {
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	448 for (octave_idx_type i = 0, j = 0; i < len; i++, j += step)
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	449 dest[i] = src[j];
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	450
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	451 dest += len;
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	452 }
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	453 }
9012 9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	454 else if (use_blk && lev == 1)
9f5e095555fc smarter algorithm for permute Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	455 dest = blk_trans (src, dest, dim[1], dim[0]);
8410 ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	456 else
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	457 {
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	458 octave_idx_type step = stride[lev], len = dim[lev];
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	459 for (octave_idx_type i = 0, j = 0; i < len; i++, j+= step)
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	460 dest = do_permute (src + i * step, dest, lev-1);
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	461 }
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	462
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	463 return dest;
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	464 }
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	465
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	466 public:
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	467
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	468 template <class T>
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	469 void permute (const T src, T dest) const { do_permute (src, dest, top); }
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	470
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	471 };
7241 da540e715d05 [project @ 2007-12-03 22:55:20 by jwe] jwe parents: 7189 diff changeset	472
5607 4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe] jwe parents: 5535 diff changeset	473
4567 fc30061d01da [project @ 2003-10-29 20:11:15 by jwe] jwe parents: 4553 diff changeset	474 template <class T>
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	475 Array<T>
5607 4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe] jwe parents: 5535 diff changeset	476 Array<T>::permute (const Array<octave_idx_type>& perm_vec_arg, bool inv) const
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	477 {
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	478 Array<T> retval;
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	479
5607 4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe] jwe parents: 5535 diff changeset	480 Array<octave_idx_type> perm_vec = perm_vec_arg;
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe] jwe parents: 5535 diff changeset	481
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	482 dim_vector dv = dims ();
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	483
8410 ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	484 int perm_vec_len = perm_vec_arg.length ();
5148 9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	485
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	486 if (perm_vec_len < dv.length ())
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	487 (*current_liboctave_error_handler)
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	488 ("%s: invalid permutation vector", inv ? "ipermute" : "permute");
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	489
9507 b096d11237be dim_vector improvements Jaroslav Hajek <highegg@gmail.com> parents: 9341 diff changeset	490 dim_vector dv_new = dim_vector::alloc (perm_vec_len);
5148 9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	491
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	492 // Append singleton dimensions as needed.
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	493 dv.resize (perm_vec_len, 1);
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	494
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	495 // Need this array to check for identical elements in permutation array.
8410 ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	496 OCTAVE_LOCAL_BUFFER_INIT (bool, checked, perm_vec_len, false);
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	497
9678 c929f09457b7 rewrite num2cell for speed-up + a few associated fixes Jaroslav Hajek <highegg@gmail.com> parents: 9624 diff changeset	498 bool identity = true;
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes Jaroslav Hajek <highegg@gmail.com> parents: 9624 diff changeset	499
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	500 // Find dimension vector of permuted array.
5148 9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	501 for (int i = 0; i < perm_vec_len; i++)
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	502 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	503 octave_idx_type perm_elt = perm_vec.elem (i);
5148 9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	504 if (perm_elt >= perm_vec_len \|\| perm_elt < 0)
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	505 {
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	506 (*current_liboctave_error_handler)
5148 9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	507 ("%s: permutation vector contains an invalid element",
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	508 inv ? "ipermute" : "permute");
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	509
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	510 return retval;
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	511 }
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	512
8410 ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	513 if (checked[perm_elt])
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	514 {
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	515 (*current_liboctave_error_handler)
5148 9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	516 ("%s: permutation vector cannot contain identical elements",
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	517 inv ? "ipermute" : "permute");
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	518
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	519 return retval;
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	520 }
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	521 else
9678 c929f09457b7 rewrite num2cell for speed-up + a few associated fixes Jaroslav Hajek <highegg@gmail.com> parents: 9624 diff changeset	522 {
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes Jaroslav Hajek <highegg@gmail.com> parents: 9624 diff changeset	523 checked[perm_elt] = true;
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes Jaroslav Hajek <highegg@gmail.com> parents: 9624 diff changeset	524 identity = identity && perm_elt == i;
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes Jaroslav Hajek <highegg@gmail.com> parents: 9624 diff changeset	525 }
5148 9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	526
9eab94f5fadf [project @ 2005-02-18 19:04:34 by jwe] jwe parents: 5120 diff changeset	527 dv_new(i) = dv(perm_elt);
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	528 }
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	529
9678 c929f09457b7 rewrite num2cell for speed-up + a few associated fixes Jaroslav Hajek <highegg@gmail.com> parents: 9624 diff changeset	530 if (identity)
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes Jaroslav Hajek <highegg@gmail.com> parents: 9624 diff changeset	531 return *this;
c929f09457b7 rewrite num2cell for speed-up + a few associated fixes Jaroslav Hajek <highegg@gmail.com> parents: 9624 diff changeset	532
5607 4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe] jwe parents: 5535 diff changeset	533 if (inv)
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe] jwe parents: 5535 diff changeset	534 {
8410 ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	535 for (int i = 0; i < perm_vec_len; i++)
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	536 perm_vec(perm_vec_arg(i)) = i;
5607 4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe] jwe parents: 5535 diff changeset	537 }
4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe] jwe parents: 5535 diff changeset	538
8410 ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	539 retval = Array<T> (dv_new);
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	540
5940 0dd8428bb260 [project @ 2006-08-18 17:50:23 by jwe] jwe parents: 5837 diff changeset	541 if (numel () > 0)
5607 4b33d802ef3c [project @ 2006-02-08 18:56:54 by jwe] jwe parents: 5535 diff changeset	542 {
8410 ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	543 rec_permute_helper rh (dv, perm_vec);
ba24ecd4c019 optimize permute Jaroslav Hajek <highegg@gmail.com> parents: 8390 diff changeset	544 rh.permute (data (), retval.fortran_vec ());
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	545 }
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	546
5340 15843d76156d [project @ 2005-05-06 16:26:58 by jwe] jwe parents: 5338 diff changeset	547 retval.chop_trailing_singletons ();
5338 c4b55d47122e [project @ 2005-05-05 17:28:51 by jwe] jwe parents: 5307 diff changeset	548
4593 77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	549 return retval;
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	550 }
77566be8b9e9 [project @ 2003-11-11 17:25:42 by jwe] jwe parents: 4592 diff changeset	551
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	552 // Helper class for multi-d index reduction and recursive indexing/indexed assignment.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	553 // Rationale: we could avoid recursion using a state machine instead. However, using
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	554 // recursion is much more amenable to possible parallelization in the future.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	555 // Also, the recursion solution is cleaner and more understandable.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	556 class rec_index_helper
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	557 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	558 octave_idx_type dim, cdim;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	559 idx_vector *idx;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	560 int top;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	561
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	562 public:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	563 rec_index_helper (const dim_vector& dv, const Array<idx_vector>& ia)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	564 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	565 int n = ia.length ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	566 assert (n > 0 && (dv.length () == std::max (n, 2)));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	567
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	568 dim = new octave_idx_type [2*n];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	569 // A hack to avoid double allocation
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	570 cdim = dim + n;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	571 idx = new idx_vector [n];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	572 top = 0;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	573
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	574 dim[0] = dv(0);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	575 cdim[0] = 1;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	576 idx[0] = ia(0);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	577
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	578 for (int i = 1; i < n; i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	579 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	580 // Try reduction...
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	581 if (idx[top].maybe_reduce (dim[top], ia(i), dv(i)))
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	582 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	583 // Reduction successful, fold dimensions.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	584 dim[top] *= dv(i);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	585 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	586 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	587 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	588 // Unsuccessful, store index & cumulative dim.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	589 top++;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	590 idx[top] = ia(i);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	591 dim[top] = dv(i);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	592 cdim[top] = cdim[top-1] * dim[top-1];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	593 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	594 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	595 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	596
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	597 ~rec_index_helper (void) { delete [] idx; delete [] dim; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	598
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	599 private:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	600
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	601 // Recursive N-d indexing
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	602 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	603 T do_index (const T src, T *dest, int lev) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	604 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	605 if (lev == 0)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	606 dest += idx[0].index (src, dim[0], dest);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	607 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	608 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	609 octave_idx_type n = idx[lev].length (dim[lev]), d = cdim[lev];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	610 for (octave_idx_type i = 0; i < n; i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	611 dest = do_index (src + d*idx[lev].xelem (i), dest, lev-1);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	612 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	613
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	614 return dest;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	615 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	616
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	617 // Recursive N-d indexed assignment
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	618 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	619 const T do_assign (const T src, T *dest, int lev) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	620 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	621 if (lev == 0)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	622 src += idx[0].assign (src, dim[0], dest);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	623 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	624 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	625 octave_idx_type n = idx[lev].length (dim[lev]), d = cdim[lev];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	626 for (octave_idx_type i = 0; i < n; i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	627 src = do_assign (src, dest + d*idx[lev].xelem (i), lev-1);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	628 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	629
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	630 return src;
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	631 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	632
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	633 // Recursive N-d indexed assignment
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	634 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	635 void do_fill (const T& val, T *dest, int lev) const
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	636 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	637 if (lev == 0)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	638 idx[0].fill (val, dim[0], dest);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	639 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	640 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	641 octave_idx_type n = idx[lev].length (dim[lev]), d = cdim[lev];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	642 for (octave_idx_type i = 0; i < n; i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	643 do_fill (val, dest + d*idx[lev].xelem (i), lev-1);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	644 }
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	645 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	646
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	647 public:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	648
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	649 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	650 void index (const T src, T dest) const { do_index (src, dest, top); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	651
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	652 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	653 void assign (const T src, T dest) const { do_assign (src, dest, top); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	654
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	655 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	656 void fill (const T& val, T *dest) const { do_fill (val, dest, top); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	657
8523 ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	658 bool is_cont_range (octave_idx_type& l,
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	659 octave_idx_type& u) const
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	660 {
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	661 return top == 0 && idx[0].is_cont_range (dim[0], l, u);
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	662 }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	663 };
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	664
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	665 // Helper class for multi-d recursive resizing
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	666 // This handles resize () in an efficient manner, touching memory only
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	667 // once (apart from reinitialization)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	668 class rec_resize_helper
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	669 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	670 octave_idx_type cext, sext, *dext;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	671 int n;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	672
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	673 public:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	674 rec_resize_helper (const dim_vector& ndv, const dim_vector& odv)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	675 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	676 int l = ndv.length ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	677 assert (odv.length () == l);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	678 octave_idx_type ld = 1;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	679 int i = 0;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	680 for (; i < l-1 && ndv(i) == odv(i); i++) ld *= ndv(i);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	681 n = l - i;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	682 cext = new octave_idx_type[3*n];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	683 // Trick to avoid three allocations
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	684 sext = cext + n;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	685 dext = sext + n;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	686
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	687 octave_idx_type sld = ld, dld = ld;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	688 for (int j = 0; j < n; j++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	689 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	690 cext[j] = std::min (ndv(i+j), odv(i+j));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	691 sext[j] = sld *= odv(i+j);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	692 dext[j] = dld *= ndv(i+j);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	693 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	694 cext[0] *= ld;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	695 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	696
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	697 ~rec_resize_helper (void) { delete [] cext; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	698
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	699 private:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	700 // recursive resizing
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	701 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	702 void do_resize_fill (const T* src, T *dest, const T& rfv, int lev) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	703 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	704 if (lev == 0)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	705 {
9780 6dafc60dde31 rename oct-mem functions Jaroslav Hajek <highegg@gmail.com> parents: 9773 diff changeset	706 copy_or_memcpy (cext[0], src, dest);
6dafc60dde31 rename oct-mem functions Jaroslav Hajek <highegg@gmail.com> parents: 9773 diff changeset	707 fill_or_memset (dext[0] - cext[0], rfv, dest + cext[0]);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	708 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	709 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	710 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	711 octave_idx_type sd = sext[lev-1], dd = dext[lev-1], k;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	712 for (k = 0; k < cext[lev]; k++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	713 do_resize_fill (src + k * sd, dest + k * dd, rfv, lev - 1);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	714
9780 6dafc60dde31 rename oct-mem functions Jaroslav Hajek <highegg@gmail.com> parents: 9773 diff changeset	715 fill_or_memset (dext[lev] - k * dd, rfv, dest + k * dd);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	716 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	717 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	718 public:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	719 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	720 void resize_fill (const T* src, T *dest, const T& rfv) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	721 { do_resize_fill (src, dest, rfv, n-1); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	722
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	723 };
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	724
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	725 static void gripe_index_out_of_range (void)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	726 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	727 (*current_liboctave_error_handler)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	728 ("A(I): Index exceeds matrix dimension.");
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	729 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	730
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	731 template <class T>
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	732 Array<T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	733 Array<T>::index (const idx_vector& i) const
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	734 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	735 octave_idx_type n = numel ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	736 Array<T> retval;
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	737
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	738 if (i.is_colon ())
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	739 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	740 // A(:) produces a shallow copy as a column vector.
8523 ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	741 retval = Array<T> (*this, dim_vector (n, 1));
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	742 }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	743 else if (i.extent (n) != n)
4548 820323598f4f [project @ 2003-10-26 03:16:42 by jwe] jwe parents: 4545 diff changeset	744 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	745 gripe_index_out_of_range ();
4548 820323598f4f [project @ 2003-10-26 03:16:42 by jwe] jwe parents: 4545 diff changeset	746 }
820323598f4f [project @ 2003-10-26 03:16:42 by jwe] jwe parents: 4545 diff changeset	747 else
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	748 {
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	749 // FIXME -- this is the only place where orig_dimensions are used.
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	750 dim_vector rd = i.orig_dimensions ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	751 octave_idx_type il = i.length (n);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	752
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	753 // FIXME -- this is for Matlab compatibility. Matlab 2007 given
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	754 //
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	755 // b = ones(3,1)
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	756 //
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	757 // yields the following:
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	758 //
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	759 // b(zeros(0,0)) gives []
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	760 // b(zeros(1,0)) gives zeros(0,1)
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	761 // b(zeros(0,1)) gives zeros(0,1)
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	762 // b(zeros(0,m)) gives zeros(0,m)
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	763 // b(zeros(m,0)) gives zeros(m,0)
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	764 // b(1:2) gives ones(2,1)
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	765 // b(ones(2)) gives ones(2) etc.
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	766 //
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	767 // As you can see, the behaviour is weird, but the tests end up pretty
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	768 // simple. Nah, I don't want to suggest that this is ad hoc :)
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	769
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	770 if (ndims () == 2 && n != 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	771 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	772 if (columns () == 1 && rd(0) == 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	773 rd = dim_vector (il, 1);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	774 else if (rows () == 1 && rd(1) == 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	775 rd = dim_vector (1, il);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	776 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	777
8523 ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	778 octave_idx_type l, u;
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	779 if (il != 0 && i.is_cont_range (n, l, u))
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	780 // If suitable, produce a shallow slice.
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	781 retval = Array<T> (*this, rd, l, u);
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	782 else
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	783 {
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	784 // Don't use resize here to avoid useless initialization for POD
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	785 // types.
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	786 retval = Array<T> (rd);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	787
8523 ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	788 if (il != 0)
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	789 i.index (data (), n, retval.fortran_vec ());
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	790 }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	791 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	792
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	793 return retval;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	794 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	795
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	796 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	797 Array<T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	798 Array<T>::index (const idx_vector& i, const idx_vector& j) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	799 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	800 // Get dimensions, allowing Fortran indexing in the 2nd dim.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	801 dim_vector dv = dimensions.redim (2);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	802 octave_idx_type r = dv(0), c = dv(1);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	803 Array<T> retval;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	804
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	805 if (i.is_colon () && j.is_colon ())
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	806 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	807 // A(:,:) produces a shallow copy.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	808 retval = Array<T> (*this, dv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	809 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	810 else if (i.extent (r) != r \|\| j.extent (c) != c)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	811 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	812 gripe_index_out_of_range ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	813 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	814 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	815 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	816 octave_idx_type n = numel (), il = i.length (r), jl = j.length (c);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	817
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	818 idx_vector ii (i);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	819
8523 ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	820 if (ii.maybe_reduce (r, j, c))
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	821 {
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	822 octave_idx_type l, u;
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	823 if (ii.length () > 0 && ii.is_cont_range (n, l, u))
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	824 // If suitable, produce a shallow slice.
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	825 retval = Array<T> (*this, dim_vector (il, jl), l, u);
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	826 else
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	827 {
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	828 // Don't use resize here to avoid useless initialization for POD types.
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	829 retval = Array<T> (dim_vector (il, jl));
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	830
8523 ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	831 ii.index (data (), n, retval.fortran_vec ());
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	832 }
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	833 }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	834 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	835 {
8523 ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	836 // Don't use resize here to avoid useless initialization for POD types.
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	837 retval = Array<T> (dim_vector (il, jl));
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	838
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	839 const T* src = data ();
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	840 T *dest = retval.fortran_vec ();
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	841
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	842 for (octave_idx_type k = 0; k < jl; k++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	843 dest += i.index (src + r * j.xelem (k), r, dest);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	844 }
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	845 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	846
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	847 return retval;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	848 }
4747 3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe] jwe parents: 4746 diff changeset	849
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	850 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	851 Array<T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	852 Array<T>::index (const Array<idx_vector>& ia) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	853 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	854 int ial = ia.length ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	855 Array<T> retval;
4587 7b957b442818 [project @ 2003-11-10 15:50:39 by jwe] jwe parents: 4586 diff changeset	856
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	857 // FIXME: is this dispatching necessary?
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	858 if (ial == 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	859 retval = index (ia(0));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	860 else if (ial == 2)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	861 retval = index (ia(0), ia(1));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	862 else if (ial > 0)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	863 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	864 // Get dimensions, allowing Fortran indexing in the last dim.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	865 dim_vector dv = dimensions.redim (ial);
4747 3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe] jwe parents: 4746 diff changeset	866
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	867 // Check for out of bounds conditions.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	868 bool all_colons = true, mismatch = false;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	869 for (int i = 0; i < ial; i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	870 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	871 if (ia(i).extent (dv(i)) != dv(i))
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	872 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	873 mismatch = true;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	874 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	875 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	876 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	877 all_colons = all_colons && ia(i).is_colon ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	878 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	879
4870 2cbc6f37b0c2 [project @ 2004-04-21 17:30:51 by jwe] jwe parents: 4834 diff changeset	880
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	881 if (mismatch)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	882 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	883 gripe_index_out_of_range ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	884 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	885 else if (all_colons)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	886 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	887 // A(:,:,...,:) produces a shallow copy.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	888 retval = Array<T> (*this, dv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	889 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	890 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	891 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	892 // Form result dimensions.
9507 b096d11237be dim_vector improvements Jaroslav Hajek <highegg@gmail.com> parents: 9341 diff changeset	893 dim_vector rdv = dim_vector::alloc (ial);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	894 for (int i = 0; i < ial; i++) rdv(i) = ia(i).length (dv(i));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	895 rdv.chop_trailing_singletons ();
4870 2cbc6f37b0c2 [project @ 2004-04-21 17:30:51 by jwe] jwe parents: 4834 diff changeset	896
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	897 // Prepare for recursive indexing
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	898 rec_index_helper rh (dv, ia);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	899
8523 ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	900 octave_idx_type l, u;
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	901 if (rh.is_cont_range (l, u))
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	902 // If suitable, produce a shallow slice.
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	903 retval = Array<T> (*this, rdv, l, u);
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	904 else
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	905 {
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	906 // Don't use resize here to avoid useless initialization for POD types.
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	907 retval = Array<T> (rdv);
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	908
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	909 // Do it.
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	910 rh.index (data (), retval.fortran_vec ());
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	911 }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	912 }
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	913 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	914
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	915 return retval;
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	916 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	917
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	918 // FIXME -- the following is a common error message to resize,
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	919 // regardless of whether it's called from assign or elsewhere. It
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	920 // seems OK to me, but eventually the gripe can be specialized.
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	921 // Anyway, propagating various error messages into procedure is, IMHO,
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	922 // a nonsense. If anything, we should change error handling here (and
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	923 // throughout liboctave) to allow custom handling of errors
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	924 static void gripe_invalid_resize (void)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	925 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	926 (*current_liboctave_error_handler)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	927 ("resize: Invalid resizing operation or ambiguous assignment to an out-of-bounds array element.");
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	928 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	929
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	930 // The default fill value. Override if you want a different one.
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	931
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	932 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	933 T Array<T>::resize_fill_value ()
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	934 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	935 return T ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	936 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	937
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	938 // Yes, we could do resize using index & assign. However, that would
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	939 // possibly involve a lot more memory traffic than we actually need.
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	940
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	941 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	942 void
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	943 Array<T>::resize_fill (octave_idx_type n, const T& rfv)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	944 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	945 if (n >= 0 && ndims () == 2)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	946 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	947 dim_vector dv;
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	948 // This is driven by Matlab's behaviour of giving a row vector
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	949 // on some out-of-bounds assignments. Specifically, Matlab
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	950 // allows a(i) with out-of-bouds i when a is either of 0x0, 1x0,
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	951 // 1x1, 0xN, and gives a row vector in all cases (yes, even the
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	952 // last one, search me why). Giving a column vector would make
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	953 // much more sense (given the way trailing singleton dims are
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	954 // treated).
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	955 bool invalid = false;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	956 if (rows () == 0 \|\| rows () == 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	957 dv = dim_vector (1, n);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	958 else if (columns () == 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	959 dv = dim_vector (n, 1);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	960 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	961 invalid = true;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	962
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	963 if (invalid)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	964 gripe_invalid_resize ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	965 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	966 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	967 octave_idx_type nx = numel ();
9100 1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	968 if (n == nx - 1 && n > 0)
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	969 {
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	970 // Stack "pop" operation.
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	971 if (rep->count == 1)
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	972 slice_data[slice_len-1] = T ();
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	973 slice_len--;
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	974 dimensions = dv;
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	975 }
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	976 else if (n == nx + 1 && nx > 0)
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	977 {
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	978 // Stack "push" operation.
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	979 if (rep->count == 1 && slice_data + slice_len < rep->data + rep->len)
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	980 {
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	981 slice_data[slice_len++] = rfv;
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	982 dimensions = dv;
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	983 }
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	984 else
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	985 {
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	986 static const octave_idx_type max_stack_chunk = 1024;
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	987 octave_idx_type nn = n + std::min (nx, max_stack_chunk);
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	988 Array<T> tmp (Array<T> (nn), dv, 0, n);
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	989 T *dest = tmp.fortran_vec ();
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	990
9780 6dafc60dde31 rename oct-mem functions Jaroslav Hajek <highegg@gmail.com> parents: 9773 diff changeset	991 copy_or_memcpy (nx, data (), dest);
9100 1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	992 dest[nx] = rfv;
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	993
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	994 *this = tmp;
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	995 }
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	996 }
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	997 else if (n != nx)
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	998 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	999 Array<T> tmp = Array<T> (dv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1000 T *dest = tmp.fortran_vec ();
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1001
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1002 octave_idx_type n0 = std::min (n, nx), n1 = n - n0;
9780 6dafc60dde31 rename oct-mem functions Jaroslav Hajek <highegg@gmail.com> parents: 9773 diff changeset	1003 copy_or_memcpy (n0, data (), dest);
6dafc60dde31 rename oct-mem functions Jaroslav Hajek <highegg@gmail.com> parents: 9773 diff changeset	1004 fill_or_memset (n1, rfv, dest + n0);
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1005
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1006 *this = tmp;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1007 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1008 }
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1009 }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1010 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1011 gripe_invalid_resize ();
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1012 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1013
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1014 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1015 void
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1016 Array<T>::resize_fill (octave_idx_type r, octave_idx_type c, const T& rfv)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1017 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1018 if (r >= 0 && c >= 0 && ndims () == 2)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1019 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1020 octave_idx_type rx = rows (), cx = columns ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1021 if (r != rx \|\| c != cx)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1022 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1023 Array<T> tmp = Array<T> (dim_vector (r, c));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1024 T *dest = tmp.fortran_vec ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1025
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1026 octave_idx_type r0 = std::min (r, rx), r1 = r - r0;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1027 octave_idx_type c0 = std::min (c, cx), c1 = c - c0;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1028 const T *src = data ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1029 if (r == rx)
9773 01f897d8a130 optimize memory manipulation by arrays & indexing Jaroslav Hajek <highegg@gmail.com> parents: 9732 diff changeset	1030 {
9780 6dafc60dde31 rename oct-mem functions Jaroslav Hajek <highegg@gmail.com> parents: 9773 diff changeset	1031 copy_or_memcpy (r * c0, src, dest);
9773 01f897d8a130 optimize memory manipulation by arrays & indexing Jaroslav Hajek <highegg@gmail.com> parents: 9732 diff changeset	1032 dest += r * c0;
01f897d8a130 optimize memory manipulation by arrays & indexing Jaroslav Hajek <highegg@gmail.com> parents: 9732 diff changeset	1033 }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1034 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1035 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1036 for (octave_idx_type k = 0; k < c0; k++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1037 {
9780 6dafc60dde31 rename oct-mem functions Jaroslav Hajek <highegg@gmail.com> parents: 9773 diff changeset	1038 copy_or_memcpy (r0, src, dest);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1039 src += rx;
9773 01f897d8a130 optimize memory manipulation by arrays & indexing Jaroslav Hajek <highegg@gmail.com> parents: 9732 diff changeset	1040 dest += r0;
9780 6dafc60dde31 rename oct-mem functions Jaroslav Hajek <highegg@gmail.com> parents: 9773 diff changeset	1041 fill_or_memset (r1, rfv, dest);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1042 dest += r1;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1043 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1044 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1045
9780 6dafc60dde31 rename oct-mem functions Jaroslav Hajek <highegg@gmail.com> parents: 9773 diff changeset	1046 fill_or_memset (r * c1, rfv, dest);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1047
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1048 *this = tmp;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1049 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1050 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1051 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1052 gripe_invalid_resize ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1053
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1054 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1055
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1056 template<class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1057 void
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1058 Array<T>::resize_fill (const dim_vector& dv, const T& rfv)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1059 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1060 int dvl = dv.length ();
8784 374cb30311a8 remove dead branch in Array.cc Jaroslav Hajek <highegg@gmail.com> parents: 8760 diff changeset	1061 if (dvl == 2)
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1062 resize (dv(0), dv(1), rfv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1063 else if (dimensions != dv)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1064 {
8799 f6dc6eb57045 improve resize & resize on assignment Jaroslav Hajek <highegg@gmail.com> parents: 8784 diff changeset	1065 if (dimensions.length () <= dvl && ! dv.any_neg ())
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1066 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1067 Array<T> tmp (dv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1068 // Prepare for recursive resizing.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1069 rec_resize_helper rh (dv, dimensions.redim (dvl));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1070
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1071 // Do it.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1072 rh.resize_fill (data (), tmp.fortran_vec (), rfv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1073 *this = tmp;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1074 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1075 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1076 gripe_invalid_resize ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1077 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1078 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1079
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1080 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1081 Array<T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1082 Array<T>::index (const idx_vector& i, bool resize_ok, const T& rfv) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1083 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1084 Array<T> tmp = *this;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1085 if (resize_ok)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1086 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1087 octave_idx_type n = numel (), nx = i.extent (n);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1088 if (n != nx)
8563 3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1089 {
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1090 if (i.is_scalar ())
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1091 return Array<T> (1, rfv);
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1092 else
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1093 tmp.resize_fill (nx, rfv);
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1094 }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1095
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1096 if (tmp.numel () != nx)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1097 return Array<T> ();
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1098 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1099
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1100 return tmp.index (i);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1101 }
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1102
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1103 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1104 Array<T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1105 Array<T>::index (const idx_vector& i, const idx_vector& j,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1106 bool resize_ok, const T& rfv) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1107 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1108 Array<T> tmp = *this;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1109 if (resize_ok)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1110 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1111 dim_vector dv = dimensions.redim (2);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1112 octave_idx_type r = dv(0), c = dv(1);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1113 octave_idx_type rx = i.extent (r), cx = j.extent (c);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1114 if (r != rx \|\| c != cx)
8563 3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1115 {
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1116 if (i.is_scalar () && j.is_scalar ())
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1117 return Array<T> (1, rfv);
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1118 else
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1119 tmp.resize_fill (rx, cx, rfv);
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1120 }
4747 3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe] jwe parents: 4746 diff changeset	1121
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1122 if (tmp.rows () != rx \|\| tmp.columns () != cx)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1123 return Array<T> ();
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1124 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1125
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1126 return tmp.index (i, j);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1127 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1128
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1129 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1130 Array<T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1131 Array<T>::index (const Array<idx_vector>& ia,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1132 bool resize_ok, const T& rfv) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1133 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1134 Array<T> tmp = *this;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1135 if (resize_ok)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1136 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1137 int ial = ia.length ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1138 dim_vector dv = dimensions.redim (ial);
9507 b096d11237be dim_vector improvements Jaroslav Hajek <highegg@gmail.com> parents: 9341 diff changeset	1139 dim_vector dvx = dim_vector::alloc (ial);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1140 for (int i = 0; i < ial; i++) dvx(i) = ia(i).extent (dv (i));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1141 if (! (dvx == dv))
8563 3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1142 {
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1143 bool all_scalars = true;
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1144 for (int i = 0; i < ial; i++)
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1145 all_scalars = all_scalars && ia(i).is_scalar ();
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1146 if (all_scalars)
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1147 return Array<T> (1, rfv);
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1148 else
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1149 tmp.resize_fill (dvx, rfv);
3a3421a9f0bb optimize resizable indexing with scalars Jaroslav Hajek <highegg@gmail.com> parents: 8527 diff changeset	1150 }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1151
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1152 if (tmp.dimensions != dvx)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1153 return Array<T> ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1154 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1155
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1156 return tmp.index (ia);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1157 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1158
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1159
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1160 static void
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1161 gripe_invalid_assignment_size (void)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1162 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1163 (*current_liboctave_error_handler)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1164 ("A(I) = X: X must have the same size as I");
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1165 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1166
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1167 static void
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1168 gripe_assignment_dimension_mismatch (void)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1169 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1170 (*current_liboctave_error_handler)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1171 ("A(I,J,...) = X: dimensions mismatch");
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1172 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1173
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1174 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1175 void
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1176 Array<T>::assign (const idx_vector& i, const Array<T>& rhs, const T& rfv)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1177 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1178 octave_idx_type n = numel (), rhl = rhs.numel ();
4548 820323598f4f [project @ 2003-10-26 03:16:42 by jwe] jwe parents: 4545 diff changeset	1179
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1180 if (rhl == 1 \|\| i.length (n) == rhl)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1181 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1182 octave_idx_type nx = i.extent (n);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1183 // Try to resize first if necessary.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1184 if (nx != n)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1185 {
8580 188d38a553c7 further indexing optimization touches Jaroslav Hajek <highegg@gmail.com> parents: 8563 diff changeset	1186 // Optimize case A = []; A(1:n) = X with A empty.
8390 49901b624316 optimize repmat for scalar & matrix case Jaroslav Hajek <highegg@gmail.com> parents: 8379 diff changeset	1187 if (rows () == 0 && columns () == 0 && ndims () == 2
8580 188d38a553c7 further indexing optimization touches Jaroslav Hajek <highegg@gmail.com> parents: 8563 diff changeset	1188 && i.is_colon_equiv (nx))
188d38a553c7 further indexing optimization touches Jaroslav Hajek <highegg@gmail.com> parents: 8563 diff changeset	1189 {
188d38a553c7 further indexing optimization touches Jaroslav Hajek <highegg@gmail.com> parents: 8563 diff changeset	1190 if (rhl == 1)
188d38a553c7 further indexing optimization touches Jaroslav Hajek <highegg@gmail.com> parents: 8563 diff changeset	1191 *this = Array<T> (dim_vector (1, nx), rhs(0));
188d38a553c7 further indexing optimization touches Jaroslav Hajek <highegg@gmail.com> parents: 8563 diff changeset	1192 else
188d38a553c7 further indexing optimization touches Jaroslav Hajek <highegg@gmail.com> parents: 8563 diff changeset	1193 *this = Array<T> (rhs, dim_vector (1, nx));
188d38a553c7 further indexing optimization touches Jaroslav Hajek <highegg@gmail.com> parents: 8563 diff changeset	1194 return;
188d38a553c7 further indexing optimization touches Jaroslav Hajek <highegg@gmail.com> parents: 8563 diff changeset	1195 }
188d38a553c7 further indexing optimization touches Jaroslav Hajek <highegg@gmail.com> parents: 8563 diff changeset	1196
188d38a553c7 further indexing optimization touches Jaroslav Hajek <highegg@gmail.com> parents: 8563 diff changeset	1197 resize_fill (nx, rfv);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1198 n = numel ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1199 }
4747 3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe] jwe parents: 4746 diff changeset	1200
9058 2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1201 if (i.is_colon ())
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1202 {
9058 2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1203 // A(:) = X makes a full fill or a shallow copy.
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1204 if (rhl == 1)
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1205 fill (rhs(0));
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1206 else
9058 2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1207 *this = rhs.reshape (dimensions);
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1208 }
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1209 else
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1210 {
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1211 if (rhl == 1)
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1212 i.fill (rhs(0), n, fortran_vec ());
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1213 else
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1214 i.assign (rhs.data (), n, fortran_vec ());
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1215 }
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1216 }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1217 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1218 gripe_invalid_assignment_size ();
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1219 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1220
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1221 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1222 void
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1223 Array<T>::assign (const idx_vector& i, const idx_vector& j,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1224 const Array<T>& rhs, const T& rfv)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1225 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1226 // Get RHS extents, discarding singletons.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1227 dim_vector rhdv = rhs.dims ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1228 // Get LHS extents, allowing Fortran indexing in the second dim.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1229 dim_vector dv = dimensions.redim (2);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1230 // Check for out-of-bounds and form resizing dimensions.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1231 dim_vector rdv;
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	1232 // In the special when all dimensions are zero, colons are allowed
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	1233 // to inquire the shape of RHS. The rules are more obscure, so we
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	1234 // solve that elsewhere.
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1235 if (dv.all_zero ())
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1236 rdv = zero_dims_inquire (i, j, rhdv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1237 else
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1238 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1239 rdv(0) = i.extent (dv(0));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1240 rdv(1) = j.extent (dv(1));
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1241 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1242
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1243 bool isfill = rhs.numel () == 1;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1244 octave_idx_type il = i.length (rdv(0)), jl = j.length (rdv(1));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1245 rhdv.chop_all_singletons ();
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	1246 bool match = (isfill
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	1247 \|\| (rhdv.length () == 2 && il == rhdv(0) && jl == rhdv(1)));
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1248 match = match \|\| (il == 1 && jl == rhdv(0) && rhdv(1) == 1);
4548 820323598f4f [project @ 2003-10-26 03:16:42 by jwe] jwe parents: 4545 diff changeset	1249
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1250 if (match)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1251 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1252 // Resize if requested.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1253 if (rdv != dv)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1254 {
8580 188d38a553c7 further indexing optimization touches Jaroslav Hajek <highegg@gmail.com> parents: 8563 diff changeset	1255 // Optimize case A = []; A(1:m, 1:n) = X
188d38a553c7 further indexing optimization touches Jaroslav Hajek <highegg@gmail.com> parents: 8563 diff changeset	1256 if (dv.all_zero () && i.is_colon_equiv (rdv(0))
188d38a553c7 further indexing optimization touches Jaroslav Hajek <highegg@gmail.com> parents: 8563 diff changeset	1257 && j.is_colon_equiv (rdv(1)))
188d38a553c7 further indexing optimization touches Jaroslav Hajek <highegg@gmail.com> parents: 8563 diff changeset	1258 {
188d38a553c7 further indexing optimization touches Jaroslav Hajek <highegg@gmail.com> parents: 8563 diff changeset	1259 if (isfill)
188d38a553c7 further indexing optimization touches Jaroslav Hajek <highegg@gmail.com> parents: 8563 diff changeset	1260 *this = Array<T> (rdv, rhs(0));
188d38a553c7 further indexing optimization touches Jaroslav Hajek <highegg@gmail.com> parents: 8563 diff changeset	1261 else
188d38a553c7 further indexing optimization touches Jaroslav Hajek <highegg@gmail.com> parents: 8563 diff changeset	1262 *this = Array<T> (rhs, rdv);
188d38a553c7 further indexing optimization touches Jaroslav Hajek <highegg@gmail.com> parents: 8563 diff changeset	1263 return;
188d38a553c7 further indexing optimization touches Jaroslav Hajek <highegg@gmail.com> parents: 8563 diff changeset	1264 }
188d38a553c7 further indexing optimization touches Jaroslav Hajek <highegg@gmail.com> parents: 8563 diff changeset	1265
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1266 resize (rdv, rfv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1267 dv = dimensions;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1268 }
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1269
9058 2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1270 if (i.is_colon () && j.is_colon ())
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1271 {
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1272 // A(:,:) = X makes a full fill or a shallow copy
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1273 if (isfill)
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1274 fill (rhs(0));
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1275 else
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1276 *this = rhs.reshape (dimensions);
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1277 }
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1278 else
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1279 {
9058 2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1280 // The actual work.
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1281 octave_idx_type n = numel (), r = dv (0), c = dv (1);
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1282 idx_vector ii (i);
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1283
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1284 const T* src = rhs.data ();
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1285 T *dest = fortran_vec ();
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1286
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1287 // Try reduction first.
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1288 if (ii.maybe_reduce (r, j, c))
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1289 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1290 if (isfill)
9058 2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1291 ii.fill (*src, n, dest);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1292 else
9058 2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1293 ii.assign (src, n, dest);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1294 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1295 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1296 {
9058 2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1297 if (isfill)
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1298 {
9058 2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1299 for (octave_idx_type k = 0; k < jl; k++)
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1300 i.fill (src, r, dest + r j.xelem (k));
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1301 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1302 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1303 {
9058 2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1304 for (octave_idx_type k = 0; k < jl; k++)
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1305 src += i.assign (src, r, dest + r * j.xelem (k));
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1306 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1307 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1308 }
4747 3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe] jwe parents: 4746 diff changeset	1309 }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1310 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1311 gripe_assignment_dimension_mismatch ();
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1312 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1313
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1314 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1315 void
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1316 Array<T>::assign (const Array<idx_vector>& ia,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1317 const Array<T>& rhs, const T& rfv)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1318 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1319 int ial = ia.length ();
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1320
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1321 // FIXME: is this dispatching necessary / desirable?
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1322 if (ial == 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1323 assign (ia(0), rhs, rfv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1324 else if (ial == 2)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1325 assign (ia(0), ia(1), rhs, rfv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1326 else if (ial > 0)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1327 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1328 // Get RHS extents, discarding singletons.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1329 dim_vector rhdv = rhs.dims ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1330
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1331 // Get LHS extents, allowing Fortran indexing in the second dim.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1332 dim_vector dv = dimensions.redim (ial);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1333
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1334 // Get the extents forced by indexing.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1335 dim_vector rdv;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1336
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	1337 // In the special when all dimensions are zero, colons are
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	1338 // allowed to inquire the shape of RHS. The rules are more
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	1339 // obscure, so we solve that elsewhere.
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1340 if (dv.all_zero ())
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1341 rdv = zero_dims_inquire (ia, rhdv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1342 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1343 {
9507 b096d11237be dim_vector improvements Jaroslav Hajek <highegg@gmail.com> parents: 9341 diff changeset	1344 rdv = dim_vector::alloc (ial);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1345 for (int i = 0; i < ial; i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1346 rdv(i) = ia(i).extent (dv(i));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1347 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1348
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1349 // Check whether LHS and RHS match, up to singleton dims.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1350 bool match = true, all_colons = true, isfill = rhs.numel () == 1;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1351
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1352 rhdv.chop_all_singletons ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1353 int j = 0, rhdvl = rhdv.length ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1354 for (int i = 0; i < ial; i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1355 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1356 all_colons = all_colons && ia(i).is_colon ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1357 octave_idx_type l = ia(i).length (rdv(i));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1358 if (l == 1) continue;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1359 match = match && j < rhdvl && l == rhdv(j++);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1360 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1361
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1362 match = match && (j == rhdvl \|\| rhdv(j) == 1);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1363 match = match \|\| isfill;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1364
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1365 if (match)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1366 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1367 // Resize first if necessary.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1368 if (rdv != dv)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1369 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1370 resize_fill (rdv, rfv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1371 dv = dimensions;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1372 chop_trailing_singletons ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1373 }
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1374
9058 2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1375 if (all_colons)
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1376 {
9058 2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1377 // A(:,:,...,:) = X makes a full fill or a shallow copy.
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1378 if (isfill)
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1379 fill (rhs(0));
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1380 else
9058 2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1381 *this = rhs.reshape (dimensions);
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1382 }
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1383 else
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1384 {
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1385 // Do the actual work.
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1386
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1387 // Prepare for recursive indexing
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1388 rec_index_helper rh (dv, ia);
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1389
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1390 // Do it.
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1391 if (isfill)
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1392 rh.fill (rhs(0), fortran_vec ());
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1393 else
2da105bf2507 remove redundant checks from Array<T>::index Jaroslav Hajek <highegg@gmail.com> parents: 9046 diff changeset	1394 rh.assign (rhs.data (), fortran_vec ());
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1395 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1396 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1397 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1398 gripe_assignment_dimension_mismatch ();
4553 c7eb767505e9 [project @ 2003-10-27 21:39:55 by jwe] jwe parents: 4548 diff changeset	1399 }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1400 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1401
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1402 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1403 void
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1404 Array<T>::delete_elements (const idx_vector& i)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1405 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1406 octave_idx_type n = numel ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1407 if (i.is_colon ())
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1408 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1409 *this = Array<T> ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1410 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1411 else if (i.extent (n) != n)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1412 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1413 gripe_index_out_of_range ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1414 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1415 else if (i.length (n) != 0)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1416 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1417 octave_idx_type l, u;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1418 bool col_vec = ndims () == 2 && columns () == 1 && rows () != 1;
9100 1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	1419 if (i.is_scalar () && i(0) == n-1)
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	1420 {
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	1421 // Stack "pop" operation.
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	1422 resize (n-1);
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	1423 }
1a8bbfb2f7cf optimize simple stack operations on arrays Jaroslav Hajek <highegg@gmail.com> parents: 9058 diff changeset	1424 else if (i.is_cont_range (n, l, u))
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1425 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1426 // Special case deleting a contiguous range.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1427 octave_idx_type m = n + l - u;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1428 Array<T> tmp (dim_vector (col_vec ? m : 1, !col_vec ? m : 1));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1429 const T *src = data ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1430 T *dest = tmp.fortran_vec ();
9780 6dafc60dde31 rename oct-mem functions Jaroslav Hajek <highegg@gmail.com> parents: 9773 diff changeset	1431 copy_or_memcpy (l, src, dest);
6dafc60dde31 rename oct-mem functions Jaroslav Hajek <highegg@gmail.com> parents: 9773 diff changeset	1432 copy_or_memcpy (n - u, src + u, dest + l);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1433 *this = tmp;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1434 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1435 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1436 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1437 // Use index.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1438 *this = index (i.complement (n));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1439 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1440 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1441 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1442
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1443 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1444 void
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1445 Array<T>::delete_elements (int dim, const idx_vector& i)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1446 {
8302 f2e050b62199 fix dim check in Array<T>::delete_elements Jaroslav Hajek <highegg@gmail.com> parents: 8290 diff changeset	1447 if (dim < 0 \|\| dim >= ndims ())
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1448 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1449 (*current_liboctave_error_handler)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1450 ("invalid dimension in delete_elements");
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1451 return;
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1452 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1453
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1454 octave_idx_type n = dimensions (dim);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1455 if (i.is_colon ())
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1456 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1457 *this = Array<T> ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1458 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1459 else if (i.extent (n) != n)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1460 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1461 gripe_index_out_of_range ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1462 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1463 else if (i.length (n) != 0)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1464 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1465 octave_idx_type l, u;
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1466
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1467 if (i.is_cont_range (n, l, u))
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1468 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1469 // Special case deleting a contiguous range.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1470 octave_idx_type nd = n + l - u, dl = 1, du = 1;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1471 dim_vector rdv = dimensions;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1472 rdv(dim) = nd;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1473 for (int k = 0; k < dim; k++) dl *= dimensions(k);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1474 for (int k = dim + 1; k < ndims (); k++) du *= dimensions(k);
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1475
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1476 // Special case deleting a contiguous range.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1477 Array<T> tmp = Array<T> (rdv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1478 const T *src = data ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1479 T *dest = tmp.fortran_vec ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1480 l = dl; u = dl; n *= dl;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1481 for (octave_idx_type k = 0; k < du; k++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1482 {
9780 6dafc60dde31 rename oct-mem functions Jaroslav Hajek <highegg@gmail.com> parents: 9773 diff changeset	1483 copy_or_memcpy (l, src, dest);
9773 01f897d8a130 optimize memory manipulation by arrays & indexing Jaroslav Hajek <highegg@gmail.com> parents: 9732 diff changeset	1484 dest += l;
9780 6dafc60dde31 rename oct-mem functions Jaroslav Hajek <highegg@gmail.com> parents: 9773 diff changeset	1485 copy_or_memcpy (n - u, src + u, dest);
9773 01f897d8a130 optimize memory manipulation by arrays & indexing Jaroslav Hajek <highegg@gmail.com> parents: 9732 diff changeset	1486 dest += n - u;
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1487 src += n;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1488 }
4870 2cbc6f37b0c2 [project @ 2004-04-21 17:30:51 by jwe] jwe parents: 4834 diff changeset	1489
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1490 *this = tmp;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1491 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1492 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1493 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1494 // Use index.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1495 Array<idx_vector> ia (ndims (), idx_vector::colon);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1496 ia (dim) = i.complement (n);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1497 *this = index (ia);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1498 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1499 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1500 }
4747 3f28979bbe2c [project @ 2004-02-06 23:56:46 by jwe] jwe parents: 4746 diff changeset	1501
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1502 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1503 void
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1504 Array<T>::delete_elements (const Array<idx_vector>& ia)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1505 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1506 if (ia.length () == 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1507 delete_elements (ia(0));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1508 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1509 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1510 int len = ia.length (), k, dim = -1;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1511 for (k = 0; k < len; k++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1512 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1513 if (! ia(k).is_colon ())
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1514 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1515 if (dim < 0)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1516 dim = k;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1517 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1518 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1519 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1520 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1521 if (dim < 0)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1522 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1523 dim_vector dv = dimensions;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1524 dv(0) = 0;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1525 *this = Array<T> (dv);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1526 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1527 else if (k == len)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1528 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1529 delete_elements (dim, ia(dim));
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1530 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1531 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1532 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1533 (*current_liboctave_error_handler)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1534 ("A null assignment can only have one non-colon index.");
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1535 }
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1536 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1537
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1538 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1539
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1540 // FIXME: Remove these methods or implement them using assign.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1541
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1542 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1543 Array<T>&
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1544 Array<T>::insert (const Array<T>& a, octave_idx_type r, octave_idx_type c)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1545 {
4786 fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1546 if (ndims () == 2 && a.ndims () == 2)
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1547 insert2 (a, r, c);
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1548 else
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1549 insertN (a, r, c);
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1550
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1551 return *this;
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1552 }
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1553
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1554
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1555 template <class T>
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1556 Array<T>&
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1557 Array<T>::insert2 (const Array<T>& a, octave_idx_type r, octave_idx_type c)
4786 fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1558 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1559 octave_idx_type a_rows = a.rows ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1560 octave_idx_type a_cols = a.cols ();
4786 fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1561
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1562 if (r < 0 \|\| r + a_rows > rows () \|\| c < 0 \|\| c + a_cols > cols ())
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1563 {
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1564 (*current_liboctave_error_handler) ("range error for insert");
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1565 return *this;
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1566 }
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1567
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1568 for (octave_idx_type j = 0; j < a_cols; j++)
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1569 for (octave_idx_type i = 0; i < a_rows; i++)
4786 fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1570 elem (r+i, c+j) = a.elem (i, j);
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1571
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1572 return *this;
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1573 }
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1574
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1575 template <class T>
fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1576 Array<T>&
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1577 Array<T>::insertN (const Array<T>& a, octave_idx_type r, octave_idx_type c)
4786 fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4765 diff changeset	1578 {
4806 d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1579 dim_vector dv = dims ();
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1580
4765 e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1581 dim_vector a_dv = a.dims ();
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1582
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1583 int n = a_dv.length ();
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1584
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1585 if (n == dimensions.length ())
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1586 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1587 Array<octave_idx_type> a_ra_idx (a_dv.length (), 0);
4765 e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1588
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1589 a_ra_idx.elem (0) = r;
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1590 a_ra_idx.elem (1) = c;
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1591
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1592 for (int i = 0; i < n; i++)
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1593 {
4806 d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1594 if (a_ra_idx(i) < 0 \|\| (a_ra_idx(i) + a_dv(i)) > dv(i))
4765 e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1595 {
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1596 (*current_liboctave_error_handler)
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1597 ("Array<T>::insert: range error for insert");
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1598 return *this;
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1599 }
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1600 }
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1601
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1602 octave_idx_type n_elt = a.numel ();
4806 d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1603
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1604 const T *a_data = a.data ();
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1605
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1606 octave_idx_type iidx = 0;
4806 d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1607
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1608 octave_idx_type a_rows = a_dv(0);
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1609
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1610 octave_idx_type this_rows = dv(0);
4806 d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1611
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1612 octave_idx_type numel_page = a_dv(0) * a_dv(1);
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1613
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1614 octave_idx_type count_pages = 0;
4806 d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1615
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1616 for (octave_idx_type i = 0; i < n_elt; i++)
4765 e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1617 {
4806 d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1618 if (i != 0 && i % a_rows == 0)
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1619 iidx += (this_rows - a_rows);
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1620
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1621 if (i % numel_page == 0)
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1622 iidx = c * dv(0) + r + dv(0) * dv(1) * count_pages++;
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1623
d3bd9c04147f [project @ 2004-03-02 05:12:32 by jwe] jwe parents: 4796 diff changeset	1624 elem (iidx++) = a_data[i];
4765 e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1625 }
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1626 }
4765 e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1627 else
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1628 (*current_liboctave_error_handler)
e941e1470d7b [project @ 2004-02-16 05:56:50 by jwe] jwe parents: 4762 diff changeset	1629 ("Array<T>::insert: invalid indexing operation");
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1630
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1631 return *this;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1632 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1633
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1634 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1635 Array<T>&
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1636 Array<T>::insert (const Array<T>& a, const Array<octave_idx_type>& ra_idx)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1637 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1638 octave_idx_type n = ra_idx.length ();
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1639
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1640 if (n == dimensions.length ())
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1641 {
4915 c638c144d4da [project @ 2004-07-23 19:01:22 by jwe] jwe parents: 4898 diff changeset	1642 dim_vector dva = a.dims ();
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe] jwe parents: 4898 diff changeset	1643 dim_vector dv = dims ();
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe] jwe parents: 4898 diff changeset	1644 int len_a = dva.length ();
5120 eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1645 int non_full_dim = 0;
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1646
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1647 for (octave_idx_type i = 0; i < n; i++)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1648 {
4915 c638c144d4da [project @ 2004-07-23 19:01:22 by jwe] jwe parents: 4898 diff changeset	1649 if (ra_idx(i) < 0 \|\| (ra_idx(i) +
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe] jwe parents: 4898 diff changeset	1650 (i < len_a ? dva(i) : 1)) > dimensions(i))
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1651 {
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1652 (*current_liboctave_error_handler)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1653 ("Array<T>::insert: range error for insert");
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1654 return *this;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1655 }
5120 eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1656
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1657 if (dv(i) != (i < len_a ? dva(i) : 1))
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1658 non_full_dim++;
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1659 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1660
4915 c638c144d4da [project @ 2004-07-23 19:01:22 by jwe] jwe parents: 4898 diff changeset	1661 if (dva.numel ())
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe] jwe parents: 4898 diff changeset	1662 {
5120 eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1663 if (non_full_dim < 2)
4915 c638c144d4da [project @ 2004-07-23 19:01:22 by jwe] jwe parents: 4898 diff changeset	1664 {
5120 eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1665 // Special case for fast concatenation
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1666 const T *a_data = a.data ();
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1667 octave_idx_type numel_to_move = 1;
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1668 octave_idx_type skip = 0;
5120 eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1669 for (int i = 0; i < len_a; i++)
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1670 if (ra_idx(i) == 0 && dva(i) == dv(i))
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1671 numel_to_move *= dva(i);
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1672 else
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1673 {
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1674 skip = numel_to_move * (dv(i) - dva(i));
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1675 numel_to_move *= dva(i);
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1676 break;
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1677 }
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1678
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1679 octave_idx_type jidx = ra_idx(n-1);
5120 eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1680 for (int i = n-2; i >= 0; i--)
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1681 {
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1682 jidx *= dv(i);
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1683 jidx += ra_idx(i);
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1684 }
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1685
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1686 octave_idx_type iidx = 0;
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1687 octave_idx_type moves = dva.numel () / numel_to_move;
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1688 for (octave_idx_type i = 0; i < moves; i++)
5120 eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1689 {
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1690 for (octave_idx_type j = 0; j < numel_to_move; j++)
5120 eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1691 elem (jidx++) = a_data[iidx++];
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1692 jidx += skip;
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1693 }
4915 c638c144d4da [project @ 2004-07-23 19:01:22 by jwe] jwe parents: 4898 diff changeset	1694 }
5120 eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1695 else
4915 c638c144d4da [project @ 2004-07-23 19:01:22 by jwe] jwe parents: 4898 diff changeset	1696 {
5120 eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1697 // Generic code
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1698 const T *a_data = a.data ();
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1699 int nel = a.numel ();
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1700 Array<octave_idx_type> a_idx (n, 0);
5120 eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1701
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1702 for (int i = 0; i < nel; i++)
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1703 {
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1704 int iidx = a_idx(n-1) + ra_idx(n-1);
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1705 for (int j = n-2; j >= 0; j--)
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1706 {
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1707 iidx *= dv(j);
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1708 iidx += a_idx(j) + ra_idx(j);
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1709 }
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1710
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1711 elem (iidx) = a_data[i];
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1712
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1713 increment_index (a_idx, dva);
eb900c53cdb7 [project @ 2005-01-26 22:08:37 by jwe] jwe parents: 5108 diff changeset	1714 }
4915 c638c144d4da [project @ 2004-07-23 19:01:22 by jwe] jwe parents: 4898 diff changeset	1715 }
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe] jwe parents: 4898 diff changeset	1716 }
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1717 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1718 else
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1719 (*current_liboctave_error_handler)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1720 ("Array<T>::insert: invalid indexing operation");
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1721
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1722 return *this;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1723 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1724
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	1725
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1726 template <class T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1727 Array<T>
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1728 Array<T>::transpose (void) const
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1729 {
4548 820323598f4f [project @ 2003-10-26 03:16:42 by jwe] jwe parents: 4545 diff changeset	1730 assert (ndims () == 2);
820323598f4f [project @ 2003-10-26 03:16:42 by jwe] jwe parents: 4545 diff changeset	1731
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1732 octave_idx_type nr = dim1 ();
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1733 octave_idx_type nc = dim2 ();
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1734
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1735 if (nr >= 8 && nc >= 8)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1736 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1737 Array<T> result (dim_vector (nc, nr));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1738
9121 bb62bc406ea7 reuse fast blocked transpose implementation from rec_permute_helper in Array<T>::transpose Jaroslav Hajek <highegg@gmail.com> parents: 9100 diff changeset	1739 // Reuse the implementation used for permuting.
bb62bc406ea7 reuse fast blocked transpose implementation from rec_permute_helper in Array<T>::transpose Jaroslav Hajek <highegg@gmail.com> parents: 9100 diff changeset	1740
bb62bc406ea7 reuse fast blocked transpose implementation from rec_permute_helper in Array<T>::transpose Jaroslav Hajek <highegg@gmail.com> parents: 9100 diff changeset	1741 rec_permute_helper::blk_trans (data (), result.fortran_vec (), nr, nc);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1742
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1743 return result;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1744 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1745 else if (nr > 1 && nc > 1)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1746 {
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1747 Array<T> result (dim_vector (nc, nr));
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1748
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1749 for (octave_idx_type j = 0; j < nc; j++)
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5265 diff changeset	1750 for (octave_idx_type i = 0; i < nr; i++)
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1751 result.xelem (j, i) = xelem (i, j);
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1752
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1753 return result;
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1754 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1755 else
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1756 {
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8302 diff changeset	1757 // Fast transpose for vectors and empty matrices.
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1758 return Array<T> (*this, dim_vector (nc, nr));
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1759 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1760 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1761
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1762 template <class T>
8028 f0fbf47c914c avoid null pointer call in Array<T>::hermitian Jaroslav Hajek <highegg@gmail.com> parents: 7796 diff changeset	1763 static T
f0fbf47c914c avoid null pointer call in Array<T>::hermitian Jaroslav Hajek <highegg@gmail.com> parents: 7796 diff changeset	1764 no_op_fcn (const T& x)
f0fbf47c914c avoid null pointer call in Array<T>::hermitian Jaroslav Hajek <highegg@gmail.com> parents: 7796 diff changeset	1765 {
f0fbf47c914c avoid null pointer call in Array<T>::hermitian Jaroslav Hajek <highegg@gmail.com> parents: 7796 diff changeset	1766 return x;
f0fbf47c914c avoid null pointer call in Array<T>::hermitian Jaroslav Hajek <highegg@gmail.com> parents: 7796 diff changeset	1767 }
f0fbf47c914c avoid null pointer call in Array<T>::hermitian Jaroslav Hajek <highegg@gmail.com> parents: 7796 diff changeset	1768
f0fbf47c914c avoid null pointer call in Array<T>::hermitian Jaroslav Hajek <highegg@gmail.com> parents: 7796 diff changeset	1769 template <class T>
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1770 Array<T>
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1771 Array<T>::hermitian (T (*fcn) (const T&)) const
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1772 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1773 assert (ndims () == 2);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1774
8028 f0fbf47c914c avoid null pointer call in Array<T>::hermitian Jaroslav Hajek <highegg@gmail.com> parents: 7796 diff changeset	1775 if (! fcn)
f0fbf47c914c avoid null pointer call in Array<T>::hermitian Jaroslav Hajek <highegg@gmail.com> parents: 7796 diff changeset	1776 fcn = no_op_fcn<T>;
f0fbf47c914c avoid null pointer call in Array<T>::hermitian Jaroslav Hajek <highegg@gmail.com> parents: 7796 diff changeset	1777
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1778 octave_idx_type nr = dim1 ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1779 octave_idx_type nc = dim2 ();
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1780
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1781 if (nr >= 8 && nc >= 8)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1782 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1783 Array<T> result (dim_vector (nc, nr));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1784
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1785 // Blocked transpose to attempt to avoid cache misses.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1786
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1787 // Don't use OCTAVE_LOCAL_BUFFER here as it doesn't work with bool
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1788 // on some compilers.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1789 T buf[64];
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1790
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1791 octave_idx_type ii = 0, jj;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1792 for (jj = 0; jj < (nc - 8 + 1); jj += 8)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1793 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1794 for (ii = 0; ii < (nr - 8 + 1); ii += 8)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1795 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1796 // Copy to buffer
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1797 for (octave_idx_type j = jj, k = 0, idxj = jj * nr;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1798 j < jj + 8; j++, idxj += nr)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1799 for (octave_idx_type i = ii; i < ii + 8; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1800 buf[k++] = xelem (i + idxj);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1801
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1802 // Copy from buffer
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1803 for (octave_idx_type i = ii, idxi = ii * nc; i < ii + 8;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1804 i++, idxi += nc)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1805 for (octave_idx_type j = jj, k = i - ii; j < jj + 8;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1806 j++, k+=8)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1807 result.xelem (j + idxi) = fcn (buf[k]);
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1808 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1809
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1810 if (ii < nr)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1811 for (octave_idx_type j = jj; j < jj + 8; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1812 for (octave_idx_type i = ii; i < nr; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1813 result.xelem (j, i) = fcn (xelem (i, j));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1814 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1815
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1816 for (octave_idx_type j = jj; j < nc; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1817 for (octave_idx_type i = 0; i < nr; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1818 result.xelem (j, i) = fcn (xelem (i, j));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1819
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1820 return result;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1821 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1822 else
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1823 {
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1824 Array<T> result (dim_vector (nc, nr));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1825
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1826 for (octave_idx_type j = 0; j < nc; j++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1827 for (octave_idx_type i = 0; i < nr; i++)
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1828 result.xelem (j, i) = fcn (xelem (i, j));
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1829
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1830 return result;
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1831 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1832 }
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1833
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1834 /*
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1835
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1836 %% Tranpose tests for matrices of the tile size and plus or minus a row
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1837 %% and with four tiles.
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1838
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1839 %!shared m7, mt7, m8, mt8, m9, mt9
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1840 %! m7 = reshape (1 : 7*8, 8, 7);
7796 762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1841 %! mt7 = [1:8; 9:16; 17:24; 25:32; 33:40; 41:48; 49:56];
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1842 %! m8 = reshape (1 : 8*8, 8, 8);
7796 762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1843 %! mt8 = mt8 = [mt7; 57:64];
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1844 %! m9 = reshape (1 : 9*8, 8, 9);
7796 762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1845 %! mt9 = [mt8; 65:72];
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1846
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1847 %!assert(m7', mt7)
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1848 %!assert((1im7).', 1i mt7)
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1849 %!assert((1im7)', conj (1i mt7))
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1850 %!assert(m8', mt8)
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1851 %!assert((1im8).', 1i mt8)
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1852 %!assert((1im8)', conj (1i mt8))
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1853 %!assert(m9', mt9)
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1854 %!assert((1im9).', 1i mt9)
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1855 %!assert((1im9)', conj (1i mt9))
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1856 %!assert([m7, m8; m7, m8]', [mt7, mt7; mt8, mt8])
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1857 %!assert((1i[m7, m8; m7, m8]).', 1i [mt7, mt7; mt8, mt8])
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1858 %!assert((1i[m7, m8; m7, m8])', conj (1i [mt7, mt7; mt8, mt8]))
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1859 %!assert([m8, m8; m8, m8]', [mt8, mt8; mt8, mt8])
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1860 %!assert((1i[m8, m8; m8, m8]).', 1i [mt8, mt8; mt8, mt8])
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1861 %!assert((1i[m8, m8; m8, m8])', conj (1i [mt8, mt8; mt8, mt8]))
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1862 %!assert([m9, m8; m9, m8]', [mt9, mt9; mt8, mt8])
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1863 %!assert((1i[m9, m8; m9, m8]).', 1i [mt9, mt9; mt8, mt8])
762801c50b21 Fix tests for transpose in Array.cc David Bateman <dbateman@free.fr> parents: 7789 diff changeset	1864 %!assert((1i[m9, m8; m9, m8])', conj (1i [mt9, mt9; mt8, mt8]))
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1865
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1866 */
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1867
82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7717 diff changeset	1868 template <class T>
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1869 T *
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1870 Array<T>::fortran_vec (void)
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1871 {
6881 cd2c6a69a70d [project @ 2007-09-07 21:48:09 by jwe] jwe parents: 6867 diff changeset	1872 make_unique ();
cd2c6a69a70d [project @ 2007-09-07 21:48:09 by jwe] jwe parents: 6867 diff changeset	1873
8523 ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	1874 return slice_data;
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1875 }
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1876
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	1877 template <class T>
3933 f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe] jwe parents: 3657 diff changeset	1878 void
4517 b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1879 Array<T>::maybe_delete_dims (void)
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1880 {
4587 7b957b442818 [project @ 2003-11-10 15:50:39 by jwe] jwe parents: 4586 diff changeset	1881 int nd = dimensions.length ();
4517 b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1882
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1883 dim_vector new_dims (1, 1);
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1884
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1885 bool delete_dims = true;
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1886
4587 7b957b442818 [project @ 2003-11-10 15:50:39 by jwe] jwe parents: 4586 diff changeset	1887 for (int i = nd - 1; i >= 0; i--)
4517 b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1888 {
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1889 if (delete_dims)
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1890 {
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1891 if (dimensions(i) != 1)
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1892 {
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1893 delete_dims = false;
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1894
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1895 new_dims = dim_vector (i + 1, dimensions(i));
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1896 }
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1897 }
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1898 else
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1899 new_dims(i) = dimensions(i);
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1900 }
4530 e8d87fefd144 [project @ 2003-10-07 04:02:04 by jwe] jwe parents: 4518 diff changeset	1901
4587 7b957b442818 [project @ 2003-11-10 15:50:39 by jwe] jwe parents: 4586 diff changeset	1902 if (nd != new_dims.length ())
4517 b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1903 dimensions = new_dims;
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1904 }
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1905
8700 314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	1906 // Non-real types don't have NaNs.
4517 b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	1907 template <class T>
8725 d5af326a3ede [mq]: sort-traits John W. Eaton <jwe@octave.org> parents: 8721 diff changeset	1908 inline bool
d5af326a3ede [mq]: sort-traits John W. Eaton <jwe@octave.org> parents: 8721 diff changeset	1909 sort_isnan (typename ref_param<T>::type)
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1910 {
8700 314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	1911 return false;
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1912 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1913
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1914 template <class T>
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1915 Array<T>
9725 aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	1916 Array<T>::sort (int dim, sortmode mode) const
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1917 {
8721 e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	1918 if (dim < 0 \|\| dim >= ndims ())
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	1919 {
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	1920 (*current_liboctave_error_handler)
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	1921 ("sort: invalid dimension");
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	1922 return Array<T> ();
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	1923 }
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	1924
8651 ea8e65ca234f reduce memory usage in sorting Jaroslav Hajek <highegg@gmail.com> parents: 8580 diff changeset	1925 Array<T> m (dims ());
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1926
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1927 dim_vector dv = m.dims ();
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1928
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1929 if (m.length () < 1)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1930 return m;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1931
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1932 octave_idx_type ns = dv(dim);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1933 octave_idx_type iter = dv.numel () / ns;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1934 octave_idx_type stride = 1;
8505 124dd27bedae Array.cc: style fixes John W. Eaton <jwe@octave.org> parents: 8410 diff changeset	1935
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1936 for (int i = 0; i < dim; i++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1937 stride *= dv(i);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1938
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1939 T *v = m.fortran_vec ();
8651 ea8e65ca234f reduce memory usage in sorting Jaroslav Hajek <highegg@gmail.com> parents: 8580 diff changeset	1940 const T *ov = data ();
ea8e65ca234f reduce memory usage in sorting Jaroslav Hajek <highegg@gmail.com> parents: 8580 diff changeset	1941
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1942 octave_sort<T> lsort;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1943
8721 e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	1944 if (mode)
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	1945 lsort.set_compare (mode);
7463 2467639bd8c0 eliminate UNDEFINED sort mode John W. Eaton <jwe@octave.org> parents: 7443 diff changeset	1946 else
8721 e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	1947 return m;
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1948
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1949 if (stride == 1)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1950 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1951 for (octave_idx_type j = 0; j < iter; j++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1952 {
8700 314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	1953 // copy and partition out NaNs.
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	1954 // FIXME: impact on integer types noticeable?
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	1955 octave_idx_type kl = 0, ku = ns;
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	1956 for (octave_idx_type i = 0; i < ns; i++)
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	1957 {
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	1958 T tmp = ov[i];
8725 d5af326a3ede [mq]: sort-traits John W. Eaton <jwe@octave.org> parents: 8721 diff changeset	1959 if (sort_isnan<T> (tmp))
8700 314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	1960 v[--ku] = tmp;
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	1961 else
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	1962 v[kl++] = tmp;
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	1963 }
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	1964
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	1965 // sort.
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	1966 lsort.sort (v, kl);
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	1967
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	1968 if (ku < ns)
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	1969 {
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	1970 // NaNs are in reverse order
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	1971 std::reverse (v + ku, v + ns);
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	1972 if (mode == DESCENDING)
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	1973 std::rotate (v, v + ku, v + ns);
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	1974 }
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	1975
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1976 v += ns;
8651 ea8e65ca234f reduce memory usage in sorting Jaroslav Hajek <highegg@gmail.com> parents: 8580 diff changeset	1977 ov += ns;
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1978 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1979 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1980 else
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1981 {
8700 314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	1982 OCTAVE_LOCAL_BUFFER (T, buf, ns);
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1983
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1984 for (octave_idx_type j = 0; j < iter; j++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1985 {
8505 124dd27bedae Array.cc: style fixes John W. Eaton <jwe@octave.org> parents: 8410 diff changeset	1986 octave_idx_type offset = j;
124dd27bedae Array.cc: style fixes John W. Eaton <jwe@octave.org> parents: 8410 diff changeset	1987 octave_idx_type offset2 = 0;
124dd27bedae Array.cc: style fixes John W. Eaton <jwe@octave.org> parents: 8410 diff changeset	1988
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1989 while (offset >= stride)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1990 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1991 offset -= stride;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1992 offset2++;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1993 }
8505 124dd27bedae Array.cc: style fixes John W. Eaton <jwe@octave.org> parents: 8410 diff changeset	1994
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1995 offset += offset2 * stride * ns;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	1996
8700 314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	1997 // gather and partition out NaNs.
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	1998 // FIXME: impact on integer types noticeable?
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	1999 octave_idx_type kl = 0, ku = ns;
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2000 for (octave_idx_type i = 0; i < ns; i++)
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2001 {
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2002 T tmp = ov[i*stride + offset];
8725 d5af326a3ede [mq]: sort-traits John W. Eaton <jwe@octave.org> parents: 8721 diff changeset	2003 if (sort_isnan<T> (tmp))
8700 314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2004 buf[--ku] = tmp;
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2005 else
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2006 buf[kl++] = tmp;
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2007 }
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2008
8700 314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2009 // sort.
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2010 lsort.sort (buf, kl);
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2011
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2012 if (ku < ns)
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2013 {
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2014 // NaNs are in reverse order
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2015 std::reverse (buf + ku, buf + ns);
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2016 if (mode == DESCENDING)
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2017 std::rotate (buf, buf + ku, buf + ns);
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2018 }
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2019
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2020 // scatter.
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2021 for (octave_idx_type i = 0; i < ns; i++)
8700 314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2022 v[i*stride + offset] = buf[i];
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2023 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2024 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2025
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2026 return m;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2027 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2028
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2029 template <class T>
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2030 Array<T>
9725 aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2031 Array<T>::sort (Array<octave_idx_type> &sidx, int dim,
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2032 sortmode mode) const
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2033 {
8721 e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2034 if (dim < 0 \|\| dim >= ndims ())
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2035 {
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2036 (*current_liboctave_error_handler)
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2037 ("sort: invalid dimension");
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2038 return Array<T> ();
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2039 }
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2040
8651 ea8e65ca234f reduce memory usage in sorting Jaroslav Hajek <highegg@gmail.com> parents: 8580 diff changeset	2041 Array<T> m (dims ());
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2042
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2043 dim_vector dv = m.dims ();
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2044
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2045 if (m.length () < 1)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2046 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2047 sidx = Array<octave_idx_type> (dv);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2048 return m;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2049 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2050
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2051 octave_idx_type ns = dv(dim);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2052 octave_idx_type iter = dv.numel () / ns;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2053 octave_idx_type stride = 1;
8505 124dd27bedae Array.cc: style fixes John W. Eaton <jwe@octave.org> parents: 8410 diff changeset	2054
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2055 for (int i = 0; i < dim; i++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2056 stride *= dv(i);
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2057
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2058 T *v = m.fortran_vec ();
8651 ea8e65ca234f reduce memory usage in sorting Jaroslav Hajek <highegg@gmail.com> parents: 8580 diff changeset	2059 const T *ov = data ();
ea8e65ca234f reduce memory usage in sorting Jaroslav Hajek <highegg@gmail.com> parents: 8580 diff changeset	2060
8700 314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2061 octave_sort<T> lsort;
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2062
8700 314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2063 sidx = Array<octave_idx_type> (dv);
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2064 octave_idx_type *vi = sidx.fortran_vec ();
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2065
8721 e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2066 if (mode)
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2067 lsort.set_compare (mode);
7463 2467639bd8c0 eliminate UNDEFINED sort mode John W. Eaton <jwe@octave.org> parents: 7443 diff changeset	2068 else
8721 e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2069 return m;
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2070
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2071 if (stride == 1)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2072 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2073 for (octave_idx_type j = 0; j < iter; j++)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2074 {
8700 314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2075 // copy and partition out NaNs.
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2076 // FIXME: impact on integer types noticeable?
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2077 octave_idx_type kl = 0, ku = ns;
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2078 for (octave_idx_type i = 0; i < ns; i++)
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2079 {
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2080 T tmp = ov[i];
8725 d5af326a3ede [mq]: sort-traits John W. Eaton <jwe@octave.org> parents: 8721 diff changeset	2081 if (sort_isnan<T> (tmp))
8700 314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2082 {
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2083 --ku;
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2084 v[ku] = tmp;
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2085 vi[ku] = i;
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2086 }
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2087 else
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2088 {
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2089 v[kl] = tmp;
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2090 vi[kl] = i;
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2091 kl++;
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2092 }
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2093 }
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2094
8700 314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2095 // sort.
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2096 lsort.sort (v, vi, kl);
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2097
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2098 if (ku < ns)
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2099 {
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2100 // NaNs are in reverse order
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2101 std::reverse (v + ku, v + ns);
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2102 std::reverse (vi + ku, vi + ns);
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2103 if (mode == DESCENDING)
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2104 {
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2105 std::rotate (v, v + ku, v + ns);
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2106 std::rotate (vi, vi + ku, vi + ns);
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2107 }
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2108 }
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2109
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2110 v += ns;
8700 314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2111 vi += ns;
8651 ea8e65ca234f reduce memory usage in sorting Jaroslav Hajek <highegg@gmail.com> parents: 8580 diff changeset	2112 ov += ns;
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2113 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2114 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2115 else
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2116 {
8700 314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2117 OCTAVE_LOCAL_BUFFER (T, buf, ns);
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2118 OCTAVE_LOCAL_BUFFER (octave_idx_type, bufi, ns);
8651 ea8e65ca234f reduce memory usage in sorting Jaroslav Hajek <highegg@gmail.com> parents: 8580 diff changeset	2119
8700 314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2120 for (octave_idx_type j = 0; j < iter; j++)
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2121 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2122 octave_idx_type offset = j;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2123 octave_idx_type offset2 = 0;
8505 124dd27bedae Array.cc: style fixes John W. Eaton <jwe@octave.org> parents: 8410 diff changeset	2124
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2125 while (offset >= stride)
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2126 {
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2127 offset -= stride;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2128 offset2++;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2129 }
8505 124dd27bedae Array.cc: style fixes John W. Eaton <jwe@octave.org> parents: 8410 diff changeset	2130
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2131 offset += offset2 * stride * ns;
8700 314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2132
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2133 // gather and partition out NaNs.
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2134 // FIXME: impact on integer types noticeable?
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2135 octave_idx_type kl = 0, ku = ns;
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2136 for (octave_idx_type i = 0; i < ns; i++)
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2137 {
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2138 T tmp = ov[i*stride + offset];
8725 d5af326a3ede [mq]: sort-traits John W. Eaton <jwe@octave.org> parents: 8721 diff changeset	2139 if (sort_isnan<T> (tmp))
8700 314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2140 {
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2141 --ku;
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2142 buf[ku] = tmp;
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2143 bufi[ku] = i;
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2144 }
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2145 else
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2146 {
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2147 buf[kl] = tmp;
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2148 bufi[kl] = i;
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2149 kl++;
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2150 }
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2151 }
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2152
8700 314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2153 // sort.
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2154 lsort.sort (buf, bufi, kl);
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2155
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2156 if (ku < ns)
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2157 {
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2158 // NaNs are in reverse order
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2159 std::reverse (buf + ku, buf + ns);
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2160 std::reverse (bufi + ku, bufi + ns);
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2161 if (mode == DESCENDING)
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2162 {
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2163 std::rotate (buf, buf + ku, buf + ns);
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2164 std::rotate (bufi, bufi + ku, bufi + ns);
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2165 }
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2166 }
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2167
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2168 // scatter.
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2169 for (octave_idx_type i = 0; i < ns; i++)
8700 314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2170 v[i*stride + offset] = buf[i];
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2171 for (octave_idx_type i = 0; i < ns; i++)
314be237cd5b sorting optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8651 diff changeset	2172 vi[i*stride + offset] = bufi[i];
7433 402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2173 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2174 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2175
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2176 return m;
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2177 }
402168152bb9 [project @ 2008-01-31 18:59:09 by dbateman] dbateman parents: 7321 diff changeset	2178
7620 36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2179 template <class T>
8721 e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2180 sortmode
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2181 Array<T>::is_sorted (sortmode mode) const
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2182 {
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2183 if (nelem () <= 1)
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2184 return ASCENDING;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2185
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2186 const T lo = data (), hi = data () + nelem () - 1;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2187
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2188 // Check for NaNs at the beginning and end.
8725 d5af326a3ede [mq]: sort-traits John W. Eaton <jwe@octave.org> parents: 8721 diff changeset	2189 if (mode != ASCENDING && sort_isnan<T> (*lo))
8721 e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2190 {
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2191 mode = DESCENDING;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2192 do
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2193 ++lo;
8725 d5af326a3ede [mq]: sort-traits John W. Eaton <jwe@octave.org> parents: 8721 diff changeset	2194 while (lo < hi && sort_isnan<T> (*lo));
8721 e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2195 }
8725 d5af326a3ede [mq]: sort-traits John W. Eaton <jwe@octave.org> parents: 8721 diff changeset	2196 else if (mode != DESCENDING && sort_isnan<T> (*hi))
8721 e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2197 {
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2198 mode = ASCENDING;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2199 do
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2200 --hi;
8725 d5af326a3ede [mq]: sort-traits John W. Eaton <jwe@octave.org> parents: 8721 diff changeset	2201 while (lo < hi && sort_isnan<T> (*hi));
8721 e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2202 }
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2203
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2204 octave_sort<T> lsort;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2205
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2206 // If mode is still unknown, compare lo and hi
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2207 if (! mode)
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2208 {
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2209 if (lsort.descending_compare (lo, hi))
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2210 mode = DESCENDING;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2211 else if (lsort.ascending_compare (lo, hi))
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2212 mode = ASCENDING;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2213 else
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2214 mode = ASCENDING;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2215 }
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2216
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2217 lsort.set_compare (mode);
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2218
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2219 if (! lsort.is_sorted (lo, hi - lo + 1))
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2220 mode = UNSORTED;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2221
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2222 return mode;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2223 }
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2224
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2225 template <class T>
8725 d5af326a3ede [mq]: sort-traits John W. Eaton <jwe@octave.org> parents: 8721 diff changeset	2226 typename Array<T>::compare_fcn_type
d5af326a3ede [mq]: sort-traits John W. Eaton <jwe@octave.org> parents: 8721 diff changeset	2227 sortrows_comparator (sortmode mode, const Array<T>& /* a */,
d5af326a3ede [mq]: sort-traits John W. Eaton <jwe@octave.org> parents: 8721 diff changeset	2228 bool /* allow_chk */)
8721 e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2229 {
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2230 if (mode == ASCENDING)
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2231 return octave_sort<T>::ascending_compare;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2232 else if (mode == DESCENDING)
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2233 return octave_sort<T>::descending_compare;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2234 else
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2235 return 0;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2236 }
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2237
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2238 template <class T>
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2239 Array<octave_idx_type>
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2240 Array<T>::sort_rows_idx (sortmode mode) const
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2241 {
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2242 Array<octave_idx_type> idx;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2243
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2244 octave_sort<T> lsort;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2245
8725 d5af326a3ede [mq]: sort-traits John W. Eaton <jwe@octave.org> parents: 8721 diff changeset	2246 lsort.set_compare (sortrows_comparator (mode, *this, true));
8721 e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2247
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2248 octave_idx_type r = rows (), c = cols ();
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2249
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2250 idx = Array<octave_idx_type> (r);
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2251
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2252 lsort.sort_rows (data (), idx.fortran_vec (), r, c);
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2253
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2254 return idx;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2255 }
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2256
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2257
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2258 template <class T>
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2259 sortmode
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2260 Array<T>::is_sorted_rows (sortmode mode) const
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2261 {
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2262 octave_sort<T> lsort;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2263
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2264 octave_idx_type r = rows (), c = cols ();
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2265
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2266 if (r <= 1 \|\| c == 0)
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2267 return mode ? mode : ASCENDING;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2268
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2269 if (! mode)
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2270 {
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2271 // Auto-detect mode.
8725 d5af326a3ede [mq]: sort-traits John W. Eaton <jwe@octave.org> parents: 8721 diff changeset	2272 compare_fcn_type compare
d5af326a3ede [mq]: sort-traits John W. Eaton <jwe@octave.org> parents: 8721 diff changeset	2273 = sortrows_comparator (ASCENDING, *this, false);
8721 e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2274
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2275 octave_idx_type i;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2276 for (i = 0; i < cols (); i++)
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2277 {
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2278 T l = elem (0, i), u = elem (rows () - 1, i);
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2279 if (compare (l, u))
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2280 {
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2281 if (mode == DESCENDING)
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2282 {
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2283 mode = UNSORTED;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2284 break;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2285 }
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2286 else
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2287 mode = ASCENDING;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2288 }
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2289 else if (compare (u, l))
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2290 {
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2291 if (mode == ASCENDING)
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2292 {
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2293 mode = UNSORTED;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2294 break;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2295 }
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2296 else
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2297 mode = DESCENDING;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2298 }
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2299 }
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2300 if (! mode && i == cols ())
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2301 mode = ASCENDING;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2302 }
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2303
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2304 if (mode)
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2305 {
8725 d5af326a3ede [mq]: sort-traits John W. Eaton <jwe@octave.org> parents: 8721 diff changeset	2306 lsort.set_compare (sortrows_comparator (mode, *this, false));
8721 e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2307
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2308 if (! lsort.is_sorted_rows (data (), r, c))
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2309 mode = UNSORTED;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2310 }
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2311
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2312 return mode;
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2313
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2314 }
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2315
8814 de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2316 // Do a binary lookup in a sorted array.
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2317 template <class T>
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2318 octave_idx_type
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2319 Array<T>::lookup (const T& value, sortmode mode) const
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2320 {
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2321 octave_idx_type n = numel ();
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2322 octave_sort<T> lsort;
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2323
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2324 if (mode == UNSORTED)
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2325 {
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2326 // auto-detect mode
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2327 if (n > 1 && lsort.descending_compare (elem (0), elem (n-1)))
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2328 mode = DESCENDING;
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2329 else
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2330 mode = ASCENDING;
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2331 }
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2332
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2333 lsort.set_compare (mode);
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2334
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2335 return lsort.lookup (data (), n, value);
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2336 }
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2337
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2338 // Ditto, but for an array of values, specializing on long runs.
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2339 // Adds optional offset to all indices.
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2340 template <class T>
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2341 Array<octave_idx_type>
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2342 Array<T>::lookup (const Array<T>& values, sortmode mode,
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2343 bool linf, bool rinf) const
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2344 {
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2345 octave_idx_type n = numel ();
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2346 octave_sort<T> lsort;
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2347 Array<octave_idx_type> idx (values.dims ());
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2348
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2349 if (mode == UNSORTED)
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2350 {
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2351 // auto-detect mode
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2352 if (n > 1 && lsort.descending_compare (elem (0), elem (n-1)))
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2353 mode = DESCENDING;
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2354 else
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2355 mode = ASCENDING;
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2356 }
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2357
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2358 lsort.set_compare (mode);
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2359
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2360 // set offset and shift size.
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2361 octave_idx_type offset = 0;
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2362
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2363 if (linf && n > 0)
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2364 {
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2365 offset++;
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2366 n--;
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2367 }
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2368 if (rinf && n > 0)
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2369 n--;
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2370
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2371 lsort.lookup (data () + offset, n, values.data (), values.numel (),
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2372 idx.fortran_vec (), offset);
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2373
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2374 return idx;
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2375 }
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2376
9025 484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2377 template <class T>
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2378 Array<octave_idx_type>
9341 9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2379 Array<T>::lookupm (const Array<T>& values, sortmode mode) const
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2380 {
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2381 octave_idx_type n = numel ();
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2382 octave_sort<T> lsort;
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2383 Array<octave_idx_type> idx (values.dims ());
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2384
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2385 if (mode == UNSORTED)
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2386 {
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2387 // auto-detect mode
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2388 if (n > 1 && lsort.descending_compare (elem (0), elem (n-1)))
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2389 mode = DESCENDING;
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2390 else
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2391 mode = ASCENDING;
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2392 }
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2393
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2394 lsort.set_compare (mode);
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2395
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2396 lsort.lookupm (data (), n, values.data (), values.numel (),
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2397 idx.fortran_vec ());
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2398
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2399 return idx;
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2400 }
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2401
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2402 template <class T>
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2403 Array<bool>
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2404 Array<T>::lookupb (const Array<T>& values, sortmode mode) const
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2405 {
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2406 octave_idx_type n = numel ();
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2407 octave_sort<T> lsort;
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2408 Array<bool> match (values.dims ());
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2409
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2410 if (mode == UNSORTED)
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2411 {
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2412 // auto-detect mode
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2413 if (n > 1 && lsort.descending_compare (elem (0), elem (n-1)))
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2414 mode = DESCENDING;
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2415 else
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2416 mode = ASCENDING;
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2417 }
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2418
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2419 lsort.set_compare (mode);
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2420
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2421 lsort.lookupb (data (), n, values.data (), values.numel (),
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2422 match.fortran_vec ());
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2423
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2424 return match;
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2425 }
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2426
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2427 template <class T>
9878 ead4f9c82a9a implement Array<T>::nnz Jaroslav Hajek <highegg@gmail.com> parents: 9840 diff changeset	2428 octave_idx_type
ead4f9c82a9a implement Array<T>::nnz Jaroslav Hajek <highegg@gmail.com> parents: 9840 diff changeset	2429 Array<T>::nnz (void) const
ead4f9c82a9a implement Array<T>::nnz Jaroslav Hajek <highegg@gmail.com> parents: 9840 diff changeset	2430 {
ead4f9c82a9a implement Array<T>::nnz Jaroslav Hajek <highegg@gmail.com> parents: 9840 diff changeset	2431 const T *src = data ();
ead4f9c82a9a implement Array<T>::nnz Jaroslav Hajek <highegg@gmail.com> parents: 9840 diff changeset	2432 octave_idx_type nel = nelem (), retval = 0;
ead4f9c82a9a implement Array<T>::nnz Jaroslav Hajek <highegg@gmail.com> parents: 9840 diff changeset	2433 const T zero = T ();
ead4f9c82a9a implement Array<T>::nnz Jaroslav Hajek <highegg@gmail.com> parents: 9840 diff changeset	2434 for (octave_idx_type i = 0; i < nel; i++)
ead4f9c82a9a implement Array<T>::nnz Jaroslav Hajek <highegg@gmail.com> parents: 9840 diff changeset	2435 if (src[i] != zero)
ead4f9c82a9a implement Array<T>::nnz Jaroslav Hajek <highegg@gmail.com> parents: 9840 diff changeset	2436 retval++;
ead4f9c82a9a implement Array<T>::nnz Jaroslav Hajek <highegg@gmail.com> parents: 9840 diff changeset	2437
ead4f9c82a9a implement Array<T>::nnz Jaroslav Hajek <highegg@gmail.com> parents: 9840 diff changeset	2438 return retval;
ead4f9c82a9a implement Array<T>::nnz Jaroslav Hajek <highegg@gmail.com> parents: 9840 diff changeset	2439 }
ead4f9c82a9a implement Array<T>::nnz Jaroslav Hajek <highegg@gmail.com> parents: 9840 diff changeset	2440
ead4f9c82a9a implement Array<T>::nnz Jaroslav Hajek <highegg@gmail.com> parents: 9840 diff changeset	2441 template <class T>
9341 9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2442 Array<octave_idx_type>
9025 484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2443 Array<T>::find (octave_idx_type n, bool backward) const
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2444 {
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2445 Array<octave_idx_type> retval;
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2446 const T *src = data ();
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2447 octave_idx_type nel = nelem ();
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2448 const T zero = T ();
9310 256c0db275b6 fix behavior of find Jaroslav Hajek <highegg@gmail.com> parents: 9237 diff changeset	2449 if (n < 0 \|\| n >= nel)
9025 484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2450 {
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2451 // We want all elements, which means we'll almost surely need
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2452 // to resize. So count first, then allocate array of exact size.
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2453 octave_idx_type cnt = 0;
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2454 for (octave_idx_type i = 0; i < nel; i++)
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2455 cnt += src[i] != zero;
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2456
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2457 retval = Array<octave_idx_type> (cnt);
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2458 octave_idx_type *dest = retval.fortran_vec ();
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2459 for (octave_idx_type i = 0; i < nel; i++)
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2460 if (src[i] != zero) *dest++ = i;
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2461 }
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2462 else
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2463 {
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2464 // We want a fixed max number of elements, usually small. So be
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2465 // optimistic, alloc the array in advance, and then resize if
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2466 // needed.
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2467 retval = Array<octave_idx_type> (n);
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2468 if (backward)
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2469 {
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2470 // Do the search as a series of successive single-element searches.
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2471 octave_idx_type k = 0, l = nel - 1;
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2472 for (; k < n; k++)
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2473 {
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2474 for (;l >= 0 && src[l] == zero; l--) ;
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2475 if (l >= 0)
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2476 retval(k) = l--;
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2477 else
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2478 break;
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2479 }
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2480 if (k < n)
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2481 retval.resize (k);
9310 256c0db275b6 fix behavior of find Jaroslav Hajek <highegg@gmail.com> parents: 9237 diff changeset	2482 octave_idx_type *rdata = retval.fortran_vec ();
256c0db275b6 fix behavior of find Jaroslav Hajek <highegg@gmail.com> parents: 9237 diff changeset	2483 std::reverse (rdata, rdata + k);
9025 484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2484 }
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2485 else
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2486 {
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2487 // Do the search as a series of successive single-element searches.
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2488 octave_idx_type k = 0, l = 0;
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2489 for (; k < n; k++)
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2490 {
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2491 for (;l != nel && src[l] == zero; l++) ;
9029 2df28ad88b0e small fix in Array::find Jaroslav Hajek <highegg@gmail.com> parents: 9025 diff changeset	2492 if (l != nel)
9025 484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2493 retval(k) = l++;
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2494 else
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2495 break;
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2496 }
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2497 if (k < n)
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2498 retval.resize (k);
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2499 }
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2500 }
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2501
9046 88bf56bbccca make Array::find already return Matlab-compatible dimensions Jaroslav Hajek <highegg@gmail.com> parents: 9029 diff changeset	2502 // Fixup return dimensions, for Matlab compatibility.
88bf56bbccca make Array::find already return Matlab-compatible dimensions Jaroslav Hajek <highegg@gmail.com> parents: 9029 diff changeset	2503 // find(zeros(0,0)) -> zeros(0,0)
88bf56bbccca make Array::find already return Matlab-compatible dimensions Jaroslav Hajek <highegg@gmail.com> parents: 9029 diff changeset	2504 // find(zeros(1,0)) -> zeros(1,0)
88bf56bbccca make Array::find already return Matlab-compatible dimensions Jaroslav Hajek <highegg@gmail.com> parents: 9029 diff changeset	2505 // find(zeros(0,1)) -> zeros(0,1)
88bf56bbccca make Array::find already return Matlab-compatible dimensions Jaroslav Hajek <highegg@gmail.com> parents: 9029 diff changeset	2506 // find(zeros(0,X)) -> zeros(0,1)
88bf56bbccca make Array::find already return Matlab-compatible dimensions Jaroslav Hajek <highegg@gmail.com> parents: 9029 diff changeset	2507 // find(zeros(1,1)) -> zeros(0,0) !!!! WHY?
88bf56bbccca make Array::find already return Matlab-compatible dimensions Jaroslav Hajek <highegg@gmail.com> parents: 9029 diff changeset	2508 // find(zeros(0,1,0)) -> zeros(0,0)
88bf56bbccca make Array::find already return Matlab-compatible dimensions Jaroslav Hajek <highegg@gmail.com> parents: 9029 diff changeset	2509 // find(zeros(0,1,0,1)) -> zeros(0,0) etc
88bf56bbccca make Array::find already return Matlab-compatible dimensions Jaroslav Hajek <highegg@gmail.com> parents: 9029 diff changeset	2510
88bf56bbccca make Array::find already return Matlab-compatible dimensions Jaroslav Hajek <highegg@gmail.com> parents: 9029 diff changeset	2511 if ((numel () == 1 && retval.is_empty ())
88bf56bbccca make Array::find already return Matlab-compatible dimensions Jaroslav Hajek <highegg@gmail.com> parents: 9029 diff changeset	2512 \|\| (rows () == 0 && dims ().numel (1) == 0))
88bf56bbccca make Array::find already return Matlab-compatible dimensions Jaroslav Hajek <highegg@gmail.com> parents: 9029 diff changeset	2513 retval.dimensions = dim_vector ();
88bf56bbccca make Array::find already return Matlab-compatible dimensions Jaroslav Hajek <highegg@gmail.com> parents: 9029 diff changeset	2514 else if (rows () == 1 && ndims () == 2)
88bf56bbccca make Array::find already return Matlab-compatible dimensions Jaroslav Hajek <highegg@gmail.com> parents: 9029 diff changeset	2515 retval.dimensions = dim_vector (1, retval.length ());
88bf56bbccca make Array::find already return Matlab-compatible dimensions Jaroslav Hajek <highegg@gmail.com> parents: 9029 diff changeset	2516
9025 484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2517 return retval;
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2518 }
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2519
9725 aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2520 template <class T>
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2521 Array<T>
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2522 Array<T>::nth_element (const idx_vector& n, int dim) const
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2523 {
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2524 if (dim < 0 \|\| dim >= ndims ())
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2525 {
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2526 (*current_liboctave_error_handler)
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2527 ("nth_element: invalid dimension");
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2528 return Array<T> ();
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2529 }
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2530
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2531 dim_vector dv = dims ();
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2532 octave_idx_type ns = dv(dim);
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2533
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2534 octave_idx_type nn = n.length (ns);
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2535
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2536 dv(dim) = std::min (nn, ns);
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2537 dv.chop_trailing_singletons ();
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2538
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2539 Array<T> m (dv);
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2540
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2541 if (m.numel () == 0)
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2542 return m;
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2543
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2544 sortmode mode = UNSORTED;
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2545 octave_idx_type lo = 0;
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2546
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2547 switch (n.idx_class ())
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2548 {
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2549 case idx_vector::class_scalar:
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2550 mode = ASCENDING;
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2551 lo = n(0);
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2552 break;
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2553 case idx_vector::class_range:
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2554 {
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2555 octave_idx_type inc = n.increment ();
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2556 if (inc == 1)
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2557 {
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2558 mode = ASCENDING;
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2559 lo = n(0);
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2560 }
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2561 else if (inc == -1)
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2562 {
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2563 mode = DESCENDING;
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2564 lo = ns - 1 - n(0);
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2565 }
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2566 }
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2567 default:
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2568 break;
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2569 }
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2570
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2571 if (mode == UNSORTED)
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2572 {
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2573 (*current_liboctave_error_handler)
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2574 ("nth_element: n must be a scalar or a contiguous range");
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2575 return Array<T> ();
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2576 }
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2577
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2578 octave_idx_type up = lo + nn;
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2579
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2580 if (lo < 0 \|\| up > ns)
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2581 {
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2582 (*current_liboctave_error_handler)
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2583 ("nth_element: invalid element index");
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2584 return Array<T> ();
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2585 }
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2586
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2587 octave_idx_type iter = numel () / ns;
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2588 octave_idx_type stride = 1;
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2589
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2590 for (int i = 0; i < dim; i++)
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2591 stride *= dv(i);
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2592
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2593 T *v = m.fortran_vec ();
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2594 const T *ov = data ();
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2595
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2596 OCTAVE_LOCAL_BUFFER (T, buf, ns);
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2597
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2598 octave_sort<T> lsort;
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2599 lsort.set_compare (mode);
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2600
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2601 for (octave_idx_type j = 0; j < iter; j++)
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2602 {
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2603 octave_idx_type kl = 0, ku = ns;
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2604
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2605 if (stride == 1)
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2606 {
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2607 // copy without NaNs.
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2608 // FIXME: impact on integer types noticeable?
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2609 for (octave_idx_type i = 0; i < ns; i++)
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2610 {
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2611 T tmp = ov[i];
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2612 if (sort_isnan<T> (tmp))
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2613 buf[--ku] = tmp;
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2614 else
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2615 buf[kl++] = tmp;
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2616 }
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2617
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2618 ov += ns;
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2619 }
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2620 else
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2621 {
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2622 octave_idx_type offset = j % stride;
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2623 // copy without NaNs.
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2624 // FIXME: impact on integer types noticeable?
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2625 for (octave_idx_type i = 0; i < ns; i++)
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2626 {
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2627 T tmp = ov[offset + i*stride];
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2628 if (sort_isnan<T> (tmp))
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2629 buf[--ku] = tmp;
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2630 else
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2631 buf[kl++] = tmp;
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2632 }
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2633
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2634 if (offset == stride-1)
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2635 ov += ns*stride;
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2636 }
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2637
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2638 if (ku == ns)
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2639 lsort.nth_element (buf, ns, lo, up);
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2640 else if (mode == ASCENDING)
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2641 lsort.nth_element (buf, ku, lo, std::min (ku, up));
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2642 else
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2643 {
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2644 octave_idx_type nnan = ns - ku;
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2645 lsort.nth_element (buf, ku, std::max (lo - nnan, 0),
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2646 std::max (up - nnan, 0));
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2647 std::rotate (buf, buf + ku, buf + ns);
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2648 }
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2649
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2650 if (stride == 1)
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2651 {
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2652 for (octave_idx_type i = 0; i < nn; i++)
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2653 v[i] = buf[lo + i];
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2654
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2655 v += nn;
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2656 }
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2657 else
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2658 {
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2659 octave_idx_type offset = j % stride;
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2660 for (octave_idx_type i = 0; i < nn; i++)
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2661 v[offset + stride * i] = buf[lo + i];
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2662 if (offset == stride-1)
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2663 v += nn*stride;
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2664 }
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2665 }
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2666
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2667 return m;
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2668 }
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2669
9025 484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2670
9237 3c1762c7e787 Add missing xxx_API decoration and remove misplaced ones Michael Goffioul <michael.goffioul@gmail.com> parents: 9222 diff changeset	2671 #define INSTANTIATE_ARRAY_SORT(T) template class OCTAVE_API octave_sort<T>;
8721 e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2672
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2673 #define NO_INSTANTIATE_ARRAY_SORT(T) \
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2674 \
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2675 template <> Array<T> \
9725 aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2676 Array<T>::sort (int, sortmode) const { return *this; } \
8721 e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2677 \
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2678 template <> Array<T> \
9725 aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2679 Array<T>::sort (Array<octave_idx_type> &sidx, int, sortmode) const \
8721 e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2680 { sidx = Array<octave_idx_type> (); return *this; } \
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2681 \
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2682 template <> sortmode \
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2683 Array<T>::is_sorted (sortmode) const \
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2684 { return UNSORTED; } \
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2685 \
8725 d5af326a3ede [mq]: sort-traits John W. Eaton <jwe@octave.org> parents: 8721 diff changeset	2686 Array<T>::compare_fcn_type \
d5af326a3ede [mq]: sort-traits John W. Eaton <jwe@octave.org> parents: 8721 diff changeset	2687 sortrows_comparator (sortmode, const Array<T>&, bool) \
8721 e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2688 { return 0; } \
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2689 \
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2690 template <> Array<octave_idx_type> \
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2691 Array<T>::sort_rows_idx (sortmode) const \
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2692 { return Array<octave_idx_type> (); } \
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2693 \
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2694 template <> sortmode \
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2695 Array<T>::is_sorted_rows (sortmode) const \
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2696 { return UNSORTED; } \
8814 de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2697 \
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2698 template <> octave_idx_type \
9222 7bd406e12e4d instantiate Array<void > in liboctave Jaroslav Hajek <highegg@gmail.com>* parents: 9201 diff changeset	2699 Array<T>::lookup (T const &, sortmode) const \
8814 de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2700 { return 0; } \
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2701 template <> Array<octave_idx_type> \
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2702 Array<T>::lookup (const Array<T>&, sortmode, bool, bool) const \
de16ebeef93d improve lookup, provide Array<T>::lookup Jaroslav Hajek <highegg@gmail.com> parents: 8799 diff changeset	2703 { return Array<octave_idx_type> (); } \
9341 9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2704 template <> Array<octave_idx_type> \
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2705 Array<T>::lookupm (const Array<T>&, sortmode) const \
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2706 { return Array<octave_idx_type> (); } \
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2707 template <> Array<bool> \
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2708 Array<T>::lookupb (const Array<T>&, sortmode) const \
9fd5c56ce57a extend lookup capabilities Jaroslav Hajek <highegg@gmail.com> parents: 9310 diff changeset	2709 { return Array<bool> (); } \
9878 ead4f9c82a9a implement Array<T>::nnz Jaroslav Hajek <highegg@gmail.com> parents: 9840 diff changeset	2710 \
ead4f9c82a9a implement Array<T>::nnz Jaroslav Hajek <highegg@gmail.com> parents: 9840 diff changeset	2711 template <> octave_idx_type \
ead4f9c82a9a implement Array<T>::nnz Jaroslav Hajek <highegg@gmail.com> parents: 9840 diff changeset	2712 Array<T>::nnz (void) const\
ead4f9c82a9a implement Array<T>::nnz Jaroslav Hajek <highegg@gmail.com> parents: 9840 diff changeset	2713 { return 0; } \
9025 484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2714 template <> Array<octave_idx_type> \
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2715 Array<T>::find (octave_idx_type, bool) const\
484756d558d6 add Array<T>::find Jaroslav Hajek <highegg@gmail.com> parents: 9012 diff changeset	2716 { return Array<octave_idx_type> (); } \
9725 aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2717 \
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2718 template <> Array<T> \
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9678 diff changeset	2719 Array<T>::nth_element (const idx_vector&, int) const { return Array<T> (); } \
8721 e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2720
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2721
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2722 template <class T>
7620 36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2723 Array<T>
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2724 Array<T>::diag (octave_idx_type k) const
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2725 {
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2726 dim_vector dv = dims ();
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2727 octave_idx_type nd = dv.length ();
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2728 Array<T> d;
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2729
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2730 if (nd > 2)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2731 (*current_liboctave_error_handler) ("Matrix must be 2-dimensional");
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2732 else
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2733 {
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2734 octave_idx_type nnr = dv (0);
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2735 octave_idx_type nnc = dv (1);
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2736
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2737 if (nnr == 0 \|\| nnc == 0)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2738 ; // do nothing
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2739 else if (nnr != 1 && nnc != 1)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2740 {
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2741 if (k > 0)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2742 nnc -= k;
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2743 else if (k < 0)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2744 nnr += k;
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2745
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2746 if (nnr > 0 && nnc > 0)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2747 {
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2748 octave_idx_type ndiag = (nnr < nnc) ? nnr : nnc;
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2749
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2750 d.resize (dim_vector (ndiag, 1));
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2751
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2752 if (k > 0)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2753 {
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2754 for (octave_idx_type i = 0; i < ndiag; i++)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2755 d.xelem (i) = elem (i, i+k);
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2756 }
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2757 else if (k < 0)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2758 {
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2759 for (octave_idx_type i = 0; i < ndiag; i++)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2760 d.xelem (i) = elem (i-k, i);
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2761 }
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2762 else
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2763 {
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2764 for (octave_idx_type i = 0; i < ndiag; i++)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2765 d.xelem (i) = elem (i, i);
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2766 }
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2767 }
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2768 else
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2769 (*current_liboctave_error_handler)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2770 ("diag: requested diagonal out of range");
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2771 }
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2772 else if (nnr != 0 && nnc != 0)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2773 {
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2774 octave_idx_type roff = 0;
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2775 octave_idx_type coff = 0;
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2776 if (k > 0)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2777 {
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2778 roff = 0;
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2779 coff = k;
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2780 }
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2781 else if (k < 0)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2782 {
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2783 roff = -k;
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2784 coff = 0;
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2785 }
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2786
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2787 if (nnr == 1)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2788 {
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2789 octave_idx_type n = nnc + std::abs (k);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	2790 d = Array<T> (dim_vector (n, n), resize_fill_value ());
7620 36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2791
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2792 for (octave_idx_type i = 0; i < nnc; i++)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2793 d.xelem (i+roff, i+coff) = elem (0, i);
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2794 }
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2795 else
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2796 {
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2797 octave_idx_type n = nnr + std::abs (k);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 8179 diff changeset	2798 d = Array<T> (dim_vector (n, n), resize_fill_value ());
7620 36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2799
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2800 for (octave_idx_type i = 0; i < nnr; i++)
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2801 d.xelem (i+roff, i+coff) = elem (i, 0);
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2802 }
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2803 }
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2804 }
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2805
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2806 return d;
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2807 }
36594d5bbe13 Move diag function into the octave_value class David Bateman <dbateman@free.fr> parents: 7605 diff changeset	2808
4517 b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	2809 template <class T>
b4449b1193ac [project @ 2003-09-20 02:06:06 by jwe] jwe parents: 4513 diff changeset	2810 void
3933 f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe] jwe parents: 3657 diff changeset	2811 Array<T>::print_info (std::ostream& os, const std::string& prefix) const
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe] jwe parents: 3657 diff changeset	2812 {
8523 ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	2813 os << prefix << "rep address: " << rep << '\n'
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	2814 << prefix << "rep->len: " << rep->len << '\n'
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	2815 << prefix << "rep->data: " << static_cast<void *> (rep->data) << '\n'
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	2816 << prefix << "rep->count: " << rep->count << '\n'
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	2817 << prefix << "slice_data: " << static_cast<void *> (slice_data) << '\n'
ad3afaaa19c1 implement non-copying contiguous range indexing Jaroslav Hajek <highegg@gmail.com> parents: 8505 diff changeset	2818 << prefix << "slice_len: " << slice_len << '\n';
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	2819
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	2820 // 2D info:
508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	2821 //
4657 a585a2dfca6c [project @ 2003-11-25 01:30:09 by jwe] jwe parents: 4656 diff changeset	2822 // << pefix << "rows: " << rows () << "\n"
4513 508238e65af7 [project @ 2003-09-19 21:40:57 by jwe] jwe parents: 4192 diff changeset	2823 // << prefix << "cols: " << cols () << "\n";
3933 f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe] jwe parents: 3657 diff changeset	2824 }
f9ea3dcf58ee [project @ 2002-05-15 03:21:00 by jwe] jwe parents: 3657 diff changeset	2825
9201 472f0e22aa60 guard against implicit instantiation Jaroslav Hajek <highegg@gmail.com> parents: 9121 diff changeset	2826 template <class T>
472f0e22aa60 guard against implicit instantiation Jaroslav Hajek <highegg@gmail.com> parents: 9121 diff changeset	2827 void Array<T>::instantiation_guard ()
472f0e22aa60 guard against implicit instantiation Jaroslav Hajek <highegg@gmail.com> parents: 9121 diff changeset	2828 {
472f0e22aa60 guard against implicit instantiation Jaroslav Hajek <highegg@gmail.com> parents: 9121 diff changeset	2829 // This guards against accidental implicit instantiations.
472f0e22aa60 guard against implicit instantiation Jaroslav Hajek <highegg@gmail.com> parents: 9121 diff changeset	2830 // Array<T> instances should always be explicit and use INSTANTIATE_ARRAY.
472f0e22aa60 guard against implicit instantiation Jaroslav Hajek <highegg@gmail.com> parents: 9121 diff changeset	2831 T::__xXxXx__();
472f0e22aa60 guard against implicit instantiation Jaroslav Hajek <highegg@gmail.com> parents: 9121 diff changeset	2832 }
472f0e22aa60 guard against implicit instantiation Jaroslav Hajek <highegg@gmail.com> parents: 9121 diff changeset	2833
8721 e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2834 #define INSTANTIATE_ARRAY(T, API) \
9201 472f0e22aa60 guard against implicit instantiation Jaroslav Hajek <highegg@gmail.com> parents: 9121 diff changeset	2835 template <> void Array<T>::instantiation_guard () { } \
8721 e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2836 template class API Array<T>
e9cb742df9eb imported patch sort3.diff Jaroslav Hajek <highegg@gmail.com> parents: 8700 diff changeset	2837
9732 b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2838 // FIXME: is this used?
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2839
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2840 template <class T>
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2841 std::ostream&
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2842 operator << (std::ostream& os, const Array<T>& a)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2843 {
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2844 dim_vector a_dims = a.dims ();
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2845
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2846 int n_dims = a_dims.length ();
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2847
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2848 os << n_dims << "-dimensional array";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2849
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2850 if (n_dims)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2851 os << " (" << a_dims.str () << ")";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2852
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2853 os <<"\n\n";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2854
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2855 if (n_dims)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2856 {
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2857 os << "data:";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2858
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2859 Array<octave_idx_type> ra_idx (n_dims, 0);
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2860
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2861 // Number of times the first 2d-array is to be displayed.
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2862
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2863 octave_idx_type m = 1;
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2864 for (int i = 2; i < n_dims; i++)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2865 m *= a_dims(i);
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2866
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2867 if (m == 1)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2868 {
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2869 octave_idx_type rows = 0;
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2870 octave_idx_type cols = 0;
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2871
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2872 switch (n_dims)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2873 {
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2874 case 2:
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2875 rows = a_dims(0);
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2876 cols = a_dims(1);
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2877
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2878 for (octave_idx_type j = 0; j < rows; j++)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2879 {
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2880 ra_idx(0) = j;
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2881 for (octave_idx_type k = 0; k < cols; k++)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2882 {
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2883 ra_idx(1) = k;
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2884 os << " " << a.elem(ra_idx);
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2885 }
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2886 os << "\n";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2887 }
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2888 break;
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2889
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2890 default:
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2891 rows = a_dims(0);
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2892
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2893 for (octave_idx_type k = 0; k < rows; k++)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2894 {
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2895 ra_idx(0) = k;
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2896 os << " " << a.elem(ra_idx);
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2897 }
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2898 break;
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2899 }
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2900
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2901 os << "\n";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2902 }
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2903 else
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2904 {
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2905 octave_idx_type rows = a_dims(0);
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2906 octave_idx_type cols = a_dims(1);
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2907
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2908 for (int i = 0; i < m; i++)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2909 {
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2910 os << "\n(:,:,";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2911
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2912 for (int j = 2; j < n_dims - 1; j++)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2913 os << ra_idx(j) + 1 << ",";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2914
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2915 os << ra_idx(n_dims - 1) + 1 << ") = \n";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2916
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2917 for (octave_idx_type j = 0; j < rows; j++)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2918 {
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2919 ra_idx(0) = j;
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2920
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2921 for (octave_idx_type k = 0; k < cols; k++)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2922 {
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2923 ra_idx(1) = k;
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2924 os << " " << a.elem(ra_idx);
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2925 }
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2926
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2927 os << "\n";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2928 }
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2929
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2930 os << "\n";
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2931
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2932 if (i != m - 1)
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2933 increment_index (ra_idx, a_dims, 2);
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2934 }
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2935 }
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2936 }
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2937
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2938 return os;
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2939 }
b4fdfee405b5 remove ArrayN<T> + fix nonhom. diag-scalar ops Jaroslav Hajek <highegg@gmail.com> parents: 9731 diff changeset	2940
237 5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	2941 /*
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	2942 ;;; Local Variables: ***
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	2943 ;;; mode: C++ ***
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	2944 ;;; End: ***
5a9e23307fb0 [project @ 1993-11-30 20:23:04 by jwe] jwe parents: diff changeset	2945 */

Mercurial > hg > octave-nkf

annotate liboctave/Array.cc @ 9878:ead4f9c82a9a