octave-lyh: liboctave/idx-vector.h annotate

annotate liboctave/idx-vector.h @ 9725:aea3a3a950e1

implement nth_element

author	Jaroslav Hajek <highegg@gmail.com>
date	Wed, 14 Oct 2009 13:23:31 +0200
parents	a9b37bae1802
children	01f897d8a130

rev	line source
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	1 /*
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	2
7017 a1dbe9d80eee [project @ 2007-10-12 21:27:11 by jwe] jwe parents: 7016 diff changeset	3 Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 2000, 2002, 2003,
a1dbe9d80eee [project @ 2007-10-12 21:27:11 by jwe] jwe parents: 7016 diff changeset	4 2004, 2005, 2006, 2007 John W. Eaton
8920 eb63fbe60fab update copyright notices John W. Eaton <jwe@octave.org> parents: 8680 diff changeset	5 Copyright (C) 2008, 2009 Jaroslav Hajek
9601 a9b37bae1802 add a couple of missing copyright statements Jaroslav Hajek <highegg@gmail.com> parents: 9479 diff changeset	6 Copyright (C) 2009 VZLU Prague
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	7
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	8 This file is part of Octave.
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	9
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	10 Octave is free software; you can redistribute it and/or modify it
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	11 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: 6108 diff changeset	12 Free Software Foundation; either version 3 of the License, or (at your
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6108 diff changeset	13 option) any later version.
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	14
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	15 Octave is distributed in the hope that it will be useful, but WITHOUT
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	18 for more details.
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	19
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	20 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: 6108 diff changeset	21 along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6108 diff changeset	22 <http://www.gnu.org/licenses/>.
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	23
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	24 */
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	25
383 0b52c68ec81f [project @ 1994-03-09 21:19:44 by jwe] jwe parents: 240 diff changeset	26 #if !defined (octave_idx_vector_h)
0b52c68ec81f [project @ 1994-03-09 21:19:44 by jwe] jwe parents: 240 diff changeset	27 #define octave_idx_vector_h 1
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	28
8950 d865363208d6 include <iosfwd> instead of <iostream> in header files John W. Eaton <jwe@octave.org> parents: 8934 diff changeset	29 #include <cassert>
d865363208d6 include <iosfwd> instead of <iostream> in header files John W. Eaton <jwe@octave.org> parents: 8934 diff changeset	30
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	31 #include <algorithm>
8950 d865363208d6 include <iosfwd> instead of <iostream> in header files John W. Eaton <jwe@octave.org> parents: 8934 diff changeset	32 #include <iosfwd>
3503 d14c483b3c12 [project @ 2000-02-01 04:06:07 by jwe] jwe parents: 3145 diff changeset	33
4653 14ab7b05a572 [project @ 2003-11-24 05:02:46 by jwe] jwe parents: 4650 diff changeset	34 #include "dim-vector.h"
4938 703d97b89507 [project @ 2004-08-09 20:21:59 by jwe] jwe parents: 4653 diff changeset	35 #include "oct-inttypes.h"
8680 a2bcd96b9344 use allocators for idx_vector_rep subclasses Jaroslav Hajek <highegg@gmail.com> parents: 8384 diff changeset	36 #include "oct-alloc.h"
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	37
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	38 template<class T> class Array;
8384 a99b9113c58c optimize sparse bool indexing Jaroslav Hajek <highegg@gmail.com> parents: 8367 diff changeset	39 template<class T> class Sparse;
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	40 class Range;
4504 f6a61399bc5c [project @ 2003-09-09 17:48:00 by jwe] jwe parents: 4461 diff changeset	41
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	42 // Design rationale:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	43 // idx_vector is a reference-counting, polymorphic pointer, that can contain
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	44 // 4 types of index objects: a magic colon, a range, a scalar, or an index vector.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	45 // Polymorphic methods for single element access are provided, as well as
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	46 // templates implementing "early dispatch", i.e. hoisting the checks for index
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	47 // type out of loops.
164 e2c950dd96d2 [project @ 1993-10-18 19:32:00 by jwe] jwe parents: 1 diff changeset	48
453 393e95f46b51 [project @ 1994-06-06 00:05:20 by jwe] jwe parents: 434 diff changeset	49 class
6108 143b556ce725 [project @ 2006-10-27 01:45:54 by jwe] jwe parents: 5781 diff changeset	50 OCTAVE_API
453 393e95f46b51 [project @ 1994-06-06 00:05:20 by jwe] jwe parents: 434 diff changeset	51 idx_vector
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	52 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	53 public:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	54
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	55 enum idx_class_type
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	56 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	57 class_invalid = -1,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	58 class_colon = 0,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	59 class_range,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	60 class_scalar,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	61 class_vector
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	62 };
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	63
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	64 private:
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	65
8319 c374691576f6 Fix for MSVC compilation Michael Goffioul <michael.goffioul@gmail.com> parents: 8298 diff changeset	66 class OCTAVE_API idx_base_rep
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	67 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	68 public:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	69 idx_base_rep (void) : count (1), err (false) { }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	70
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	71 virtual ~idx_base_rep (void) { }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	72
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	73 // Non-range-checking element query.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	74 virtual octave_idx_type xelem (octave_idx_type i) const = 0;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	75
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	76 // Range-checking element query.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	77 virtual octave_idx_type checkelem (octave_idx_type i) const = 0;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	78
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	79 // Length of the index vector.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	80 virtual octave_idx_type length (octave_idx_type n) const = 0;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	81
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	82 // The maximum index + 1. The actual dimension is passed in.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	83 virtual octave_idx_type extent (octave_idx_type n) const = 0;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	84
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	85 // Index class.
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	86 virtual idx_class_type idx_class (void) const { return class_invalid; }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	87
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	88 // Sorts, maybe uniqifies, and returns a clone object pointer.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	89 virtual idx_base_rep *sort_uniq_clone (bool uniq = false) = 0;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	90
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	91 // Checks whether the index is colon or a range equivalent to colon.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	92 virtual bool is_colon_equiv (octave_idx_type) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	93 { return false; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	94
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	95 // The original dimensions of this object (used when subscribing by matrices).
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	96 virtual dim_vector orig_dimensions (void) const
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	97 { return dim_vector (); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	98
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	99 // i/o
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	100 virtual std::ostream& print (std::ostream& os) const = 0;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	101
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	102 int count;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	103
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	104 bool err;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	105
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	106 private:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	107
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	108 // No copying!
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	109 idx_base_rep (const idx_base_rep&);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	110 };
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	111
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	112 // The magic colon index.
8319 c374691576f6 Fix for MSVC compilation Michael Goffioul <michael.goffioul@gmail.com> parents: 8298 diff changeset	113 class OCTAVE_API idx_colon_rep : public idx_base_rep
1879 1b43d3c06c04 [project @ 1996-02-05 16:24:56 by jwe] jwe parents: 1560 diff changeset	114 {
1b43d3c06c04 [project @ 1996-02-05 16:24:56 by jwe] jwe parents: 1560 diff changeset	115 public:
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	116 idx_colon_rep (void) { }
1879 1b43d3c06c04 [project @ 1996-02-05 16:24:56 by jwe] jwe parents: 1560 diff changeset	117
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	118 idx_colon_rep (char c);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	119
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	120 octave_idx_type xelem (octave_idx_type i) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	121 { return i; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	122
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	123 octave_idx_type checkelem (octave_idx_type i) const;
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	124
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	125 octave_idx_type length (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	126 { return n; }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	127
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	128 octave_idx_type extent (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	129 { return n; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	130
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	131 idx_class_type idx_class (void) const { return class_colon; }
1879 1b43d3c06c04 [project @ 1996-02-05 16:24:56 by jwe] jwe parents: 1560 diff changeset	132
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	133 idx_base_rep *sort_uniq_clone (bool = false)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	134 { count++; return this; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	135
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	136 bool is_colon_equiv (octave_idx_type) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	137 { return true; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	138
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	139 std::ostream& print (std::ostream& os) const;
4938 703d97b89507 [project @ 2004-08-09 20:21:59 by jwe] jwe parents: 4653 diff changeset	140
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	141 private:
4938 703d97b89507 [project @ 2004-08-09 20:21:59 by jwe] jwe parents: 4653 diff changeset	142
8680 a2bcd96b9344 use allocators for idx_vector_rep subclasses Jaroslav Hajek <highegg@gmail.com> parents: 8384 diff changeset	143 DECLARE_OCTAVE_ALLOCATOR
a2bcd96b9344 use allocators for idx_vector_rep subclasses Jaroslav Hajek <highegg@gmail.com> parents: 8384 diff changeset	144
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	145 // No copying!
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	146 idx_colon_rep (const idx_colon_rep& idx);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	147 };
2386 4fc9fd1424a9 [project @ 1996-10-12 18:31:34 by jwe] jwe parents: 2356 diff changeset	148
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	149 // To distinguish the "direct" constructors that blindly trust the data.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	150 enum direct { DIRECT };
2828 92826d6e8bd9 [project @ 1997-03-25 23:41:41 by jwe] jwe parents: 2802 diff changeset	151
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	152 // The integer range index.
8319 c374691576f6 Fix for MSVC compilation Michael Goffioul <michael.goffioul@gmail.com> parents: 8298 diff changeset	153 class OCTAVE_API idx_range_rep : public idx_base_rep
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	154 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	155 public:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	156 idx_range_rep (octave_idx_type _start, octave_idx_type _len,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	157 octave_idx_type _step, direct)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	158 : idx_base_rep (), start(_start), len(_len), step(_step) { }
4938 703d97b89507 [project @ 2004-08-09 20:21:59 by jwe] jwe parents: 4653 diff changeset	159
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	160 idx_range_rep (void)
8298 7e87d3d76a56 fix extent query for empty ranges Jaroslav Hajek <highegg@gmail.com> parents: 8290 diff changeset	161 : start(0), len(0), step(1) { }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	162
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	163 // Zero-based constructor.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	164 idx_range_rep (octave_idx_type _start, octave_idx_type _limit,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	165 octave_idx_type _step);
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	166
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	167 idx_range_rep (const Range&);
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	168
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	169 octave_idx_type xelem (octave_idx_type i) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	170 { return start + i * step; }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	171
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	172 octave_idx_type checkelem (octave_idx_type i) const;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	173
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	174 octave_idx_type length (octave_idx_type) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	175 { return len; }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	176
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	177 octave_idx_type extent (octave_idx_type n) const
8298 7e87d3d76a56 fix extent query for empty ranges Jaroslav Hajek <highegg@gmail.com> parents: 8290 diff changeset	178 { return len ? std::max (n, (start + 1 + (step < 0 ? 0 : step * (len - 1)))) : n; }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	179
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	180 idx_class_type idx_class (void) const { return class_range; }
1879 1b43d3c06c04 [project @ 1996-02-05 16:24:56 by jwe] jwe parents: 1560 diff changeset	181
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	182 idx_base_rep *sort_uniq_clone (bool uniq = false);
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	183
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	184 bool is_colon_equiv (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	185 { return start == 0 && step == 1 && len == n; }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	186
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	187 dim_vector orig_dimensions (void) const
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	188 { return dim_vector (1, len); }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	189
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	190 octave_idx_type get_start (void) const { return start; }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	191
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	192 octave_idx_type get_step (void) const { return step; }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	193
3504 5eef8a2294bd [project @ 2000-02-01 10:06:51 by jwe] jwe parents: 3503 diff changeset	194 std::ostream& print (std::ostream& os) const;
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	195
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	196 private:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	197
8680 a2bcd96b9344 use allocators for idx_vector_rep subclasses Jaroslav Hajek <highegg@gmail.com> parents: 8384 diff changeset	198 DECLARE_OCTAVE_ALLOCATOR
a2bcd96b9344 use allocators for idx_vector_rep subclasses Jaroslav Hajek <highegg@gmail.com> parents: 8384 diff changeset	199
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	200 // No copying!
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	201 idx_range_rep (const idx_range_rep& idx);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	202
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	203 octave_idx_type start, len, step;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	204
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	205 };
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	206
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	207 // The integer scalar index.
8319 c374691576f6 Fix for MSVC compilation Michael Goffioul <michael.goffioul@gmail.com> parents: 8298 diff changeset	208 class OCTAVE_API idx_scalar_rep : public idx_base_rep
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	209 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	210 public:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	211 idx_scalar_rep (octave_idx_type i, direct)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	212 : data (i) { }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	213
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	214 idx_scalar_rep (void)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	215 : data (0) { }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	216
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	217 // Zero-based constructor.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	218 idx_scalar_rep (octave_idx_type i);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	219
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	220 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	221 idx_scalar_rep (T x);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	222
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	223 octave_idx_type xelem (octave_idx_type) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	224 { return data; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	225
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	226 octave_idx_type checkelem (octave_idx_type i) const;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	227
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	228 octave_idx_type length (octave_idx_type) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	229 { return 1; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	230
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	231 octave_idx_type extent (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	232 { return std::max (n, data + 1); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	233
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	234 idx_class_type idx_class (void) const { return class_scalar; }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	235
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	236 idx_base_rep *sort_uniq_clone (bool = false)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	237 { count++; return this; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	238
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	239 bool is_colon_equiv (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	240 { return n == 1 && data == 0; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	241
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	242 dim_vector orig_dimensions (void) const
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	243 { return dim_vector (1, 1); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	244
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	245 octave_idx_type get_data (void) const { return data; }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	246
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	247 std::ostream& print (std::ostream& os) const;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	248
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	249 private:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	250
8680 a2bcd96b9344 use allocators for idx_vector_rep subclasses Jaroslav Hajek <highegg@gmail.com> parents: 8384 diff changeset	251 DECLARE_OCTAVE_ALLOCATOR
a2bcd96b9344 use allocators for idx_vector_rep subclasses Jaroslav Hajek <highegg@gmail.com> parents: 8384 diff changeset	252
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	253 // No copying!
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	254 idx_scalar_rep (const idx_scalar_rep& idx);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	255
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	256 octave_idx_type data;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	257
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	258 };
4504 f6a61399bc5c [project @ 2003-09-09 17:48:00 by jwe] jwe parents: 4461 diff changeset	259
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	260 // The integer vector index.
8319 c374691576f6 Fix for MSVC compilation Michael Goffioul <michael.goffioul@gmail.com> parents: 8298 diff changeset	261 class OCTAVE_API idx_vector_rep : public idx_base_rep
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	262 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	263 public:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	264 // Direct constructor.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	265 idx_vector_rep (octave_idx_type *_data, octave_idx_type _len,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	266 octave_idx_type _ext, const dim_vector& od, direct)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	267 : data (_data), len (_len), ext (_ext), aowner (0), orig_dims (od) { }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	268
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	269 idx_vector_rep (void)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	270 : data (0), len (0), aowner (0)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	271 { }
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	272
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	273 // Zero-based constructor.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	274 idx_vector_rep (const Array<octave_idx_type>& inda);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	275
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	276 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	277 idx_vector_rep (const Array<T>&);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	278
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	279 idx_vector_rep (bool);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	280
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	281 idx_vector_rep (const Array<bool>&);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	282
8384 a99b9113c58c optimize sparse bool indexing Jaroslav Hajek <highegg@gmail.com> parents: 8367 diff changeset	283 idx_vector_rep (const Sparse<bool>&);
a99b9113c58c optimize sparse bool indexing Jaroslav Hajek <highegg@gmail.com> parents: 8367 diff changeset	284
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	285 ~idx_vector_rep (void);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	286
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	287 octave_idx_type xelem (octave_idx_type i) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	288 { return data[i]; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	289
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	290 octave_idx_type checkelem (octave_idx_type i) const;
4653 14ab7b05a572 [project @ 2003-11-24 05:02:46 by jwe] jwe parents: 4650 diff changeset	291
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	292 octave_idx_type length (octave_idx_type) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	293 { return len; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	294
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	295 octave_idx_type extent (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	296 { return std::max (n, ext); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	297
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	298 idx_class_type idx_class (void) const { return class_vector; }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	299
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	300 idx_base_rep *sort_uniq_clone (bool uniq = false);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	301
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	302 dim_vector orig_dimensions (void) const
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	303 { return orig_dims; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	304
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	305 const octave_idx_type *get_data (void) const { return data; }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	306
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	307 std::ostream& print (std::ostream& os) const;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	308
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	309 private:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	310
8680 a2bcd96b9344 use allocators for idx_vector_rep subclasses Jaroslav Hajek <highegg@gmail.com> parents: 8384 diff changeset	311 DECLARE_OCTAVE_ALLOCATOR
a2bcd96b9344 use allocators for idx_vector_rep subclasses Jaroslav Hajek <highegg@gmail.com> parents: 8384 diff changeset	312
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	313 // No copying!
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	314 idx_vector_rep (const idx_vector_rep& idx);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	315
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	316 const octave_idx_type *data;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	317 octave_idx_type len, ext;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	318
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	319 // This is a trick to allow user-given zero-based arrays to be used as indices
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	320 // without copying. If the following pointer is nonzero, we do not own the data,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	321 // but rather have an Array<octave_idx_type> object that provides us the data.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	322 // Note that we need a pointer because we deferred the Array<T> declaration and
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	323 // we do not want it yet to be defined.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	324
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	325 Array<octave_idx_type> *aowner;
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	326
4653 14ab7b05a572 [project @ 2003-11-24 05:02:46 by jwe] jwe parents: 4650 diff changeset	327 dim_vector orig_dims;
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	328 };
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	329
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	330
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	331 idx_vector (idx_base_rep *r) : rep (r) { }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	332
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	333 // The shared empty vector representation (for fast default constructor)
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	334 static idx_vector_rep *nil_rep (void)
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	335 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	336 static idx_vector_rep ivr;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	337 return &ivr;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	338 }
4938 703d97b89507 [project @ 2004-08-09 20:21:59 by jwe] jwe parents: 4653 diff changeset	339
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	340 // The shared empty vector representation with the error flag set.
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	341 static idx_vector_rep *err_rep (void)
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	342 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	343 static idx_vector_rep ivr;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	344 ivr.err = true;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	345 return &ivr;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	346 }
4938 703d97b89507 [project @ 2004-08-09 20:21:59 by jwe] jwe parents: 4653 diff changeset	347
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	348 // If there was an error in constructing the rep, replace it with empty vector
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	349 // for safety.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	350 void chkerr (void)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	351 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	352 if (rep->err)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	353 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	354 if (--rep->count == 0)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	355 delete rep;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	356 rep = err_rep ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	357 rep->count++;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	358 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	359 }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	360
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	361 public:
1551 8f63ee44726c [project @ 1995-10-08 23:19:55 by jwe] jwe parents: 1315 diff changeset	362
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	363 // Fast empty constructor.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	364 idx_vector (void) : rep (nil_rep ()) { rep->count++; }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	365
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	366 // Zero-based constructors (for use from C++).
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	367 idx_vector (octave_idx_type i) : rep (new idx_scalar_rep (i))
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	368 { chkerr (); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	369
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	370 idx_vector (octave_idx_type start, octave_idx_type limit,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	371 octave_idx_type step = 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	372 : rep (new idx_range_rep (start, limit, step))
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	373 { chkerr (); }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	374
9479 d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	375 static idx_vector
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	376 make_range (octave_idx_type start, octave_idx_type step,
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	377 octave_idx_type len)
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	378 {
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	379 return idx_vector (new idx_range_rep (start, len, step, DIRECT));
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	380 }
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	381
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	382 idx_vector (const Array<octave_idx_type>& inda)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	383 : rep (new idx_vector_rep (inda))
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	384 { chkerr (); }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	385
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	386 // Colon is best constructed by simply copying (or referencing) this member.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	387 static const idx_vector colon;
4938 703d97b89507 [project @ 2004-08-09 20:21:59 by jwe] jwe parents: 4653 diff changeset	388
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	389 // or passing ':' here
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	390 idx_vector (char c) : rep (new idx_colon_rep (c)) { chkerr (); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	391
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	392 // Conversion constructors (used by interpreter).
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	393
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	394 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	395 idx_vector (octave_int<T> x) : rep (new idx_scalar_rep (x)) { chkerr (); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	396
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	397 idx_vector (double x) : rep (new idx_scalar_rep (x)) { chkerr (); }
2386 4fc9fd1424a9 [project @ 1996-10-12 18:31:34 by jwe] jwe parents: 2356 diff changeset	398
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	399 idx_vector (float x) : rep (new idx_scalar_rep (x)) { chkerr (); }
3928 e8627dc4bdf2 [project @ 2002-05-03 19:56:01 by jwe] jwe parents: 3504 diff changeset	400
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	401 // A scalar bool does not necessarily map to scalar index.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	402 idx_vector (bool x) : rep (new idx_vector_rep (x)) { chkerr (); }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	403
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	404 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	405 idx_vector (const Array<octave_int<T> >& nda) : rep (new idx_vector_rep (nda))
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	406 { chkerr (); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	407
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	408 idx_vector (const Array<double>& nda) : rep (new idx_vector_rep (nda))
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	409 { chkerr (); }
2828 92826d6e8bd9 [project @ 1997-03-25 23:41:41 by jwe] jwe parents: 2802 diff changeset	410
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	411 idx_vector (const Array<float>& nda) : rep (new idx_vector_rep (nda))
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	412 { chkerr (); }
4938 703d97b89507 [project @ 2004-08-09 20:21:59 by jwe] jwe parents: 4653 diff changeset	413
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	414 idx_vector (const Array<bool>& nda) : rep (new idx_vector_rep (nda))
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	415 { chkerr (); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	416
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	417 idx_vector (const Range& r)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	418 : rep (new idx_range_rep (r))
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	419 { chkerr (); }
2828 92826d6e8bd9 [project @ 1997-03-25 23:41:41 by jwe] jwe parents: 2802 diff changeset	420
8384 a99b9113c58c optimize sparse bool indexing Jaroslav Hajek <highegg@gmail.com> parents: 8367 diff changeset	421 idx_vector (const Sparse<bool>& nda) : rep (new idx_vector_rep (nda))
a99b9113c58c optimize sparse bool indexing Jaroslav Hajek <highegg@gmail.com> parents: 8367 diff changeset	422 { chkerr (); }
a99b9113c58c optimize sparse bool indexing Jaroslav Hajek <highegg@gmail.com> parents: 8367 diff changeset	423
4979 ce4e3d39d05b [project @ 2004-09-08 23:25:05 by jwe] jwe parents: 4938 diff changeset	424 idx_vector (const idx_vector& a) : rep (a.rep) { rep->count++; }
1551 8f63ee44726c [project @ 1995-10-08 23:19:55 by jwe] jwe parents: 1315 diff changeset	425
2802 bca5fbab2e52 [project @ 1997-03-09 11:02:27 by jwe] jwe parents: 2800 diff changeset	426 ~idx_vector (void)
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	427 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	428 if (--rep->count == 0)
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	429 delete rep;
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	430 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	431
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	432 idx_vector& operator = (const idx_vector& a)
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	433 {
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	434 if (this != &a)
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	435 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	436 if (--rep->count == 0)
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	437 delete rep;
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	438
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	439 rep = a.rep;
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	440 rep->count++;
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	441 }
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	442 return *this;
1551 8f63ee44726c [project @ 1995-10-08 23:19:55 by jwe] jwe parents: 1315 diff changeset	443 }
8f63ee44726c [project @ 1995-10-08 23:19:55 by jwe] jwe parents: 1315 diff changeset	444
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	445 idx_class_type idx_class (void) const { return rep->idx_class (); }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	446
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	447 octave_idx_type length (octave_idx_type n = 0) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	448 { return rep->length (n); }
191 b6b4d8c513fe [project @ 1993-10-29 23:41:39 by jwe] jwe parents: 164 diff changeset	449
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	450 octave_idx_type extent (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	451 { return rep->extent (n); }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	452
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	453 octave_idx_type xelem (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	454 { return rep->xelem (n); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	455
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	456 octave_idx_type checkelem (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	457 { return rep->checkelem (n); }
1551 8f63ee44726c [project @ 1995-10-08 23:19:55 by jwe] jwe parents: 1315 diff changeset	458
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	459 octave_idx_type operator () (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	460 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	461 #if defined (BOUNDS_CHECKING)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	462 return rep->checkelem (n);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	463 #else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	464 return rep->xelem (n);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	465 #endif
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	466 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	467
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	468 operator bool (void) const
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	469 { return ! rep->err; }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	470
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	471 bool is_colon (void) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	472 { return rep->idx_class () == class_colon; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	473
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	474 bool is_scalar (void) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	475 { return rep->idx_class () == class_scalar; }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	476
9479 d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	477 bool is_range (void) const
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	478 { return rep->idx_class () == class_range; }
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	479
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	480 bool is_colon_equiv (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	481 { return rep->is_colon_equiv (n); }
3079 eb827eb9b8ff [project @ 1997-08-03 20:44:07 by jwe] jwe parents: 2847 diff changeset	482
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	483 idx_vector sorted (bool uniq = false) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	484 { return idx_vector (rep->sort_uniq_clone (uniq)); }
208 380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 191 diff changeset	485
4653 14ab7b05a572 [project @ 2003-11-24 05:02:46 by jwe] jwe parents: 4650 diff changeset	486 dim_vector orig_dimensions (void) const { return rep->orig_dimensions (); }
4504 f6a61399bc5c [project @ 2003-09-09 17:48:00 by jwe] jwe parents: 4461 diff changeset	487
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	488 octave_idx_type orig_rows (void) const
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	489 { return orig_dimensions () (0); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	490
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	491 octave_idx_type orig_columns (void) const
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	492 { return orig_dimensions () (1); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	493
2663 00b2eff19bf5 [project @ 1997-02-08 21:58:49 by jwe] jwe parents: 2386 diff changeset	494 int orig_empty (void) const
4653 14ab7b05a572 [project @ 2003-11-24 05:02:46 by jwe] jwe parents: 4650 diff changeset	495 { return (! is_colon () && orig_dimensions().any_zero ()); }
2663 00b2eff19bf5 [project @ 1997-02-08 21:58:49 by jwe] jwe parents: 2386 diff changeset	496
4653 14ab7b05a572 [project @ 2003-11-24 05:02:46 by jwe] jwe parents: 4650 diff changeset	497 // i/o
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	498
3504 5eef8a2294bd [project @ 2000-02-01 10:06:51 by jwe] jwe parents: 3503 diff changeset	499 std::ostream& print (std::ostream& os) const { return rep->print (os); }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	500
3504 5eef8a2294bd [project @ 2000-02-01 10:06:51 by jwe] jwe parents: 3503 diff changeset	501 friend std::ostream& operator << (std::ostream& os, const idx_vector& a)
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	502 { return a.print (os); }
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	503
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	504 // Slice with specializations. No checking of bounds!
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	505 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	506 // This is equivalent to the following loop (but much faster):
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	507 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	508 // for (octave_idx_type i = 0; i < idx->length (n); i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	509 // dest[i] = src[idx(i)];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	510 // return i;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	511 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	512 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	513 octave_idx_type
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	514 index (const T src, octave_idx_type n, T dest) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	515 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	516 octave_idx_type len = rep->length (n);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	517 switch (rep->idx_class ())
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	518 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	519 case class_colon:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	520 std::copy (src, src + len, dest);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	521 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	522 case class_range:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	523 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	524 idx_range_rep * r = dynamic_cast<idx_range_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	525 octave_idx_type start = r->get_start (), step = r->get_step ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	526 const T *ssrc = src + start;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	527 if (step == 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	528 std::copy (ssrc, ssrc + len, dest);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	529 else if (step == -1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	530 std::reverse_copy (ssrc - len + 1, ssrc + 1, dest);
8972 5fa53d1b6247 more indexing optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8950 diff changeset	531 else if (step == 0)
5fa53d1b6247 more indexing optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8950 diff changeset	532 std::fill_n (dest, len, *ssrc);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	533 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	534 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	535 for (octave_idx_type i = 0, j = 0; i < len; i++, j += step)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	536 dest[i] = ssrc[j];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	537 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	538 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	539 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	540 case class_scalar:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	541 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	542 idx_scalar_rep * r = dynamic_cast<idx_scalar_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	543 dest[0] = src[r->get_data ()];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	544 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	545 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	546 case class_vector:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	547 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	548 idx_vector_rep * r = dynamic_cast<idx_vector_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	549 const octave_idx_type *data = r->get_data ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	550 for (octave_idx_type i = 0; i < len; i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	551 dest[i] = src[data[i]];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	552 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	553 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	554 default:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	555 assert (false);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	556 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	557 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	558
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	559 return len;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	560 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	561
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	562 // Slice assignment with specializations. No checking of bounds!
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	563 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	564 // This is equivalent to the following loop (but much faster):
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	565 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	566 // for (octave_idx_type i = 0; i < idx->length (n); i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	567 // dest[idx(i)] = src[i];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	568 // return i;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	569 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	570 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	571 octave_idx_type
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	572 assign (const T src, octave_idx_type n, T dest) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	573 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	574 octave_idx_type len = rep->length (n);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	575 switch (rep->idx_class ())
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	576 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	577 case class_colon:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	578 std::copy (src, src + len, dest);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	579 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	580 case class_range:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	581 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	582 idx_range_rep * r = dynamic_cast<idx_range_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	583 octave_idx_type start = r->get_start (), step = r->get_step ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	584 T *sdest = dest + start;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	585 if (step == 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	586 std::copy (src, src + len, sdest);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	587 else if (step == -1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	588 std::reverse_copy (src, src + len, sdest - len + 1);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	589 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	590 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	591 for (octave_idx_type i = 0, j = 0; i < len; i++, j += step)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	592 sdest[j] = src[i];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	593 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	594 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	595 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	596 case class_scalar:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	597 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	598 idx_scalar_rep * r = dynamic_cast<idx_scalar_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	599 dest[r->get_data ()] = src[0];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	600 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	601 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	602 case class_vector:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	603 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	604 idx_vector_rep * r = dynamic_cast<idx_vector_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	605 const octave_idx_type *data = r->get_data ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	606 for (octave_idx_type i = 0; i < len; i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	607 dest[data[i]] = src[i];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	608 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	609 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	610 default:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	611 assert (false);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	612 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	613 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	614
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	615 return len;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	616 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	617
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	618 // Slice fill with specializations. No checking of bounds!
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	619 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	620 // This is equivalent to the following loop (but much faster):
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	621 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	622 // for (octave_idx_type i = 0; i < idx->length (n); i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	623 // dest[idx(i)] = val;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	624 // return i;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	625 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	626 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	627 octave_idx_type
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	628 fill (const T& val, octave_idx_type n, T *dest) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	629 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	630 octave_idx_type len = rep->length (n);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	631 switch (rep->idx_class ())
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	632 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	633 case class_colon:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	634 std::fill (dest, dest + len, val);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	635 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	636 case class_range:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	637 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	638 idx_range_rep * r = dynamic_cast<idx_range_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	639 octave_idx_type start = r->get_start (), step = r->get_step ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	640 T *sdest = dest + start;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	641 if (step == 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	642 std::fill (sdest, sdest + len, val);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	643 else if (step == -1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	644 std::fill (sdest - len + 1, sdest + 1, val);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	645 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	646 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	647 for (octave_idx_type i = 0, j = 0; i < len; i++, j += step)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	648 sdest[j] = val;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	649 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	650 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	651 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	652 case class_scalar:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	653 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	654 idx_scalar_rep * r = dynamic_cast<idx_scalar_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	655 dest[r->get_data ()] = val;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	656 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	657 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	658 case class_vector:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	659 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	660 idx_vector_rep * r = dynamic_cast<idx_vector_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	661 const octave_idx_type *data = r->get_data ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	662 for (octave_idx_type i = 0; i < len; i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	663 dest[data[i]] = val;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	664 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	665 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	666 default:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	667 assert (false);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	668 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	669 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	670
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	671 return len;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	672 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	673
8934 c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	674 // Generic non-breakable indexed loop. The loop body should be encapsulated in a
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	675 // single functor body.
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	676 // This is equivalent to the following loop (but faster, at least for simple
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	677 // inlined bodies):
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	678 //
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	679 // for (octave_idx_type i = 0; i < idx->length (n); i++) body (idx(i));
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	680 //
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	681
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	682 template <class Functor>
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	683 void
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	684 loop (octave_idx_type n, Functor body) const
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	685 {
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	686 octave_idx_type len = rep->length (n);
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	687 switch (rep->idx_class ())
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	688 {
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	689 case class_colon:
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	690 for (octave_idx_type i = 0; i < len; i++) body (i);
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	691 break;
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	692 case class_range:
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	693 {
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	694 idx_range_rep * r = dynamic_cast<idx_range_rep *> (rep);
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	695 octave_idx_type start = r->get_start (), step = r->get_step ();
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	696 octave_idx_type i, j;
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	697 if (step == 1)
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	698 for (i = start, j = start + len; i < j; i++) body (i);
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	699 else if (step == -1)
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	700 for (i = start, j = start - len; i > j; i--) body (i);
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	701 else
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	702 for (i = 0, j = start; i < len; i++, j += step) body (j);
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	703 }
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	704 break;
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	705 case class_scalar:
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	706 {
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	707 idx_scalar_rep * r = dynamic_cast<idx_scalar_rep *> (rep);
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	708 body (r->get_data ());
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	709 }
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	710 break;
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	711 case class_vector:
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	712 {
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	713 idx_vector_rep * r = dynamic_cast<idx_vector_rep *> (rep);
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	714 const octave_idx_type *data = r->get_data ();
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	715 for (octave_idx_type i = 0; i < len; i++) body (data[i]);
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	716 }
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	717 break;
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	718 default:
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	719 assert (false);
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	720 break;
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	721 }
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	722
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	723 }
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	724
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	725 // Generic breakable indexed loop. The loop body should be encapsulated in a
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	726 // single functor body.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	727 // This is equivalent to the following loop (but faster, at least for simple
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	728 // inlined bodies):
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	729 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	730 // for (octave_idx_type i = 0; i < idx->length (n); i++)
8934 c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	731 // if (body (idx(i))) break;
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	732 // return i;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	733 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	734
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	735 template <class Functor>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	736 octave_idx_type
8934 c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	737 bloop (octave_idx_type n, Functor body) const
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	738 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	739 octave_idx_type len = rep->length (n), ret;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	740 switch (rep->idx_class ())
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	741 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	742 case class_colon:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	743 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	744 octave_idx_type i;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	745 for (i = 0; i < len && body (i); i++) ;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	746 ret = i;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	747 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	748 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	749 case class_range:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	750 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	751 idx_range_rep * r = dynamic_cast<idx_range_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	752 octave_idx_type start = r->get_start (), step = r->get_step ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	753 octave_idx_type i, j;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	754 if (step == 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	755 for (i = start, j = start + len; i < j && body (i); i++) ;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	756 else if (step == -1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	757 for (i = start, j = start - len; i > j && body (i); i--) ;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	758 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	759 for (i = 0, j = start; i < len && body (j); i++, j += step) ;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	760 ret = i;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	761 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	762 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	763 case class_scalar:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	764 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	765 idx_scalar_rep * r = dynamic_cast<idx_scalar_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	766 ret = body (r->get_data ()) ? 1 : 0;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	767 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	768 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	769 case class_vector:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	770 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	771 idx_vector_rep * r = dynamic_cast<idx_vector_rep *> (rep);
8934 c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	772 const octave_idx_type *data = r->get_data ();
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	773 octave_idx_type i;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	774 for (i = 0; i < len && body (data[i]); i++) ;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	775 ret = i;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	776 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	777 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	778 default:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	779 assert (false);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	780 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	781 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	782
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	783 return ret;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	784 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	785
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	786 // Rationale:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	787 // This method is the key to "smart indexing". When indexing cartesian
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	788 // arrays, sometimes consecutive index vectors can be reduced into a single
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	789 // index. If rows (A) = k and i.maybe_reduce (j) gives k, then A(i,j)(:) is
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	790 // equal to A(k)(:).
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	791
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	792 // If the next index can be reduced, returns true and updates this.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	793 bool maybe_reduce (octave_idx_type n, const idx_vector& j,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	794 octave_idx_type nj);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	795
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	796 bool is_cont_range (octave_idx_type n,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	797 octave_idx_type& l, octave_idx_type& u) const;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	798
9725 aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	799 // Returns the increment for ranges and colon, 0 for scalars and empty
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	800 // vectors, 1st difference otherwise.
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	801 octave_idx_type increment (void) const;
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	802
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	803 idx_vector
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	804 complement (octave_idx_type n) const;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	805
8367 445d27d79f4e support permutation matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8333 diff changeset	806 bool is_permutation (octave_idx_type n) const;
445d27d79f4e support permutation matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8333 diff changeset	807
9479 d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	808 // Copies all the indices to a given array. Not allowed for colons.
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	809 void copy_data (octave_idx_type *data) const;
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	810
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	811 // Unconverts the index to a scalar, Range or double array.
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	812 void unconvert (idx_class_type& iclass,
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	813 double& scalar, Range& range, Array<double>& array) const;
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	814
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	815 // FIXME -- these are here for compatibility. They should be removed
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	816 // when no longer in use.
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	817
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	818 octave_idx_type elem (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	819 { return (*this) (n); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	820
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	821 bool is_colon_equiv (octave_idx_type n, int) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	822 { return is_colon_equiv (n); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	823
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	824 octave_idx_type
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	825 freeze (octave_idx_type z_len, const char *tag, bool resize_ok = false);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	826
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	827 void sort (bool uniq = false)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	828 { *this = sorted (uniq); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	829
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	830 octave_idx_type ones_count (void) const;
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	831
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	832 octave_idx_type max (void) const { return extent (1) - 1; }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	833
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	834 private:
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	835
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	836 idx_base_rep *rep;
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	837
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	838 };
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	839
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	840 #endif
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	841
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	842 /*
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	843 ;;; Local Variables: ***
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	844 ;;; mode: C++ ***
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	845 ;;; End: ***
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	846 */

Mercurial > hg > octave-lyh

annotate liboctave/idx-vector.h @ 9725:aea3a3a950e1