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

annotate liboctave/idx-vector.h @ 9773:01f897d8a130

optimize memory manipulation by arrays & indexing

author	Jaroslav Hajek <highegg@gmail.com>
date	Tue, 03 Nov 2009 11:35:59 +0100
parents	aea3a3a950e1
children	6dafc60dde31

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"
9773 01f897d8a130 optimize memory manipulation by arrays & indexing Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	37 #include "oct-mem.h"
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	38
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	39 template<class T> class Array;
8384 a99b9113c58c optimize sparse bool indexing Jaroslav Hajek <highegg@gmail.com> parents: 8367 diff changeset	40 template<class T> class Sparse;
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	41 class Range;
4504 f6a61399bc5c [project @ 2003-09-09 17:48:00 by jwe] jwe parents: 4461 diff changeset	42
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	43 // Design rationale:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	44 // 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	45 // 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	46 // 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	47 // 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	48 // type out of loops.
164 e2c950dd96d2 [project @ 1993-10-18 19:32:00 by jwe] jwe parents: 1 diff changeset	49
453 393e95f46b51 [project @ 1994-06-06 00:05:20 by jwe] jwe parents: 434 diff changeset	50 class
6108 143b556ce725 [project @ 2006-10-27 01:45:54 by jwe] jwe parents: 5781 diff changeset	51 OCTAVE_API
453 393e95f46b51 [project @ 1994-06-06 00:05:20 by jwe] jwe parents: 434 diff changeset	52 idx_vector
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	53 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	54 public:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	55
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	56 enum idx_class_type
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	57 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	58 class_invalid = -1,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	59 class_colon = 0,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	60 class_range,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	61 class_scalar,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	62 class_vector
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	63 };
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	64
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	65 private:
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	66
8319 c374691576f6 Fix for MSVC compilation Michael Goffioul <michael.goffioul@gmail.com> parents: 8298 diff changeset	67 class OCTAVE_API idx_base_rep
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	68 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	69 public:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	70 idx_base_rep (void) : count (1), err (false) { }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	71
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	72 virtual ~idx_base_rep (void) { }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	73
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	74 // Non-range-checking element query.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	75 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	76
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	77 // Range-checking element query.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	78 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	79
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	80 // Length of the index vector.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	81 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	82
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	83 // The maximum index + 1. The actual dimension is passed in.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	84 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	85
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	86 // Index class.
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	87 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	88
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	89 // Sorts, maybe uniqifies, and returns a clone object pointer.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	90 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	91
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	92 // 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	93 virtual bool is_colon_equiv (octave_idx_type) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	94 { return false; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	95
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	96 // 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	97 virtual dim_vector orig_dimensions (void) const
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	98 { return dim_vector (); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	99
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	100 // i/o
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	101 virtual std::ostream& print (std::ostream& os) const = 0;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	102
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	103 int count;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	104
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	105 bool err;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	106
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	107 private:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	108
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	109 // No copying!
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	110 idx_base_rep (const idx_base_rep&);
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
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	113 // The magic colon index.
8319 c374691576f6 Fix for MSVC compilation Michael Goffioul <michael.goffioul@gmail.com> parents: 8298 diff changeset	114 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	115 {
1b43d3c06c04 [project @ 1996-02-05 16:24:56 by jwe] jwe parents: 1560 diff changeset	116 public:
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	117 idx_colon_rep (void) { }
1879 1b43d3c06c04 [project @ 1996-02-05 16:24:56 by jwe] jwe parents: 1560 diff changeset	118
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	119 idx_colon_rep (char c);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	120
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	121 octave_idx_type xelem (octave_idx_type i) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	122 { return i; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	123
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	124 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	125
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	126 octave_idx_type length (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	127 { return n; }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	128
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	129 octave_idx_type extent (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	130 { return n; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	131
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	132 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	133
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	134 idx_base_rep *sort_uniq_clone (bool = false)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	135 { count++; return this; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	136
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	137 bool is_colon_equiv (octave_idx_type) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	138 { return true; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	139
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	140 std::ostream& print (std::ostream& os) const;
4938 703d97b89507 [project @ 2004-08-09 20:21:59 by jwe] jwe parents: 4653 diff changeset	141
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	142 private:
4938 703d97b89507 [project @ 2004-08-09 20:21:59 by jwe] jwe parents: 4653 diff changeset	143
8680 a2bcd96b9344 use allocators for idx_vector_rep subclasses Jaroslav Hajek <highegg@gmail.com> parents: 8384 diff changeset	144 DECLARE_OCTAVE_ALLOCATOR
a2bcd96b9344 use allocators for idx_vector_rep subclasses Jaroslav Hajek <highegg@gmail.com> parents: 8384 diff changeset	145
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	146 // No copying!
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	147 idx_colon_rep (const idx_colon_rep& idx);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	148 };
2386 4fc9fd1424a9 [project @ 1996-10-12 18:31:34 by jwe] jwe parents: 2356 diff changeset	149
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	150 // To distinguish the "direct" constructors that blindly trust the data.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	151 enum direct { DIRECT };
2828 92826d6e8bd9 [project @ 1997-03-25 23:41:41 by jwe] jwe parents: 2802 diff changeset	152
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	153 // The integer range index.
8319 c374691576f6 Fix for MSVC compilation Michael Goffioul <michael.goffioul@gmail.com> parents: 8298 diff changeset	154 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	155 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	156 public:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	157 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	158 octave_idx_type _step, direct)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	159 : 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	160
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	161 idx_range_rep (void)
8298 7e87d3d76a56 fix extent query for empty ranges Jaroslav Hajek <highegg@gmail.com> parents: 8290 diff changeset	162 : start(0), len(0), step(1) { }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	163
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	164 // Zero-based constructor.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	165 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	166 octave_idx_type _step);
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	167
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	168 idx_range_rep (const Range&);
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	169
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	170 octave_idx_type xelem (octave_idx_type i) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	171 { return start + i * step; }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	172
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	173 octave_idx_type checkelem (octave_idx_type i) const;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	174
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	175 octave_idx_type length (octave_idx_type) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	176 { return len; }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	177
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	178 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	179 { 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	180
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	181 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	182
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	183 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	184
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	185 bool is_colon_equiv (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	186 { return start == 0 && step == 1 && len == n; }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	187
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	188 dim_vector orig_dimensions (void) const
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	189 { return dim_vector (1, len); }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	190
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	191 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	192
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	193 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	194
3504 5eef8a2294bd [project @ 2000-02-01 10:06:51 by jwe] jwe parents: 3503 diff changeset	195 std::ostream& print (std::ostream& os) const;
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	196
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	197 private:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	198
8680 a2bcd96b9344 use allocators for idx_vector_rep subclasses Jaroslav Hajek <highegg@gmail.com> parents: 8384 diff changeset	199 DECLARE_OCTAVE_ALLOCATOR
a2bcd96b9344 use allocators for idx_vector_rep subclasses Jaroslav Hajek <highegg@gmail.com> parents: 8384 diff changeset	200
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	201 // No copying!
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	202 idx_range_rep (const idx_range_rep& idx);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	203
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	204 octave_idx_type start, len, step;
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
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	208 // The integer scalar index.
8319 c374691576f6 Fix for MSVC compilation Michael Goffioul <michael.goffioul@gmail.com> parents: 8298 diff changeset	209 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	210 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	211 public:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	212 idx_scalar_rep (octave_idx_type i, direct)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	213 : data (i) { }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	214
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	215 idx_scalar_rep (void)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	216 : data (0) { }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	217
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	218 // Zero-based constructor.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	219 idx_scalar_rep (octave_idx_type i);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	220
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	221 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	222 idx_scalar_rep (T x);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	223
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	224 octave_idx_type xelem (octave_idx_type) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	225 { return data; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	226
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	227 octave_idx_type checkelem (octave_idx_type i) const;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	228
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	229 octave_idx_type length (octave_idx_type) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	230 { return 1; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	231
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	232 octave_idx_type extent (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	233 { return std::max (n, data + 1); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	234
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	235 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	236
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	237 idx_base_rep *sort_uniq_clone (bool = false)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	238 { count++; return this; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	239
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	240 bool is_colon_equiv (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	241 { return n == 1 && data == 0; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	242
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	243 dim_vector orig_dimensions (void) const
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	244 { return dim_vector (1, 1); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	245
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	246 octave_idx_type get_data (void) const { return data; }
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	247
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	248 std::ostream& print (std::ostream& os) const;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	249
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	250 private:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	251
8680 a2bcd96b9344 use allocators for idx_vector_rep subclasses Jaroslav Hajek <highegg@gmail.com> parents: 8384 diff changeset	252 DECLARE_OCTAVE_ALLOCATOR
a2bcd96b9344 use allocators for idx_vector_rep subclasses Jaroslav Hajek <highegg@gmail.com> parents: 8384 diff changeset	253
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	254 // No copying!
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	255 idx_scalar_rep (const idx_scalar_rep& idx);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	256
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	257 octave_idx_type data;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	258
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	259 };
4504 f6a61399bc5c [project @ 2003-09-09 17:48:00 by jwe] jwe parents: 4461 diff changeset	260
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	261 // The integer vector index.
8319 c374691576f6 Fix for MSVC compilation Michael Goffioul <michael.goffioul@gmail.com> parents: 8298 diff changeset	262 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	263 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	264 public:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	265 // Direct constructor.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	266 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	267 octave_idx_type _ext, const dim_vector& od, direct)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	268 : 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	269
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	270 idx_vector_rep (void)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	271 : data (0), len (0), aowner (0)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	272 { }
5275 23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe] jwe parents: 5105 diff changeset	273
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	274 // Zero-based constructor.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	275 idx_vector_rep (const Array<octave_idx_type>& inda);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	276
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	277 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	278 idx_vector_rep (const Array<T>&);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	279
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	280 idx_vector_rep (bool);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	281
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	282 idx_vector_rep (const Array<bool>&);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	283
8384 a99b9113c58c optimize sparse bool indexing Jaroslav Hajek <highegg@gmail.com> parents: 8367 diff changeset	284 idx_vector_rep (const Sparse<bool>&);
a99b9113c58c optimize sparse bool indexing Jaroslav Hajek <highegg@gmail.com> parents: 8367 diff changeset	285
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	286 ~idx_vector_rep (void);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	287
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	288 octave_idx_type xelem (octave_idx_type i) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	289 { return data[i]; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	290
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	291 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	292
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	293 octave_idx_type length (octave_idx_type) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	294 { return len; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	295
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	296 octave_idx_type extent (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	297 { return std::max (n, ext); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	298
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	299 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	300
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	301 idx_base_rep *sort_uniq_clone (bool uniq = false);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	302
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	303 dim_vector orig_dimensions (void) const
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	304 { return orig_dims; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	305
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	306 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	307
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	308 std::ostream& print (std::ostream& os) const;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	309
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	310 private:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	311
8680 a2bcd96b9344 use allocators for idx_vector_rep subclasses Jaroslav Hajek <highegg@gmail.com> parents: 8384 diff changeset	312 DECLARE_OCTAVE_ALLOCATOR
a2bcd96b9344 use allocators for idx_vector_rep subclasses Jaroslav Hajek <highegg@gmail.com> parents: 8384 diff changeset	313
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	314 // No copying!
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	315 idx_vector_rep (const idx_vector_rep& idx);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	316
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	317 const octave_idx_type *data;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	318 octave_idx_type len, ext;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	319
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	320 // 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	321 // 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	322 // 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	323 // 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	324 // we do not want it yet to be defined.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	325
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	326 Array<octave_idx_type> *aowner;
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	327
4653 14ab7b05a572 [project @ 2003-11-24 05:02:46 by jwe] jwe parents: 4650 diff changeset	328 dim_vector orig_dims;
8290 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
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	332 idx_vector (idx_base_rep *r) : rep (r) { }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	333
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	334 // The shared empty vector representation (for fast default constructor)
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	335 static idx_vector_rep *nil_rep (void)
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	336 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	337 static idx_vector_rep ivr;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	338 return &ivr;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	339 }
4938 703d97b89507 [project @ 2004-08-09 20:21:59 by jwe] jwe parents: 4653 diff changeset	340
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	341 // The shared empty vector representation with the error flag set.
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	342 static idx_vector_rep *err_rep (void)
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	343 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	344 static idx_vector_rep ivr;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	345 ivr.err = true;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	346 return &ivr;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	347 }
4938 703d97b89507 [project @ 2004-08-09 20:21:59 by jwe] jwe parents: 4653 diff changeset	348
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	349 // 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	350 // for safety.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	351 void chkerr (void)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	352 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	353 if (rep->err)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	354 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	355 if (--rep->count == 0)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	356 delete rep;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	357 rep = err_rep ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	358 rep->count++;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	359 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	360 }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	361
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	362 public:
1551 8f63ee44726c [project @ 1995-10-08 23:19:55 by jwe] jwe parents: 1315 diff changeset	363
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	364 // Fast empty constructor.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	365 idx_vector (void) : rep (nil_rep ()) { rep->count++; }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	366
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	367 // Zero-based constructors (for use from C++).
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	368 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	369 { chkerr (); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	370
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	371 idx_vector (octave_idx_type start, octave_idx_type limit,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	372 octave_idx_type step = 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	373 : rep (new idx_range_rep (start, limit, step))
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	374 { chkerr (); }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	375
9479 d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	376 static idx_vector
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	377 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	378 octave_idx_type len)
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	379 {
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	380 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	381 }
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	382
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	383 idx_vector (const Array<octave_idx_type>& inda)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	384 : rep (new idx_vector_rep (inda))
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	385 { chkerr (); }
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	386
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	387 // 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	388 static const idx_vector colon;
4938 703d97b89507 [project @ 2004-08-09 20:21:59 by jwe] jwe parents: 4653 diff changeset	389
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	390 // or passing ':' here
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	391 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	392
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	393 // Conversion constructors (used by interpreter).
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	394
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	395 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	396 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	397
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	398 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	399
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	400 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	401
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	402 // A scalar bool does not necessarily map to scalar index.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	403 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	404
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	405 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	406 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	407 { chkerr (); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	408
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	409 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	410 { chkerr (); }
2828 92826d6e8bd9 [project @ 1997-03-25 23:41:41 by jwe] jwe parents: 2802 diff changeset	411
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	412 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	413 { chkerr (); }
4938 703d97b89507 [project @ 2004-08-09 20:21:59 by jwe] jwe parents: 4653 diff changeset	414
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	415 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	416 { chkerr (); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	417
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	418 idx_vector (const Range& r)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	419 : rep (new idx_range_rep (r))
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	420 { chkerr (); }
2828 92826d6e8bd9 [project @ 1997-03-25 23:41:41 by jwe] jwe parents: 2802 diff changeset	421
8384 a99b9113c58c optimize sparse bool indexing Jaroslav Hajek <highegg@gmail.com> parents: 8367 diff changeset	422 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	423 { chkerr (); }
a99b9113c58c optimize sparse bool indexing Jaroslav Hajek <highegg@gmail.com> parents: 8367 diff changeset	424
4979 ce4e3d39d05b [project @ 2004-09-08 23:25:05 by jwe] jwe parents: 4938 diff changeset	425 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	426
2802 bca5fbab2e52 [project @ 1997-03-09 11:02:27 by jwe] jwe parents: 2800 diff changeset	427 ~idx_vector (void)
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	428 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	429 if (--rep->count == 0)
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	430 delete rep;
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	431 }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	432
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	433 idx_vector& operator = (const idx_vector& a)
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	434 {
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	435 if (this != &a)
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	436 {
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	437 if (--rep->count == 0)
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	438 delete rep;
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	439
1560 27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	440 rep = a.rep;
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	441 rep->count++;
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	442 }
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	443 return *this;
1551 8f63ee44726c [project @ 1995-10-08 23:19:55 by jwe] jwe parents: 1315 diff changeset	444 }
8f63ee44726c [project @ 1995-10-08 23:19:55 by jwe] jwe parents: 1315 diff changeset	445
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	446 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	447
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	448 octave_idx_type length (octave_idx_type n = 0) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	449 { return rep->length (n); }
191 b6b4d8c513fe [project @ 1993-10-29 23:41:39 by jwe] jwe parents: 164 diff changeset	450
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	451 octave_idx_type extent (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	452 { return rep->extent (n); }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	453
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	454 octave_idx_type xelem (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	455 { return rep->xelem (n); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	456
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	457 octave_idx_type checkelem (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	458 { return rep->checkelem (n); }
1551 8f63ee44726c [project @ 1995-10-08 23:19:55 by jwe] jwe parents: 1315 diff changeset	459
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	460 octave_idx_type operator () (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	461 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	462 #if defined (BOUNDS_CHECKING)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	463 return rep->checkelem (n);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	464 #else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	465 return rep->xelem (n);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	466 #endif
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	467 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	468
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	469 operator bool (void) const
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	470 { return ! rep->err; }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	471
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	472 bool is_colon (void) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	473 { return rep->idx_class () == class_colon; }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	474
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	475 bool is_scalar (void) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	476 { return rep->idx_class () == class_scalar; }
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	477
9479 d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	478 bool is_range (void) const
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	479 { return rep->idx_class () == class_range; }
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	480
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	481 bool is_colon_equiv (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	482 { return rep->is_colon_equiv (n); }
3079 eb827eb9b8ff [project @ 1997-08-03 20:44:07 by jwe] jwe parents: 2847 diff changeset	483
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	484 idx_vector sorted (bool uniq = false) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	485 { return idx_vector (rep->sort_uniq_clone (uniq)); }
208 380cb9ccc889 [project @ 1993-11-12 10:35:05 by jwe] jwe parents: 191 diff changeset	486
4653 14ab7b05a572 [project @ 2003-11-24 05:02:46 by jwe] jwe parents: 4650 diff changeset	487 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	488
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	489 octave_idx_type orig_rows (void) const
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	490 { return orig_dimensions () (0); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	491
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	492 octave_idx_type orig_columns (void) const
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	493 { return orig_dimensions () (1); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	494
2663 00b2eff19bf5 [project @ 1997-02-08 21:58:49 by jwe] jwe parents: 2386 diff changeset	495 int orig_empty (void) const
4653 14ab7b05a572 [project @ 2003-11-24 05:02:46 by jwe] jwe parents: 4650 diff changeset	496 { return (! is_colon () && orig_dimensions().any_zero ()); }
2663 00b2eff19bf5 [project @ 1997-02-08 21:58:49 by jwe] jwe parents: 2386 diff changeset	497
4653 14ab7b05a572 [project @ 2003-11-24 05:02:46 by jwe] jwe parents: 4650 diff changeset	498 // i/o
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	499
3504 5eef8a2294bd [project @ 2000-02-01 10:06:51 by jwe] jwe parents: 3503 diff changeset	500 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	501
3504 5eef8a2294bd [project @ 2000-02-01 10:06:51 by jwe] jwe parents: 3503 diff changeset	502 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	503 { return a.print (os); }
27a03373de41 [project @ 1995-10-12 07:22:26 by jwe] jwe parents: 1553 diff changeset	504
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	505 // Slice with specializations. No checking of bounds!
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	506 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	507 // This is equivalent to the following loop (but much faster):
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	508 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	509 // 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	510 // dest[i] = src[idx(i)];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	511 // return i;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	512 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	513 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	514 octave_idx_type
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	515 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	516 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	517 octave_idx_type len = rep->length (n);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	518 switch (rep->idx_class ())
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	519 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	520 case class_colon:
9773 01f897d8a130 optimize memory manipulation by arrays & indexing Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	521 octave_ucopy (len, src, dest);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	522 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	523 case class_range:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	524 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	525 idx_range_rep * r = dynamic_cast<idx_range_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	526 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	527 const T *ssrc = src + start;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	528 if (step == 1)
9773 01f897d8a130 optimize memory manipulation by arrays & indexing Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	529 octave_ucopy (len, ssrc, dest);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	530 else if (step == -1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	531 std::reverse_copy (ssrc - len + 1, ssrc + 1, dest);
8972 5fa53d1b6247 more indexing optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8950 diff changeset	532 else if (step == 0)
5fa53d1b6247 more indexing optimizations Jaroslav Hajek <highegg@gmail.com> parents: 8950 diff changeset	533 std::fill_n (dest, len, *ssrc);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	534 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	535 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	536 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	537 dest[i] = ssrc[j];
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 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	540 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	541 case class_scalar:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	542 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	543 idx_scalar_rep * r = dynamic_cast<idx_scalar_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	544 dest[0] = src[r->get_data ()];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	545 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	546 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	547 case class_vector:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	548 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	549 idx_vector_rep * r = dynamic_cast<idx_vector_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	550 const octave_idx_type *data = r->get_data ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	551 for (octave_idx_type i = 0; i < len; i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	552 dest[i] = src[data[i]];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	553 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	554 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	555 default:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	556 assert (false);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	557 break;
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
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	560 return len;
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
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	563 // Slice assignment with specializations. No checking of bounds!
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	564 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	565 // This is equivalent to the following loop (but much faster):
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	566 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	567 // 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	568 // dest[idx(i)] = src[i];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	569 // return i;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	570 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	571 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	572 octave_idx_type
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	573 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	574 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	575 octave_idx_type len = rep->length (n);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	576 switch (rep->idx_class ())
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	577 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	578 case class_colon:
9773 01f897d8a130 optimize memory manipulation by arrays & indexing Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	579 octave_ucopy (len, src, dest);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	580 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	581 case class_range:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	582 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	583 idx_range_rep * r = dynamic_cast<idx_range_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	584 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	585 T *sdest = dest + start;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	586 if (step == 1)
9773 01f897d8a130 optimize memory manipulation by arrays & indexing Jaroslav Hajek <highegg@gmail.com> parents: 9725 diff changeset	587 octave_ucopy (len, src, sdest);
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	588 else if (step == -1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	589 std::reverse_copy (src, src + len, sdest - len + 1);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	590 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	591 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	592 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	593 sdest[j] = src[i];
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 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	596 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	597 case class_scalar:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	598 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	599 idx_scalar_rep * r = dynamic_cast<idx_scalar_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	600 dest[r->get_data ()] = src[0];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	601 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	602 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	603 case class_vector:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	604 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	605 idx_vector_rep * r = dynamic_cast<idx_vector_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	606 const octave_idx_type *data = r->get_data ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	607 for (octave_idx_type i = 0; i < len; i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	608 dest[data[i]] = src[i];
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	609 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	610 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	611 default:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	612 assert (false);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	613 break;
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
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	616 return len;
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
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	619 // Slice fill with specializations. No checking of bounds!
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	620 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	621 // This is equivalent to the following loop (but much faster):
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	622 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	623 // 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	624 // dest[idx(i)] = val;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	625 // return i;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	626 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	627 template <class T>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	628 octave_idx_type
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	629 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	630 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	631 octave_idx_type len = rep->length (n);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	632 switch (rep->idx_class ())
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	633 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	634 case class_colon:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	635 std::fill (dest, dest + len, val);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	636 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	637 case class_range:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	638 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	639 idx_range_rep * r = dynamic_cast<idx_range_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	640 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	641 T *sdest = dest + start;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	642 if (step == 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	643 std::fill (sdest, sdest + len, val);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	644 else if (step == -1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	645 std::fill (sdest - len + 1, sdest + 1, val);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	646 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	647 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	648 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	649 sdest[j] = val;
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 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	652 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	653 case class_scalar:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	654 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	655 idx_scalar_rep * r = dynamic_cast<idx_scalar_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	656 dest[r->get_data ()] = val;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	657 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	658 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	659 case class_vector:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	660 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	661 idx_vector_rep * r = dynamic_cast<idx_vector_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	662 const octave_idx_type *data = r->get_data ();
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	663 for (octave_idx_type i = 0; i < len; i++)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	664 dest[data[i]] = val;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	665 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	666 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	667 default:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	668 assert (false);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	669 break;
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
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	672 return len;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	673 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	674
8934 c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	675 // 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	676 // single functor body.
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	677 // 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	678 // inlined bodies):
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	679 //
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	680 // 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	681 //
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	682
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	683 template <class Functor>
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	684 void
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	685 loop (octave_idx_type n, Functor body) const
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	686 {
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	687 octave_idx_type len = rep->length (n);
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	688 switch (rep->idx_class ())
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	689 {
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	690 case class_colon:
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	691 for (octave_idx_type i = 0; i < len; i++) body (i);
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	692 break;
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	693 case class_range:
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	694 {
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	695 idx_range_rep * r = dynamic_cast<idx_range_rep *> (rep);
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	696 octave_idx_type start = r->get_start (), step = r->get_step ();
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	697 octave_idx_type i, j;
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	698 if (step == 1)
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	699 for (i = start, j = start + len; i < j; i++) body (i);
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	700 else if (step == -1)
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	701 for (i = start, j = start - len; i > j; i--) body (i);
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	702 else
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	703 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	704 }
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	705 break;
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	706 case class_scalar:
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	707 {
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	708 idx_scalar_rep * r = dynamic_cast<idx_scalar_rep *> (rep);
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	709 body (r->get_data ());
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	710 }
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	711 break;
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	712 case class_vector:
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	713 {
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	714 idx_vector_rep * r = dynamic_cast<idx_vector_rep *> (rep);
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	715 const octave_idx_type *data = r->get_data ();
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	716 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	717 }
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	718 break;
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	719 default:
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	720 assert (false);
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	721 break;
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 }
c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	725
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	726 // 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	727 // single functor body.
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	728 // 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	729 // inlined bodies):
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	730 //
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	731 // 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	732 // if (body (idx(i))) break;
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	733 // return i;
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
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	736 template <class Functor>
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	737 octave_idx_type
8934 c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	738 bloop (octave_idx_type n, Functor body) const
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	739 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	740 octave_idx_type len = rep->length (n), ret;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	741 switch (rep->idx_class ())
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	742 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	743 case class_colon:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	744 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	745 octave_idx_type i;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	746 for (i = 0; i < len && body (i); i++) ;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	747 ret = i;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	748 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	749 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	750 case class_range:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	751 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	752 idx_range_rep * r = dynamic_cast<idx_range_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	753 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	754 octave_idx_type i, j;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	755 if (step == 1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	756 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	757 else if (step == -1)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	758 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	759 else
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	760 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	761 ret = i;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	762 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	763 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	764 case class_scalar:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	765 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	766 idx_scalar_rep * r = dynamic_cast<idx_scalar_rep *> (rep);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	767 ret = body (r->get_data ()) ? 1 : 0;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	768 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	769 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	770 case class_vector:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	771 {
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	772 idx_vector_rep * r = dynamic_cast<idx_vector_rep *> (rep);
8934 c2099a4d12ea partially optimize accumarray Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	773 const octave_idx_type *data = r->get_data ();
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	774 octave_idx_type i;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	775 for (i = 0; i < len && body (data[i]); i++) ;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	776 ret = i;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	777 }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	778 break;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	779 default:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	780 assert (false);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	781 break;
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
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	784 return ret;
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
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	787 // Rationale:
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	788 // 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	789 // 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	790 // 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	791 // equal to A(k)(:).
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	792
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	793 // 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	794 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	795 octave_idx_type nj);
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	796
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	797 bool is_cont_range (octave_idx_type n,
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	798 octave_idx_type& l, octave_idx_type& u) const;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	799
9725 aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	800 // 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	801 // vectors, 1st difference otherwise.
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	802 octave_idx_type increment (void) const;
aea3a3a950e1 implement nth_element Jaroslav Hajek <highegg@gmail.com> parents: 9601 diff changeset	803
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	804 idx_vector
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	805 complement (octave_idx_type n) const;
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	806
8367 445d27d79f4e support permutation matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8333 diff changeset	807 bool is_permutation (octave_idx_type n) const;
445d27d79f4e support permutation matrix objects Jaroslav Hajek <highegg@gmail.com> parents: 8333 diff changeset	808
9479 d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	809 // 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	810 void copy_data (octave_idx_type *data) const;
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	811
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	812 // 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	813 void unconvert (idx_class_type& iclass,
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	814 double& scalar, Range& range, Array<double>& array) const;
d9716e3ee0dd supply optimized compiled sub2ind & ind2sub Jaroslav Hajek <highegg@gmail.com> parents: 8972 diff changeset	815
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	816 // FIXME -- these are here for compatibility. They should be removed
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	817 // when no longer in use.
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	818
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	819 octave_idx_type elem (octave_idx_type n) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	820 { return (*this) (n); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	821
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	822 bool is_colon_equiv (octave_idx_type n, int) const
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	823 { return is_colon_equiv (n); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	824
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	825 octave_idx_type
9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	826 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	827
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	828 void sort (bool uniq = false)
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	829 { *this = sorted (uniq); }
7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	830
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	831 octave_idx_type ones_count (void) const;
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	832
8333 9238637cb81c style fixes John W. Eaton <jwe@octave.org> parents: 8319 diff changeset	833 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	834
1 78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	835 private:
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	836
8290 7cbe01c21986 improve dense array indexing Jaroslav Hajek <highegg@gmail.com> parents: 7573 diff changeset	837 idx_base_rep *rep;
1 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
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	841 #endif
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 /*
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	844 ;;; Local Variables: ***
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	845 ;;; mode: C++ ***
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	846 ;;; End: ***
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe] jwe parents: diff changeset	847 */

Mercurial > hg > octave-lyh

annotate liboctave/idx-vector.h @ 9773:01f897d8a130