Mercurial > hg > octave-lyh
annotate liboctave/Range.h @ 8553:c7ff200e45f5
optimize range-scalar ops
| author | Jaroslav Hajek <highegg@gmail.com> |
|---|---|
| date | Wed, 21 Jan 2009 15:50:34 +0100 |
| parents | 36594d5bbe13 |
| children | 0131fa223dbc |
| rev | line source |
|---|---|
| 3 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 1993, 1994, 1995, 1996, 1997, 2000, 2002, 2004, 2005, |
| 4 2006, 2007 John W. Eaton | |
| 3 | 5 |
| 6 This file is part of Octave. | |
| 7 | |
| 8 Octave is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by the | |
| 7016 | 10 Free Software Foundation; either version 3 of the License, or (at your |
| 11 option) any later version. | |
| 3 | 12 |
| 13 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 7016 | 19 along with Octave; see the file COPYING. If not, see |
| 20 <http://www.gnu.org/licenses/>. | |
| 3 | 21 |
| 22 */ | |
| 23 | |
| 382 | 24 #if !defined (octave_Range_h) |
| 25 #define octave_Range_h 1 | |
| 26 | |
| 3503 | 27 #include <iostream> |
| 7458 | 28 |
| 4810 | 29 #include "dMatrix.h" |
| 7458 | 30 #include "oct-sort.h" |
| 3 | 31 |
| 1860 | 32 class |
| 6108 | 33 OCTAVE_API |
| 1860 | 34 Range |
| 3 | 35 { |
| 36 public: | |
| 1860 | 37 |
| 1528 | 38 Range (void) |
| 5347 | 39 : rng_base (0), rng_limit (0), rng_inc (0), rng_nelem (0), cache (1, 0) { } |
| 1528 | 40 |
| 41 Range (const Range& r) | |
| 1860 | 42 : rng_base (r.rng_base), rng_limit (r.rng_limit), rng_inc (r.rng_inc), |
| 4811 | 43 rng_nelem (r.rng_nelem), cache () { } |
| 3 | 44 |
| 1528 | 45 Range (double b, double l) |
| 1860 | 46 : rng_base (b), rng_limit (l), rng_inc (1), |
| 4811 | 47 rng_nelem (nelem_internal ()), cache () { } |
| 1528 | 48 |
| 49 Range (double b, double l, double i) | |
| 1860 | 50 : rng_base (b), rng_limit (l), rng_inc (i), |
| 4811 | 51 rng_nelem (nelem_internal ()), cache () { } |
| 1528 | 52 |
| 4811 | 53 double base (void) const { return rng_base; } |
| 1528 | 54 double limit (void) const { return rng_limit; } |
| 4811 | 55 double inc (void) const { return rng_inc; } |
| 5275 | 56 octave_idx_type nelem (void) const { return rng_nelem; } |
| 3 | 57 |
| 2383 | 58 bool all_elements_are_ints (void) const; |
| 59 | |
| 645 | 60 Matrix matrix_value (void) const; |
| 61 | |
| 3 | 62 double min (void) const; |
| 63 double max (void) const; | |
| 64 | |
| 7458 | 65 void sort_internal (bool ascending = true); |
| 66 void sort_internal (Array<octave_idx_type>& sidx, bool ascending = true); | |
| 67 | |
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68 Matrix diag (octave_idx_type k = 0) const; |
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69 |
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70 Range sort (octave_idx_type dim = 0, sortmode mode = ASCENDING) const; |
| 7458 | 71 |
| 72 Range sort (Array<octave_idx_type>& sidx, octave_idx_type dim = 0, | |
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73 sortmode mode = ASCENDING) const; |
| 208 | 74 |
| 4811 | 75 void set_base (double b) |
| 76 { | |
| 77 if (rng_base != b) | |
| 78 { | |
| 79 rng_base = b; | |
| 80 clear_cache (); | |
| 81 } | |
| 82 } | |
| 83 | |
| 84 void set_limit (double l) | |
| 85 { | |
| 86 if (rng_limit != l) | |
| 87 { | |
| 88 rng_limit = l; | |
| 89 clear_cache (); | |
| 90 } | |
| 91 } | |
| 92 | |
| 93 void set_inc (double i) | |
| 94 { | |
| 95 if (rng_inc != i) | |
| 96 { | |
| 97 rng_inc = i; | |
| 98 clear_cache (); | |
| 99 } | |
| 100 } | |
| 1528 | 101 |
| 6108 | 102 friend OCTAVE_API std::ostream& operator << (std::ostream& os, const Range& r); |
| 103 friend OCTAVE_API std::istream& operator >> (std::istream& is, Range& r); | |
| 3 | 104 |
| 105 void print_range (void); | |
| 106 | |
| 107 private: | |
| 1860 | 108 |
| 208 | 109 double rng_base; |
| 110 double rng_limit; | |
| 111 double rng_inc; | |
| 1860 | 112 |
| 5275 | 113 octave_idx_type rng_nelem; |
| 3 | 114 |
| 4811 | 115 mutable Matrix cache; |
| 116 | |
| 5275 | 117 octave_idx_type nelem_internal (void) const; |
| 4811 | 118 |
| 119 void clear_cache (void) const { cache.resize (0, 0); } | |
| 3 | 120 }; |
| 121 | |
| 6108 | 122 extern OCTAVE_API Range operator - (const Range& r); |
| 2599 | 123 |
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124 extern OCTAVE_API Range operator + (double x, const Range& r); |
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125 |
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126 extern OCTAVE_API Range operator + (const Range& r, double x); |
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127 |
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128 extern OCTAVE_API Range operator - (double x, const Range& r); |
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optimize range-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents:
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129 |
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parents:
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130 extern OCTAVE_API Range operator - (const Range& r, double x); |
|
c7ff200e45f5
optimize range-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents:
7620
diff
changeset
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131 |
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optimize range-scalar ops
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parents:
7620
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changeset
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132 extern OCTAVE_API Range operator * (double x, const Range& r); |
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c7ff200e45f5
optimize range-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents:
7620
diff
changeset
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133 |
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optimize range-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents:
7620
diff
changeset
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134 extern OCTAVE_API Range operator * (const Range& r, double x); |
|
c7ff200e45f5
optimize range-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents:
7620
diff
changeset
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135 |
| 3 | 136 #endif |
| 137 | |
| 138 /* | |
| 139 ;;; Local Variables: *** | |
| 140 ;;; mode: C++ *** | |
| 141 ;;; End: *** | |
| 142 */ |