Mercurial > hg > octave-nkf
annotate liboctave/Range.h @ 8721:e9cb742df9eb
imported patch sort3.diff
| author | Jaroslav Hajek <highegg@gmail.com> |
|---|---|
| date | Wed, 11 Feb 2009 15:25:53 +0100 |
| parents | 0131fa223dbc |
| children | eb63fbe60fab |
| 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 |
|
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0131fa223dbc
make length invariant in range-scalar ops
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parents:
8553
diff
changeset
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53 // For operators' usage (to preserve element count). |
|
0131fa223dbc
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parents:
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diff
changeset
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54 Range (double b, double i, octave_idx_type n) |
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parents:
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changeset
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55 : rng_base (b), rng_limit (b + n * i), rng_inc (i), |
|
0131fa223dbc
make length invariant in range-scalar ops
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parents:
8553
diff
changeset
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56 rng_nelem (n), cache () { } |
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0131fa223dbc
make length invariant in range-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents:
8553
diff
changeset
|
57 |
| 4811 | 58 double base (void) const { return rng_base; } |
| 1528 | 59 double limit (void) const { return rng_limit; } |
| 4811 | 60 double inc (void) const { return rng_inc; } |
| 5275 | 61 octave_idx_type nelem (void) const { return rng_nelem; } |
| 3 | 62 |
| 2383 | 63 bool all_elements_are_ints (void) const; |
| 64 | |
| 645 | 65 Matrix matrix_value (void) const; |
| 66 | |
| 3 | 67 double min (void) const; |
| 68 double max (void) const; | |
| 69 | |
| 7458 | 70 void sort_internal (bool ascending = true); |
| 71 void sort_internal (Array<octave_idx_type>& sidx, bool ascending = true); | |
| 72 | |
|
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73 Matrix diag (octave_idx_type k = 0) const; |
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74 |
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75 Range sort (octave_idx_type dim = 0, sortmode mode = ASCENDING) const; |
| 7458 | 76 |
| 77 Range sort (Array<octave_idx_type>& sidx, octave_idx_type dim = 0, | |
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parents:
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78 sortmode mode = ASCENDING) const; |
| 208 | 79 |
|
8721
e9cb742df9eb
imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents:
8589
diff
changeset
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80 sortmode is_sorted (sortmode mode = ASCENDING) const; |
|
e9cb742df9eb
imported patch sort3.diff
Jaroslav Hajek <highegg@gmail.com>
parents:
8589
diff
changeset
|
81 |
| 4811 | 82 void set_base (double b) |
| 83 { | |
| 84 if (rng_base != b) | |
| 85 { | |
| 86 rng_base = b; | |
| 87 clear_cache (); | |
| 88 } | |
| 89 } | |
| 90 | |
| 91 void set_limit (double l) | |
| 92 { | |
| 93 if (rng_limit != l) | |
| 94 { | |
| 95 rng_limit = l; | |
| 96 clear_cache (); | |
| 97 } | |
| 98 } | |
| 99 | |
| 100 void set_inc (double i) | |
| 101 { | |
| 102 if (rng_inc != i) | |
| 103 { | |
| 104 rng_inc = i; | |
| 105 clear_cache (); | |
| 106 } | |
| 107 } | |
| 1528 | 108 |
| 6108 | 109 friend OCTAVE_API std::ostream& operator << (std::ostream& os, const Range& r); |
| 110 friend OCTAVE_API std::istream& operator >> (std::istream& is, Range& r); | |
| 3 | 111 |
| 112 void print_range (void); | |
| 113 | |
| 114 private: | |
| 1860 | 115 |
| 208 | 116 double rng_base; |
| 117 double rng_limit; | |
| 118 double rng_inc; | |
| 1860 | 119 |
| 5275 | 120 octave_idx_type rng_nelem; |
| 3 | 121 |
| 4811 | 122 mutable Matrix cache; |
| 123 | |
| 5275 | 124 octave_idx_type nelem_internal (void) const; |
| 4811 | 125 |
| 126 void clear_cache (void) const { cache.resize (0, 0); } | |
| 3 | 127 }; |
| 128 | |
| 6108 | 129 extern OCTAVE_API Range operator - (const Range& r); |
| 2599 | 130 |
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parents:
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131 extern OCTAVE_API Range operator + (double x, const Range& r); |
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parents:
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changeset
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132 |
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parents:
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133 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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134 |
|
c7ff200e45f5
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Jaroslav Hajek <highegg@gmail.com>
parents:
7620
diff
changeset
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135 extern OCTAVE_API Range operator - (double x, const Range& r); |
|
c7ff200e45f5
optimize range-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents:
7620
diff
changeset
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136 |
|
c7ff200e45f5
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Jaroslav Hajek <highegg@gmail.com>
parents:
7620
diff
changeset
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137 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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138 |
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c7ff200e45f5
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Jaroslav Hajek <highegg@gmail.com>
parents:
7620
diff
changeset
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139 extern OCTAVE_API Range operator * (double x, const Range& r); |
|
c7ff200e45f5
optimize range-scalar ops
Jaroslav Hajek <highegg@gmail.com>
parents:
7620
diff
changeset
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140 |
|
c7ff200e45f5
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Jaroslav Hajek <highegg@gmail.com>
parents:
7620
diff
changeset
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141 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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142 |
| 3 | 143 #endif |
| 144 | |
| 145 /* | |
| 146 ;;; Local Variables: *** | |
| 147 ;;; mode: C++ *** | |
| 148 ;;; End: *** | |
| 149 */ |