annotate libinterp/corefcn/bitfcns.cc @ 17390:4bcd301754ce

Add Matlab-compatible flintmax function * bitfcns.cc (Fflintmax): New function based on bitmax. (Fbitmax, Fintmax, Fintmin): Update seealso to refer to flintmax. * numbers.txi: Include flintmax docstring.
author Mike Miller <mtmiller@ieee.org>
date Sun, 08 Sep 2013 17:28:05 -0400
parents dbdff94bf977
children e09cd91168d1
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1 /*
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2
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3 Copyright (C) 2004-2012 John W. Eaton
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4
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5 This file is part of Octave.
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6
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
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21 */
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22
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
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23 #ifdef HAVE_CONFIG_H
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24 #include <config.h>
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25 #endif
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26
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27 #include "str-vec.h"
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28 #include "quit.h"
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29
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30 #include "defun.h"
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31 #include "error.h"
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32 #include "ov.h"
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33 #include "ov-uint64.h"
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34 #include "ov-uint32.h"
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35 #include "ov-uint16.h"
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36 #include "ov-uint8.h"
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37 #include "ov-int64.h"
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38 #include "ov-int32.h"
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39 #include "ov-int16.h"
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40 #include "ov-int8.h"
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41 #include "ov-scalar.h"
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42 #include "ov-re-mat.h"
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43 #include "ov-bool.h"
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44
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45 #include <functional>
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46
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47 #if !defined (HAVE_CXX_BITWISE_OP_TEMPLATES)
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48 namespace std
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49 {
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50 template <typename T>
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51 struct bit_and
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52 {
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53 public:
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54 T operator() (const T & op1, const T & op2) const { return (op1 & op2); }
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55 };
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56
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57 template <typename T>
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58 struct bit_or
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59 {
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60 public:
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61 T operator() (const T & op1, const T & op2) const { return (op1 | op2); }
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62 };
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63
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64 template <typename T>
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65 struct bit_xor
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66 {
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67 public:
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68 T operator() (const T & op1, const T & op2) const { return (op1 ^ op2); }
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69 };
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70 }
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71 #endif
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72
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73 template <typename OP, typename T>
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74 octave_value
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75 bitopxx (const OP& op, const std::string& fname,
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76 const Array<T>& x, const Array<T>& y)
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77 {
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78 int nelx = x.numel ();
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79 int nely = y.numel ();
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80
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81 bool is_scalar_op = (nelx == 1 || nely == 1);
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82
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83 dim_vector dvx = x.dims ();
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84 dim_vector dvy = y.dims ();
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85
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86 bool is_array_op = (dvx == dvy);
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87
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88 octave_value retval;
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89 if (is_array_op || is_scalar_op)
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90 {
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91 Array<T> result;
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92
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93 if (nelx != 1)
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94 result.resize (dvx);
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95 else
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96 result.resize (dvy);
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97
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98 for (int i = 0; i < nelx; i++)
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99 if (is_scalar_op)
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100 for (int k = 0; k < nely; k++)
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101 result(i+k) = op (x(i), y(k));
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102 else
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103 result(i) = op (x(i), y(i));
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104
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105 retval = result;
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106 }
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107 else
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108 error ("%s: size of X and Y must match, or one operand must be a scalar",
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109 fname.c_str ());
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110
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111 return retval;
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112 }
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113
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114 // Trampoline function, instantiates the proper template above, with
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115 // reflective information hardwired. We can't hardwire this information
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116 // in Fbitxxx DEFUNs below, because at that moment, we still don't have
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117 // information about which integer types we need to instantiate.
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118 template<typename T>
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119 octave_value
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120 bitopx (const std::string& fname, const Array<T>& x, const Array<T>& y)
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121 {
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122 if (fname == "bitand")
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123 return bitopxx (std::bit_and<T>(), fname, x, y);
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124 if (fname == "bitor")
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125 return bitopxx (std::bit_or<T>(), fname, x, y);
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126
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127 //else (fname == "bitxor")
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128 return bitopxx (std::bit_xor<T>(), fname, x, y);
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129 }
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130
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131 octave_value
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Rik <octave@nomad.inbox5.com>
parents: 14846
diff changeset
132 bitop (const std::string& fname, const octave_value_list& args)
14631
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
133 {
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
134 octave_value retval;
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
135
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
136 int nargin = args.length ();
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
137
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
138 if (nargin == 2)
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
139 {
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
140 if ((args(0).class_name () == octave_scalar::static_class_name ())
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
141 || (args(0).class_name () == octave_bool::static_class_name ())
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
142 || (args(1).class_name () == octave_scalar::static_class_name ())
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
143 || (args(1).class_name () == octave_bool::static_class_name ()))
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
144 {
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
145 bool arg0_is_int = (args(0).class_name () !=
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
146 octave_scalar::static_class_name () &&
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
147 args(0).class_name () !=
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
148 octave_bool::static_class_name ());
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
149 bool arg1_is_int = (args(1).class_name () !=
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
150 octave_scalar::static_class_name () &&
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
151 args(1).class_name () !=
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
152 octave_bool::static_class_name ());
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
153
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
154 if (! (arg0_is_int || arg1_is_int))
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
155 {
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
156 uint64NDArray x (args(0).array_value ());
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
157 uint64NDArray y (args(1).array_value ());
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
158 if (! error_state)
14846
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents: 14725
diff changeset
159 retval = bitopx (fname, x, y).array_value ();
14631
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Jordi Gutiérrez Hermoso <jordigh@octave.org>
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160 }
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
161 else
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
162 {
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
163 int p = (arg0_is_int ? 1 : 0);
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
164 int q = (arg0_is_int ? 0 : 1);
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
165
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
166 NDArray dx = args(p).array_value ();
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
167
14631
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Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
168 if (args(q).type_id () == octave_uint64_matrix::static_type_id ()
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
169 || args(q).type_id () == octave_uint64_scalar::static_type_id ())
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
170 {
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
171 uint64NDArray x (dx);
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
172 uint64NDArray y = args(q).uint64_array_value ();
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
173 if (! error_state)
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
174 retval = bitopx (fname, x, y);
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
175 }
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
176 else if (args(q).type_id () == octave_uint32_matrix::static_type_id ()
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
177 || args(q).type_id () == octave_uint32_scalar::static_type_id ())
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
178 {
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
179 uint32NDArray x (dx);
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
180 uint32NDArray y = args(q).uint32_array_value ();
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
181 if (! error_state)
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
182 retval = bitopx (fname, x, y);
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
183 }
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
184 else if (args(q).type_id () == octave_uint16_matrix::static_type_id ()
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
185 || args(q).type_id () == octave_uint16_scalar::static_type_id ())
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
186 {
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
187 uint16NDArray x (dx);
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
188 uint16NDArray y = args(q).uint16_array_value ();
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
189 if (! error_state)
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
190 retval = bitopx (fname, x, y);
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
191 }
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
192 else if (args(q).type_id () == octave_uint8_matrix::static_type_id ()
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
193 || args(q).type_id () == octave_uint8_scalar::static_type_id ())
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
194 {
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
195 uint8NDArray x (dx);
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
196 uint8NDArray y = args(q).uint8_array_value ();
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
197 if (! error_state)
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
198 retval = bitopx (fname, x, y);
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
199 }
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
200 else if (args(q).type_id () == octave_int64_matrix::static_type_id ()
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
201 || args(q).type_id () == octave_int64_scalar::static_type_id ())
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
202 {
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
203 int64NDArray x (dx);
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
204 int64NDArray y = args(q).int64_array_value ();
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
205 if (! error_state)
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
206 retval = bitopx (fname, x, y);
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
207 }
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
208 else if (args(q).type_id () == octave_int32_matrix::static_type_id ()
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
209 || args(q).type_id () == octave_int32_scalar::static_type_id ())
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
210 {
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
211 int32NDArray x (dx);
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
212 int32NDArray y = args(q).int32_array_value ();
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
213 if (! error_state)
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
214 retval = bitopx (fname, x, y);
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
215 }
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
216 else if (args(q).type_id () == octave_int16_matrix::static_type_id ()
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
217 || args(q).type_id () == octave_int16_scalar::static_type_id ())
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
218 {
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
219 int16NDArray x (dx);
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
220 int16NDArray y = args(q).int16_array_value ();
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
221 if (! error_state)
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
222 retval = bitopx (fname, x, y);
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
223 }
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
224 else if (args(q).type_id () == octave_int8_matrix::static_type_id ()
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
225 || args(q).type_id () == octave_int8_scalar::static_type_id ())
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
226 {
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
227 int8NDArray x (dx);
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
228 int8NDArray y = args(q).int8_array_value ();
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
229 if (! error_state)
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
230 retval = bitopx (fname, x, y);
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
231 }
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
232 else
14846
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents: 14725
diff changeset
233 error ("%s: invalid operand type", fname.c_str ());
14631
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
234 }
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
235 }
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
236 else if (args(0).class_name () == args(1).class_name ())
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
237 {
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
238 if (args(0).type_id () == octave_uint64_matrix::static_type_id ()
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
239 || args(0).type_id () == octave_uint64_scalar::static_type_id ())
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
240 {
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
241 uint64NDArray x = args(0).uint64_array_value ();
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
242 uint64NDArray y = args(1).uint64_array_value ();
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
243 if (! error_state)
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
244 retval = bitopx (fname, x, y);
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
245 }
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
246 else if (args(0).type_id () == octave_uint32_matrix::static_type_id ()
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
247 || args(0).type_id () == octave_uint32_scalar::static_type_id ())
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
248 {
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
249 uint32NDArray x = args(0).uint32_array_value ();
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
250 uint32NDArray y = args(1).uint32_array_value ();
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
251 if (! error_state)
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
252 retval = bitopx (fname, x, y);
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
253 }
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
254 else if (args(0).type_id () == octave_uint16_matrix::static_type_id ()
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
255 || args(0).type_id () == octave_uint16_scalar::static_type_id ())
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
256 {
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
257 uint16NDArray x = args(0).uint16_array_value ();
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
258 uint16NDArray y = args(1).uint16_array_value ();
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
259 if (! error_state)
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
260 retval = bitopx (fname, x, y);
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
261 }
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
262 else if (args(0).type_id () == octave_uint8_matrix::static_type_id ()
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
263 || args(0).type_id () == octave_uint8_scalar::static_type_id ())
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
264 {
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
265 uint8NDArray x = args(0).uint8_array_value ();
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
266 uint8NDArray y = args(1).uint8_array_value ();
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
267 if (! error_state)
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
268 retval = bitopx (fname, x, y);
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
269 }
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
270 else if (args(0).type_id () == octave_int64_matrix::static_type_id ()
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
271 || args(0).type_id () == octave_int64_scalar::static_type_id ())
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
272 {
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
273 int64NDArray x = args(0).int64_array_value ();
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
274 int64NDArray y = args(1).int64_array_value ();
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
275 if (! error_state)
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
276 retval = bitopx (fname, x, y);
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
277 }
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
278 else if (args(0).type_id () == octave_int32_matrix::static_type_id ()
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
279 || args(0).type_id () == octave_int32_scalar::static_type_id ())
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
280 {
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
281 int32NDArray x = args(0).int32_array_value ();
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
282 int32NDArray y = args(1).int32_array_value ();
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
283 if (! error_state)
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
284 retval = bitopx (fname, x, y);
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
285 }
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
286 else if (args(0).type_id () == octave_int16_matrix::static_type_id ()
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
287 || args(0).type_id () == octave_int16_scalar::static_type_id ())
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
288 {
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
289 int16NDArray x = args(0).int16_array_value ();
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
290 int16NDArray y = args(1).int16_array_value ();
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
291 if (! error_state)
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
292 retval = bitopx (fname, x, y);
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
293 }
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
294 else if (args(0).type_id () == octave_int8_matrix::static_type_id ()
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
295 || args(0).type_id () == octave_int8_scalar::static_type_id ())
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
296 {
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
297 int8NDArray x = args(0).int8_array_value ();
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
298 int8NDArray y = args(1).int8_array_value ();
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
299 if (! error_state)
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
300 retval = bitopx (fname, x, y);
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
301 }
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
302 else
14846
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents: 14725
diff changeset
303 error ("%s: invalid operand type", fname.c_str ());
14631
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
304 }
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
305 else
14846
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents: 14725
diff changeset
306 error ("%s: must have matching operand types", fname.c_str ());
14631
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
307 }
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
308 else
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
309 print_usage ();
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
310
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
311 return retval;
57e4ff70b7c1 Use more templates in bitwise operators. Death to macros! ☠
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 14138
diff changeset
312 }
4908
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parents:
diff changeset
313
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
314 DEFUN (bitand, args, ,
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
315 "-*- texinfo -*-\n\
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
316 @deftypefn {Built-in Function} {} bitand (@var{x}, @var{y})\n\
9209
923c7cb7f13f Simplify TeXinfo files by eliminating redundant @iftex followed by @tex construction.
Rik <rdrider0-list@yahoo.com>
parents: 9064
diff changeset
317 Return the bitwise AND of non-negative integers.\n\
8828
8463d1a2e544 Doc fixes.
Brian Gough <bjg@network-theory.co.uk>
parents: 8492
diff changeset
318 @var{x}, @var{y} must be in the range [0,bitmax]\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5307
diff changeset
319 @seealso{bitor, bitxor, bitset, bitget, bitcmp, bitshift, bitmax}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5307
diff changeset
320 @end deftypefn")
4908
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jwe
parents:
diff changeset
321 {
14631
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parents: 14138
diff changeset
322 return bitop ("bitand", args);
4908
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parents:
diff changeset
323 }
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
324
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
325 DEFUN (bitor, args, ,
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
326 "-*- texinfo -*-\n\
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
327 @deftypefn {Built-in Function} {} bitor (@var{x}, @var{y})\n\
9209
923c7cb7f13f Simplify TeXinfo files by eliminating redundant @iftex followed by @tex construction.
Rik <rdrider0-list@yahoo.com>
parents: 9064
diff changeset
328 Return the bitwise OR of non-negative integers.\n\
8828
8463d1a2e544 Doc fixes.
Brian Gough <bjg@network-theory.co.uk>
parents: 8492
diff changeset
329 @var{x}, @var{y} must be in the range [0,bitmax]\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5307
diff changeset
330 @seealso{bitor, bitxor, bitset, bitget, bitcmp, bitshift, bitmax}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5307
diff changeset
331 @end deftypefn")
4908
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jwe
parents:
diff changeset
332 {
14631
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parents: 14138
diff changeset
333 return bitop ("bitor", args);
4908
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jwe
parents:
diff changeset
334 }
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
335
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
336 DEFUN (bitxor, args, ,
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
337 "-*- texinfo -*-\n\
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
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diff changeset
338 @deftypefn {Built-in Function} {} bitxor (@var{x}, @var{y})\n\
9209
923c7cb7f13f Simplify TeXinfo files by eliminating redundant @iftex followed by @tex construction.
Rik <rdrider0-list@yahoo.com>
parents: 9064
diff changeset
339 Return the bitwise XOR of non-negative integers.\n\
8828
8463d1a2e544 Doc fixes.
Brian Gough <bjg@network-theory.co.uk>
parents: 8492
diff changeset
340 @var{x}, @var{y} must be in the range [0,bitmax]\n\
5642
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jwe
parents: 5307
diff changeset
341 @seealso{bitand, bitor, bitset, bitget, bitcmp, bitshift, bitmax}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5307
diff changeset
342 @end deftypefn")
4908
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parents:
diff changeset
343 {
14631
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parents: 14138
diff changeset
344 return bitop ("bitxor", args);
4908
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diff changeset
345 }
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
346
17389
dbdff94bf977 Use std::numeric_limits for floating point bit widths
Mike Miller <mtmiller@ieee.org>
parents: 17281
diff changeset
347 template <typename T>
dbdff94bf977 Use std::numeric_limits for floating point bit widths
Mike Miller <mtmiller@ieee.org>
parents: 17281
diff changeset
348 static int64_t
dbdff94bf977 Use std::numeric_limits for floating point bit widths
Mike Miller <mtmiller@ieee.org>
parents: 17281
diff changeset
349 max_mantissa_value ()
dbdff94bf977 Use std::numeric_limits for floating point bit widths
Mike Miller <mtmiller@ieee.org>
parents: 17281
diff changeset
350 {
dbdff94bf977 Use std::numeric_limits for floating point bit widths
Mike Miller <mtmiller@ieee.org>
parents: 17281
diff changeset
351 return (static_cast<int64_t> (1) << std::numeric_limits<T>::digits) - 1;
dbdff94bf977 Use std::numeric_limits for floating point bit widths
Mike Miller <mtmiller@ieee.org>
parents: 17281
diff changeset
352 }
dbdff94bf977 Use std::numeric_limits for floating point bit widths
Mike Miller <mtmiller@ieee.org>
parents: 17281
diff changeset
353
5828
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parents: 5823
diff changeset
354 static int64_t
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jwe
parents: 5823
diff changeset
355 bitshift (double a, int n, int64_t mask)
4908
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diff changeset
356 {
6108
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parents: 5828
diff changeset
357 // In the name of bug-for-bug compatibility.
143b556ce725 [project @ 2006-10-27 01:45:54 by jwe]
jwe
parents: 5828
diff changeset
358 if (a < 0)
143b556ce725 [project @ 2006-10-27 01:45:54 by jwe]
jwe
parents: 5828
diff changeset
359 return -bitshift (-a, n, mask);
143b556ce725 [project @ 2006-10-27 01:45:54 by jwe]
jwe
parents: 5828
diff changeset
360
4915
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diff changeset
361 if (n > 0)
5828
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parents: 5823
diff changeset
362 return (static_cast<int64_t> (a) << n) & mask;
4915
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jwe
parents: 4908
diff changeset
363 else if (n < 0)
5828
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jwe
parents: 5823
diff changeset
364 return (static_cast<int64_t> (a) >> -n) & mask;
4915
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jwe
parents: 4908
diff changeset
365 else
5828
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parents: 5823
diff changeset
366 return static_cast<int64_t> (a) & mask;
4908
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diff changeset
367 }
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368
7789
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369 static int64_t
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370 bitshift (float a, int n, int64_t mask)
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371 {
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372 // In the name of bug-for-bug compatibility.
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373 if (a < 0)
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374 return -bitshift (-a, n, mask);
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375
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376 if (n > 0)
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377 return (static_cast<int64_t> (a) << n) & mask;
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378 else if (n < 0)
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379 return (static_cast<int64_t> (a) >> -n) & mask;
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380 else
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381 return static_cast<int64_t> (a) & mask;
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382 }
82be108cc558 First attempt at single precision tyeps
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383
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384 // Note that the bitshift operators are undefined if shifted by more
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385 // bits than in the type, so we need to test for the size of the
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386 // shift.
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387
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388 #define DO_BITSHIFT(T) \
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389 if (! error_state) \
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390 { \
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391 double d1, d2; \
4908
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392 \
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393 if (n.all_integers (d1, d2)) \
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parents: 10160
diff changeset
394 { \
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395 int m_nel = m.numel (); \
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396 int n_nel = n.numel (); \
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397 \
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398 bool is_scalar_op = (m_nel == 1 || n_nel == 1); \
4908
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399 \
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400 dim_vector m_dv = m.dims (); \
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401 dim_vector n_dv = n.dims (); \
4919
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402 \
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403 bool is_array_op = (m_dv == n_dv); \
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404 \
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405 if (is_array_op || is_scalar_op) \
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parents: 10160
diff changeset
406 { \
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407 T ## NDArray result; \
4908
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408 \
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409 if (m_nel != 1) \
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diff changeset
410 result.resize (m_dv); \
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411 else \
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412 result.resize (n_dv); \
4908
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413 \
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diff changeset
414 for (int i = 0; i < m_nel; i++) \
57a59eae83cc untabify src C++ source files
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parents: 10160
diff changeset
415 if (is_scalar_op) \
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parents: 10160
diff changeset
416 for (int k = 0; k < n_nel; k++) \
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diff changeset
417 if (static_cast<int> (n(k)) >= bits_in_type) \
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418 result(i+k) = 0; \
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419 else \
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420 result(i+k) = bitshift (m(i), static_cast<int> (n(k)), mask); \
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diff changeset
421 else \
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parents: 10160
diff changeset
422 if (static_cast<int> (n(i)) >= bits_in_type) \
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423 result(i) = 0; \
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diff changeset
424 else \
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425 result(i) = bitshift (m(i), static_cast<int> (n(i)), mask); \
4908
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426 \
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diff changeset
427 retval = result; \
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428 } \
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diff changeset
429 else \
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diff changeset
430 error ("bitshift: size of A and N must match, or one operand must be a scalar"); \
57a59eae83cc untabify src C++ source files
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parents: 10160
diff changeset
431 } \
4919
a1073eef650c [project @ 2004-07-27 15:22:50 by jwe]
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432 else \
12483
7a5aacf65f81 Rewrite error strings in src/ to use variables named in documentation.
Rik <octave@nomad.inbox5.com>
parents: 11586
diff changeset
433 error ("bitshift: expecting integer as second argument"); \
4919
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434 }
4915
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diff changeset
435
4919
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diff changeset
436 #define DO_UBITSHIFT(T, N) \
a1073eef650c [project @ 2004-07-27 15:22:50 by jwe]
jwe
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diff changeset
437 do \
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diff changeset
438 { \
4920
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diff changeset
439 int bits_in_type = octave_ ## T :: nbits (); \
4919
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diff changeset
440 T ## NDArray m = m_arg.T ## _array_value (); \
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parents: 10160
diff changeset
441 octave_ ## T mask = octave_ ## T::max (); \
4920
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442 if ((N) < bits_in_type) \
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diff changeset
443 mask = bitshift (mask, (N) - bits_in_type); \
4919
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444 else if ((N) < 1) \
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445 mask = 0; \
4919
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446 DO_BITSHIFT (T); \
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447 } \
4915
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448 while (0)
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449
4919
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diff changeset
450 #define DO_SBITSHIFT(T, N) \
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jwe
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451 do \
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diff changeset
452 { \
4920
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diff changeset
453 int bits_in_type = octave_ ## T :: nbits (); \
4919
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diff changeset
454 T ## NDArray m = m_arg.T ## _array_value (); \
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57a59eae83cc untabify src C++ source files
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parents: 10160
diff changeset
455 octave_ ## T mask = octave_ ## T::max (); \
4920
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jwe
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diff changeset
456 if ((N) < bits_in_type) \
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57a59eae83cc untabify src C++ source files
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diff changeset
457 mask = bitshift (mask, (N) - bits_in_type); \
4919
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diff changeset
458 else if ((N) < 1) \
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459 mask = 0; \
9440
357cff83985d fix signed integer shift
Jaroslav Hajek <highegg@gmail.com>
parents: 9209
diff changeset
460 mask = mask | octave_ ## T :: min (); /* FIXME: 2's complement only? */ \
4919
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diff changeset
461 DO_BITSHIFT (T); \
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462 } \
4908
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parents:
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463 while (0)
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
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parents:
diff changeset
464
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
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parents:
diff changeset
465 DEFUN (bitshift, args, ,
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
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diff changeset
466 "-*- texinfo -*-\n\
10840
89f4d7e294cc Grammarcheck .cc files
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parents: 10830
diff changeset
467 @deftypefn {Built-in Function} {} bitshift (@var{a}, @var{k})\n\
6678
49724abe1236 [project @ 2007-05-31 19:44:45 by jwe]
jwe
parents: 6439
diff changeset
468 @deftypefnx {Built-in Function} {} bitshift (@var{a}, @var{k}, @var{n})\n\
8492
9e18aff77e9e [docs] remove
Brian Gough <bjg@gnu.org>
parents: 8347
diff changeset
469 Return a @var{k} bit shift of @var{n}-digit unsigned\n\
13922
6da23a2d7afc doc: Update bitshift() docstring
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parents: 12642
diff changeset
470 integers in @var{a}. A positive @var{k} leads to a left shift;\n\
4920
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parents: 4919
diff changeset
471 A negative value to a right shift. If @var{n} is omitted it defaults\n\
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jwe
parents: 4919
diff changeset
472 to log2(bitmax)+1.\n\
13922
6da23a2d7afc doc: Update bitshift() docstring
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parents: 12642
diff changeset
473 @var{n} must be in the range [1,log2(bitmax)+1] usually [1,33].\n\
4908
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diff changeset
474 \n\
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
475 @example\n\
9064
7c02ec148a3c Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents: 8920
diff changeset
476 @group\n\
7097
e8c94e473c68 [project @ 2007-11-02 17:24:23 by jwe]
jwe
parents: 7017
diff changeset
477 bitshift (eye (3), 1)\n\
4908
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
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parents:
diff changeset
478 @result{}\n\
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jwe
parents:
diff changeset
479 @group\n\
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
480 2 0 0\n\
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jwe
parents:
diff changeset
481 0 2 0\n\
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jwe
parents:
diff changeset
482 0 0 2\n\
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
483 @end group\n\
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
484 \n\
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
485 bitshift (10, [-2, -1, 0, 1, 2])\n\
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jwe
parents:
diff changeset
486 @result{} 2 5 10 20 40\n\
6439
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parents: 6108
diff changeset
487 @c FIXME -- restore this example when third arg is allowed to be an array.\n\
12642
f96b9b9f141b doc: Periodic grammarcheck and spellcheck of documentation.
Rik <octave@nomad.inbox5.com>
parents: 12483
diff changeset
488 @c\n\
f96b9b9f141b doc: Periodic grammarcheck and spellcheck of documentation.
Rik <octave@nomad.inbox5.com>
parents: 12483
diff changeset
489 @c\n\
6439
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jwe
parents: 6108
diff changeset
490 @c bitshift ([1, 10], 2, [3,4])\n\
a37c427ae9d1 [project @ 2007-03-23 15:04:01 by jwe]
jwe
parents: 6108
diff changeset
491 @c @result{} 4 8\n\
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Rik <rdrider0-list@yahoo.com>
parents: 8920
diff changeset
492 @end group\n\
4908
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diff changeset
493 @end example\n\
5642
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parents: 5307
diff changeset
494 @seealso{bitand, bitor, bitxor, bitset, bitget, bitcmp, bitmax}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
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parents: 5307
diff changeset
495 @end deftypefn")
4908
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parents:
diff changeset
496 {
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parents:
diff changeset
497 octave_value retval;
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
498
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
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parents:
diff changeset
499 int nargin = args.length ();
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
500
4915
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diff changeset
501 if (nargin == 2 || nargin == 3)
4908
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jwe
parents:
diff changeset
502 {
4915
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diff changeset
503 int nbits = 64;
11586
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parents: 11523
diff changeset
504
4920
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diff changeset
505 NDArray n = args(1).array_value ();
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diff changeset
506
b22a7a1db0d5 [project @ 2004-07-27 18:15:25 by jwe]
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parents: 4919
diff changeset
507 if (error_state)
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diff changeset
508 error ("bitshift: expecting integer as second argument");
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diff changeset
509 else
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diff changeset
510 {
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parents: 10160
diff changeset
511 if (nargin == 3)
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diff changeset
512 {
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diff changeset
513 // FIXME -- for compatibility, we should accept an array
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
514 // or a scalar as the third argument.
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
515 if (args(2).numel () > 1)
12483
7a5aacf65f81 Rewrite error strings in src/ to use variables named in documentation.
Rik <octave@nomad.inbox5.com>
parents: 11586
diff changeset
516 error ("bitshift: N must be a scalar integer");
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
517 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
518 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
519 nbits = args(2).int_value ();
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
520
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
521 if (error_state)
12483
7a5aacf65f81 Rewrite error strings in src/ to use variables named in documentation.
Rik <octave@nomad.inbox5.com>
parents: 11586
diff changeset
522 error ("bitshift: N must be an integer");
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
523 else if (nbits < 0)
12483
7a5aacf65f81 Rewrite error strings in src/ to use variables named in documentation.
Rik <octave@nomad.inbox5.com>
parents: 11586
diff changeset
524 error ("bitshift: N must be positive");
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
525 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
526 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
527 }
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
528
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
529 if (error_state)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
530 return retval;
4908
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
531
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
532 octave_value m_arg = args(0);
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
533 std::string cname = m_arg.class_name ();
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
534
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
535 if (cname == "uint8")
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
536 DO_UBITSHIFT (uint8, nbits < 8 ? nbits : 8);
4908
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
537 else if (cname == "uint16")
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
538 DO_UBITSHIFT (uint16, nbits < 16 ? nbits : 16);
4908
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
539 else if (cname == "uint32")
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
540 DO_UBITSHIFT (uint32, nbits < 32 ? nbits : 32);
4908
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
541 else if (cname == "uint64")
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
542 DO_UBITSHIFT (uint64, nbits < 64 ? nbits : 64);
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
543 else if (cname == "int8")
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
544 DO_SBITSHIFT (int8, nbits < 8 ? nbits : 8);
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
545 else if (cname == "int16")
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
546 DO_SBITSHIFT (int16, nbits < 16 ? nbits : 16);
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
547 else if (cname == "int32")
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
548 DO_SBITSHIFT (int32, nbits < 32 ? nbits : 32);
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
549 else if (cname == "int64")
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
550 DO_SBITSHIFT (int64, nbits < 64 ? nbits : 64);
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
551 else if (cname == "double")
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
552 {
17389
dbdff94bf977 Use std::numeric_limits for floating point bit widths
Mike Miller <mtmiller@ieee.org>
parents: 17281
diff changeset
553 static const int bits_in_mantissa = std::numeric_limits<double>::digits;
dbdff94bf977 Use std::numeric_limits for floating point bit widths
Mike Miller <mtmiller@ieee.org>
parents: 17281
diff changeset
554 nbits = (nbits < bits_in_mantissa ? nbits : bits_in_mantissa);
dbdff94bf977 Use std::numeric_limits for floating point bit widths
Mike Miller <mtmiller@ieee.org>
parents: 17281
diff changeset
555 int64_t mask = max_mantissa_value<double> ();
dbdff94bf977 Use std::numeric_limits for floating point bit widths
Mike Miller <mtmiller@ieee.org>
parents: 17281
diff changeset
556 if (nbits < bits_in_mantissa)
dbdff94bf977 Use std::numeric_limits for floating point bit widths
Mike Miller <mtmiller@ieee.org>
parents: 17281
diff changeset
557 mask = mask >> (bits_in_mantissa - nbits);
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
558 else if (nbits < 1)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
559 mask = 0;
17389
dbdff94bf977 Use std::numeric_limits for floating point bit widths
Mike Miller <mtmiller@ieee.org>
parents: 17281
diff changeset
560 int bits_in_type = sizeof (double) * CHAR_BIT;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
561 NDArray m = m_arg.array_value ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
562 DO_BITSHIFT ( );
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
563 }
4908
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
564 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10160
diff changeset
565 error ("bitshift: not defined for %s objects", cname.c_str ());
4908
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
566 }
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
567 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
568 print_usage ();
4908
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
569
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
570 return retval;
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
571 }
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
572
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
573 DEFUN (bitmax, args, ,
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
574 "-*- texinfo -*-\n\
10897
dbec9d590756 Add CLASS argument to bitmax
Rik <octave@nomad.inbox5.com>
parents: 10895
diff changeset
575 @deftypefn {Built-in Function} {} bitmax ()\n\
dbec9d590756 Add CLASS argument to bitmax
Rik <octave@nomad.inbox5.com>
parents: 10895
diff changeset
576 @deftypefnx {Built-in Function} {} bitmax (\"double\")\n\
dbec9d590756 Add CLASS argument to bitmax
Rik <octave@nomad.inbox5.com>
parents: 10895
diff changeset
577 @deftypefnx {Built-in Function} {} bitmax (\"single\")\n\
dbec9d590756 Add CLASS argument to bitmax
Rik <octave@nomad.inbox5.com>
parents: 10895
diff changeset
578 Return the largest integer that can be represented within a floating point\n\
17281
bc924baa2c4e doc: Add new @qcode macro for code samples which are quoted.
Rik <rik@octave.org>
parents: 16939
diff changeset
579 value. The default class is @qcode{\"double\"}, but @qcode{\"single\"} is a\n\
bc924baa2c4e doc: Add new @qcode macro for code samples which are quoted.
Rik <rik@octave.org>
parents: 16939
diff changeset
580 valid option. On IEEE-754 compatible systems, @code{bitmax} is\n\
bc924baa2c4e doc: Add new @qcode macro for code samples which are quoted.
Rik <rik@octave.org>
parents: 16939
diff changeset
581 @w{@math{2^{53} - 1}} for @qcode{\"double\"} and @w{@math{2^{24} -1}} for\n\
bc924baa2c4e doc: Add new @qcode macro for code samples which are quoted.
Rik <rik@octave.org>
parents: 16939
diff changeset
582 @qcode{\"single\"}.\n\
17390
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
583 @seealso{flintmax, intmax, realmax, realmin}\n\
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
584 @end deftypefn")
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
585 {
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
586 octave_value retval;
10897
dbec9d590756 Add CLASS argument to bitmax
Rik <octave@nomad.inbox5.com>
parents: 10895
diff changeset
587 std::string cname = "double";
dbec9d590756 Add CLASS argument to bitmax
Rik <octave@nomad.inbox5.com>
parents: 10895
diff changeset
588 int nargin = args.length ();
dbec9d590756 Add CLASS argument to bitmax
Rik <octave@nomad.inbox5.com>
parents: 10895
diff changeset
589
dbec9d590756 Add CLASS argument to bitmax
Rik <octave@nomad.inbox5.com>
parents: 10895
diff changeset
590 if (nargin == 1 && args(0).is_string ())
dbec9d590756 Add CLASS argument to bitmax
Rik <octave@nomad.inbox5.com>
parents: 10895
diff changeset
591 cname = args(0).string_value ();
dbec9d590756 Add CLASS argument to bitmax
Rik <octave@nomad.inbox5.com>
parents: 10895
diff changeset
592 else if (nargin != 0)
dbec9d590756 Add CLASS argument to bitmax
Rik <octave@nomad.inbox5.com>
parents: 10895
diff changeset
593 {
dbec9d590756 Add CLASS argument to bitmax
Rik <octave@nomad.inbox5.com>
parents: 10895
diff changeset
594 print_usage ();
dbec9d590756 Add CLASS argument to bitmax
Rik <octave@nomad.inbox5.com>
parents: 10895
diff changeset
595 return retval;
dbec9d590756 Add CLASS argument to bitmax
Rik <octave@nomad.inbox5.com>
parents: 10895
diff changeset
596 }
dbec9d590756 Add CLASS argument to bitmax
Rik <octave@nomad.inbox5.com>
parents: 10895
diff changeset
597
dbec9d590756 Add CLASS argument to bitmax
Rik <octave@nomad.inbox5.com>
parents: 10895
diff changeset
598 if (cname == "double")
17389
dbdff94bf977 Use std::numeric_limits for floating point bit widths
Mike Miller <mtmiller@ieee.org>
parents: 17281
diff changeset
599 retval = (static_cast<double> (max_mantissa_value<double> ()));
10897
dbec9d590756 Add CLASS argument to bitmax
Rik <octave@nomad.inbox5.com>
parents: 10895
diff changeset
600 else if (cname == "single")
17389
dbdff94bf977 Use std::numeric_limits for floating point bit widths
Mike Miller <mtmiller@ieee.org>
parents: 17281
diff changeset
601 retval = (static_cast<float> (max_mantissa_value<float> ()));
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
602 else
10897
dbec9d590756 Add CLASS argument to bitmax
Rik <octave@nomad.inbox5.com>
parents: 10895
diff changeset
603 error ("bitmax: not defined for class '%s'", cname.c_str ());
dbec9d590756 Add CLASS argument to bitmax
Rik <octave@nomad.inbox5.com>
parents: 10895
diff changeset
604
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
605 return retval;
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
606 }
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
607
17390
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
608 DEFUN (flintmax, args, ,
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
609 "-*- texinfo -*-\n\
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
610 @deftypefn {Built-in Function} {} flintmax ()\n\
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
611 @deftypefnx {Built-in Function} {} flintmax (\"double\")\n\
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
612 @deftypefnx {Built-in Function} {} flintmax (\"single\")\n\
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
613 Return the largest integer that can be represented consecutively in a\n\
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
614 floating point value. The default class is @qcode{\"double\"}, but @qcode{\"single\"}\n\
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
615 is a valid option. On IEEE-754 compatible systems, @code{flintmax} is @w{@math{2^53}}\n\
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
616 for @qcode{\"double\"} and @w{@math{2^24}} for @qcode{\"single\"}.\n\
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
617 @seealso{bitmax, intmax, realmax, realmin}\n\
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
618 @end deftypefn")
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
619 {
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
620 octave_value retval;
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
621 std::string cname = "double";
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
622 int nargin = args.length ();
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
623
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
624 if (nargin == 1 && args(0).is_string ())
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
625 cname = args(0).string_value ();
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
626 else if (nargin != 0)
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
627 {
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
628 print_usage ();
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
629 return retval;
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
630 }
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
631
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
632 if (cname == "double")
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
633 retval = (static_cast<double> (max_mantissa_value<double> () + 1));
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
634 else if (cname == "single")
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
635 retval = (static_cast<float> (max_mantissa_value<float> () + 1));
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
636 else
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
637 error ("flintmax: not defined for class '%s'", cname.c_str ());
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
638
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
639 return retval;
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
640 }
16939
06897f865f0b Add flintmax() as an alias for function bitmax().
Rik <rik@octave.org>
parents: 15195
diff changeset
641
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
642 DEFUN (intmax, args, ,
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
643 "-*- texinfo -*-\n\
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
644 @deftypefn {Built-in Function} {} intmax (@var{type})\n\
5040
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
645 Return the largest integer that can be represented in an integer type.\n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
646 The variable @var{type} can be\n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
647 \n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
648 @table @code\n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
649 @item int8\n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
650 signed 8-bit integer.\n\
10840
89f4d7e294cc Grammarcheck .cc files
Rik <octave@nomad.inbox5.com>
parents: 10830
diff changeset
651 \n\
5040
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
652 @item int16\n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
653 signed 16-bit integer.\n\
10840
89f4d7e294cc Grammarcheck .cc files
Rik <octave@nomad.inbox5.com>
parents: 10830
diff changeset
654 \n\
5040
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
655 @item int32\n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
656 signed 32-bit integer.\n\
10840
89f4d7e294cc Grammarcheck .cc files
Rik <octave@nomad.inbox5.com>
parents: 10830
diff changeset
657 \n\
5040
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
658 @item int64\n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
659 signed 64-bit integer.\n\
10840
89f4d7e294cc Grammarcheck .cc files
Rik <octave@nomad.inbox5.com>
parents: 10830
diff changeset
660 \n\
5040
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
661 @item uint8\n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
662 unsigned 8-bit integer.\n\
10840
89f4d7e294cc Grammarcheck .cc files
Rik <octave@nomad.inbox5.com>
parents: 10830
diff changeset
663 \n\
5040
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
664 @item uint16\n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
665 unsigned 16-bit integer.\n\
10840
89f4d7e294cc Grammarcheck .cc files
Rik <octave@nomad.inbox5.com>
parents: 10830
diff changeset
666 \n\
5040
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
667 @item uint32\n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
668 unsigned 32-bit integer.\n\
10840
89f4d7e294cc Grammarcheck .cc files
Rik <octave@nomad.inbox5.com>
parents: 10830
diff changeset
669 \n\
5040
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
670 @item uint64\n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
671 unsigned 64-bit integer.\n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
672 @end table\n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
673 \n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
674 The default for @var{type} is @code{uint32}.\n\
17390
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
675 @seealso{intmin, flintmax, bitmax}\n\
4908
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
676 @end deftypefn")
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
677 {
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
678 octave_value retval;
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
679 std::string cname = "int32";
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
680 int nargin = args.length ();
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
681
4919
a1073eef650c [project @ 2004-07-27 15:22:50 by jwe]
jwe
parents: 4915
diff changeset
682 if (nargin == 1 && args(0).is_string ())
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
683 cname = args(0).string_value ();
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
684 else if (nargin != 0)
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
685 {
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
686 print_usage ();
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
687 return retval;
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
688 }
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
689
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
690 if (cname == "uint8")
5828
22e23bee74c8 [project @ 2006-05-23 06:05:14 by jwe]
jwe
parents: 5823
diff changeset
691 retval = octave_uint8 (std::numeric_limits<uint8_t>::max ());
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
692 else if (cname == "uint16")
5828
22e23bee74c8 [project @ 2006-05-23 06:05:14 by jwe]
jwe
parents: 5823
diff changeset
693 retval = octave_uint16 (std::numeric_limits<uint16_t>::max ());
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
694 else if (cname == "uint32")
5828
22e23bee74c8 [project @ 2006-05-23 06:05:14 by jwe]
jwe
parents: 5823
diff changeset
695 retval = octave_uint32 (std::numeric_limits<uint32_t>::max ());
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
696 else if (cname == "uint64")
5828
22e23bee74c8 [project @ 2006-05-23 06:05:14 by jwe]
jwe
parents: 5823
diff changeset
697 retval = octave_uint64 (std::numeric_limits<uint64_t>::max ());
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
698 else if (cname == "int8")
5828
22e23bee74c8 [project @ 2006-05-23 06:05:14 by jwe]
jwe
parents: 5823
diff changeset
699 retval = octave_int8 (std::numeric_limits<int8_t>::max ());
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
700 else if (cname == "int16")
5828
22e23bee74c8 [project @ 2006-05-23 06:05:14 by jwe]
jwe
parents: 5823
diff changeset
701 retval = octave_int16 (std::numeric_limits<int16_t>::max ());
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
702 else if (cname == "int32")
5828
22e23bee74c8 [project @ 2006-05-23 06:05:14 by jwe]
jwe
parents: 5823
diff changeset
703 retval = octave_int32 (std::numeric_limits<int32_t>::max ());
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
704 else if (cname == "int64")
5828
22e23bee74c8 [project @ 2006-05-23 06:05:14 by jwe]
jwe
parents: 5823
diff changeset
705 retval = octave_int64 (std::numeric_limits<int64_t>::max ());
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
706 else
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
707 error ("intmax: not defined for '%s' objects", cname.c_str ());
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
708
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
709 return retval;
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
710 }
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
711
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
712 DEFUN (intmin, args, ,
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
713 "-*- texinfo -*-\n\
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
714 @deftypefn {Built-in Function} {} intmin (@var{type})\n\
5040
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
715 Return the smallest integer that can be represented in an integer type.\n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
716 The variable @var{type} can be\n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
717 \n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
718 @table @code\n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
719 @item int8\n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
720 signed 8-bit integer.\n\
10840
89f4d7e294cc Grammarcheck .cc files
Rik <octave@nomad.inbox5.com>
parents: 10830
diff changeset
721 \n\
5040
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
722 @item int16\n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
723 signed 16-bit integer.\n\
10840
89f4d7e294cc Grammarcheck .cc files
Rik <octave@nomad.inbox5.com>
parents: 10830
diff changeset
724 \n\
5040
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
725 @item int32\n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
726 signed 32-bit integer.\n\
10840
89f4d7e294cc Grammarcheck .cc files
Rik <octave@nomad.inbox5.com>
parents: 10830
diff changeset
727 \n\
5040
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
728 @item int64\n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
729 signed 64-bit integer.\n\
10840
89f4d7e294cc Grammarcheck .cc files
Rik <octave@nomad.inbox5.com>
parents: 10830
diff changeset
730 \n\
5040
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
731 @item uint8\n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
732 unsigned 8-bit integer.\n\
10840
89f4d7e294cc Grammarcheck .cc files
Rik <octave@nomad.inbox5.com>
parents: 10830
diff changeset
733 \n\
5040
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
734 @item uint16\n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
735 unsigned 16-bit integer.\n\
10840
89f4d7e294cc Grammarcheck .cc files
Rik <octave@nomad.inbox5.com>
parents: 10830
diff changeset
736 \n\
5040
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
737 @item uint32\n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
738 unsigned 32-bit integer.\n\
10840
89f4d7e294cc Grammarcheck .cc files
Rik <octave@nomad.inbox5.com>
parents: 10830
diff changeset
739 \n\
5040
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
740 @item uint64\n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
741 unsigned 64-bit integer.\n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
742 @end table\n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
743 \n\
b6ff3a0d3d17 [project @ 2004-09-27 13:50:01 by jwe]
jwe
parents: 4952
diff changeset
744 The default for @var{type} is @code{uint32}.\n\
17390
4bcd301754ce Add Matlab-compatible flintmax function
Mike Miller <mtmiller@ieee.org>
parents: 17389
diff changeset
745 @seealso{intmax, flintmax, bitmax}\n\
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
746 @end deftypefn")
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
747 {
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
748 octave_value retval;
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
749 std::string cname = "int32";
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
750 int nargin = args.length ();
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
751
4919
a1073eef650c [project @ 2004-07-27 15:22:50 by jwe]
jwe
parents: 4915
diff changeset
752 if (nargin == 1 && args(0).is_string ())
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
753 cname = args(0).string_value ();
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
754 else if (nargin != 0)
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
755 {
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
756 print_usage ();
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
757 return retval;
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
758 }
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
759
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
760 if (cname == "uint8")
5828
22e23bee74c8 [project @ 2006-05-23 06:05:14 by jwe]
jwe
parents: 5823
diff changeset
761 retval = octave_uint8 (std::numeric_limits<uint8_t>::min ());
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
762 else if (cname == "uint16")
14846
460a3c6d8bf1 maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Rik <octave@nomad.inbox5.com>
parents: 14725
diff changeset
763 retval = octave_uint16 (std::numeric_limits<uint16_t>::min ());
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
764 else if (cname == "uint32")
5828
22e23bee74c8 [project @ 2006-05-23 06:05:14 by jwe]
jwe
parents: 5823
diff changeset
765 retval = octave_uint32 (std::numeric_limits<uint32_t>::min ());
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
766 else if (cname == "uint64")
5828
22e23bee74c8 [project @ 2006-05-23 06:05:14 by jwe]
jwe
parents: 5823
diff changeset
767 retval = octave_uint64 (std::numeric_limits<uint64_t>::min ());
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
768 else if (cname == "int8")
5828
22e23bee74c8 [project @ 2006-05-23 06:05:14 by jwe]
jwe
parents: 5823
diff changeset
769 retval = octave_int8 (std::numeric_limits<int8_t>::min ());
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
770 else if (cname == "int16")
5828
22e23bee74c8 [project @ 2006-05-23 06:05:14 by jwe]
jwe
parents: 5823
diff changeset
771 retval = octave_int16 (std::numeric_limits<int16_t>::min ());
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
772 else if (cname == "int32")
5828
22e23bee74c8 [project @ 2006-05-23 06:05:14 by jwe]
jwe
parents: 5823
diff changeset
773 retval = octave_int32 (std::numeric_limits<int32_t>::min ());
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
774 else if (cname == "int64")
5828
22e23bee74c8 [project @ 2006-05-23 06:05:14 by jwe]
jwe
parents: 5823
diff changeset
775 retval = octave_int64 (std::numeric_limits<int64_t>::min ());
4915
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
776 else
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
777 error ("intmin: not defined for '%s' objects", cname.c_str ());
c638c144d4da [project @ 2004-07-23 19:01:22 by jwe]
jwe
parents: 4908
diff changeset
778
4908
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
779 return retval;
66af4b9f451e [project @ 2004-06-29 19:20:00 by jwe]
jwe
parents:
diff changeset
780 }
10811
e38c071bbc41 allow user query the maximum array size
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
781
e38c071bbc41 allow user query the maximum array size
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
782 DEFUN (sizemax, args, ,
e38c071bbc41 allow user query the maximum array size
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
783 "-*- texinfo -*-\n\
e38c071bbc41 allow user query the maximum array size
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
784 @deftypefn {Built-in Function} {} sizemax ()\n\
10895
4176c5c62138 Imrove documentation string for sizemax
Rik <octave@nomad.inbox5.com>
parents: 10840
diff changeset
785 Return the largest value allowed for the size of an array.\n\
10811
e38c071bbc41 allow user query the maximum array size
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
786 If Octave is compiled with 64-bit indexing, the result is of class int64,\n\
10895
4176c5c62138 Imrove documentation string for sizemax
Rik <octave@nomad.inbox5.com>
parents: 10840
diff changeset
787 otherwise it is of class int32. The maximum array size is slightly\n\
4176c5c62138 Imrove documentation string for sizemax
Rik <octave@nomad.inbox5.com>
parents: 10840
diff changeset
788 smaller than the maximum value allowable for the relevant class as reported\n\
4176c5c62138 Imrove documentation string for sizemax
Rik <octave@nomad.inbox5.com>
parents: 10840
diff changeset
789 by @code{intmax}.\n\
10811
e38c071bbc41 allow user query the maximum array size
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
790 @seealso{intmax}\n\
e38c071bbc41 allow user query the maximum array size
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
791 @end deftypefn")
e38c071bbc41 allow user query the maximum array size
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
792 {
e38c071bbc41 allow user query the maximum array size
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
793 octave_value retval;
e38c071bbc41 allow user query the maximum array size
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
794
e38c071bbc41 allow user query the maximum array size
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
795 if (args.length () == 0)
10830
b4ebfd675321 avoid static initialization disaster in dim_vector
Jaroslav Hajek <highegg@gmail.com>
parents: 10811
diff changeset
796 retval = octave_int<octave_idx_type> (dim_vector::dim_max ());
10811
e38c071bbc41 allow user query the maximum array size
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
797 else
e38c071bbc41 allow user query the maximum array size
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
798 print_usage ();
e38c071bbc41 allow user query the maximum array size
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
799
e38c071bbc41 allow user query the maximum array size
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
800 return retval;
e38c071bbc41 allow user query the maximum array size
Jaroslav Hajek <highegg@gmail.com>
parents: 10315
diff changeset
801 }