annotate liboctave/util/lo-utils.cc @ 31225:3eab70385569

sparse-xpow.cc: Use faster multiplication technique, this time for complex
author Arun Giridhar <arungiridhar@gmail.com>
date Sun, 11 Sep 2022 13:53:38 -0400
parents 796f54d4ddbf
children 6bd338605fd3 e88a07dec498
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 1996-2022 The Octave Project Developers
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4 //
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5 // See the file COPYRIGHT.md in the top-level directory of this
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6 // distribution or <https://octave.org/copyright/>.
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7 //
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8 // This file is part of Octave.
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9 //
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10 // Octave is free software: you can redistribute it and/or modify it
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11 // under the terms of the GNU General Public License as published by
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12 // the Free Software Foundation, either version 3 of the License, or
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13 // (at your option) any later version.
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14 //
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15 // Octave is distributed in the hope that it will be useful, but
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 // GNU General Public License for more details.
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19 //
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20 // You should have received a copy of the GNU General Public License
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21 // along with Octave; see the file COPYING. If not, see
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22 // <https://www.gnu.org/licenses/>.
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23 //
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24 ////////////////////////////////////////////////////////////////////////
1967
4cb6aaa0f2c7 [project @ 1996-02-17 02:54:24 by jwe]
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25
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26 #if defined (HAVE_CONFIG_H)
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27 # include "config.h"
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28 #endif
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29
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30 #include <cstdlib>
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31 #include <cstring>
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32
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33 #include <complex>
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34 #include <istream>
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35 #include <limits>
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36 #include <ostream>
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37 #include <string>
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38
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39 #include "quit.h"
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40
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41 #include "intprops-wrappers.h"
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42 #include "lo-error.h"
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43 #include "lo-ieee.h"
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44 #include "lo-mappers.h"
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45 #include "lo-utils.h"
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46 #include "oct-inttypes.h"
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47
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48 namespace octave
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49 {
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50 bool is_int_or_inf_or_nan (double x)
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51 {
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52 return math::isnan (x) || math::x_nint (x) == x;
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53 }
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54
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55 bool too_large_for_float (double x)
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56 {
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57 return (math::isfinite (x)
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58 && fabs (x) > std::numeric_limits<float>::max ());
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59 }
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60
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61 bool too_large_for_float (const Complex& x)
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62 {
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63 return (too_large_for_float (x.real ())
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64 || too_large_for_float (x.imag ()));
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65 }
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66
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67 bool is_int_or_inf_or_nan (float x)
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68 {
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69 return math::isnan (x) || math::x_nint (x) == x;
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70 }
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71
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72 // Save a string.
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73
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74 char * strsave (const char *s)
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75 {
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76 if (! s)
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77 return nullptr;
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78
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79 int len = strlen (s);
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80 char *tmp = new char [len+1];
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81 tmp = strcpy (tmp, s);
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82 return tmp;
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83 }
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84
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85 std::string fgets (FILE *f)
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86 {
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87 bool eof;
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88 return fgets (f, eof);
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89 }
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90
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91 std::string fgets (FILE *f, bool& eof)
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92 {
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93 eof = false;
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94
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95 std::string retval;
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96
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97 int grow_size = 1024;
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98 int max_size = grow_size;
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99
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100 char *buf = static_cast<char *> (std::malloc (max_size));
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101 if (! buf)
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102 (*current_liboctave_error_handler) ("octave_fgets: unable to malloc %d bytes", max_size);
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103
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104 char *bufptr = buf;
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105 int len = 0;
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106
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107 do
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108 {
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109 if (std::fgets (bufptr, grow_size, f))
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110 {
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111 len = strlen (bufptr);
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112
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113 if (len == grow_size - 1)
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114 {
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115 int tmp = bufptr - buf + grow_size - 1;
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116 grow_size *= 2;
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117 max_size += grow_size;
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118 auto tmpbuf = static_cast<char *> (std::realloc (buf, max_size));
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119 if (! tmpbuf)
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120 {
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121 free (buf);
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122 (*current_liboctave_error_handler) ("octave_fgets: unable to realloc %d bytes", max_size);
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123 }
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124 buf = tmpbuf;
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125 bufptr = buf + tmp;
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126
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127 if (*(bufptr-1) == '\n')
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128 {
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129 *bufptr = '\0';
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130 retval = buf;
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131 }
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132 }
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133 else if (bufptr[len-1] != '\n')
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134 {
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135 bufptr[len++] = '\n';
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136 bufptr[len] = '\0';
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137 retval = buf;
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138 }
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139 else
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140 retval = buf;
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141 }
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142 else
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143 {
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144 if (len == 0)
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145 {
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146 eof = true;
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147
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148 free (buf);
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149
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150 buf = nullptr;
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151 }
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152
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153 break;
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154 }
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155 }
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156 while (retval.empty ());
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157
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158 free (buf);
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159
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160 octave_quit ();
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161
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162 return retval;
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163 }
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164
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165 std::string fgetl (FILE *f)
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166 {
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167 bool eof;
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168 return fgetl (f, eof);
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169 }
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170
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171 std::string fgetl (FILE *f, bool& eof)
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172 {
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173 std::string retval = fgets (f, eof);
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174
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175 if (! retval.empty () && retval.back () == '\n')
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176 retval.pop_back ();
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177
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178 return retval;
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179 }
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180
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181 template <typename T>
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182 T
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183 read_value (std::istream& is)
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184 {
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185 T retval;
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186 is >> retval;
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187 return retval;
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188 }
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189
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190 template OCTAVE_API bool read_value<bool> (std::istream& is);
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191 template OCTAVE_API octave_int8 read_value<octave_int8> (std::istream& is);
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192 template OCTAVE_API octave_int16 read_value<octave_int16> (std::istream& is);
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193 template OCTAVE_API octave_int32 read_value<octave_int32> (std::istream& is);
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194 template OCTAVE_API octave_int64 read_value<octave_int64> (std::istream& is);
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195 template OCTAVE_API octave_uint8 read_value<octave_uint8> (std::istream& is);
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196 template OCTAVE_API octave_uint16 read_value<octave_uint16> (std::istream& is);
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197 template OCTAVE_API octave_uint32 read_value<octave_uint32> (std::istream& is);
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198 template OCTAVE_API octave_uint64 read_value<octave_uint64> (std::istream& is);
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199
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200 // Note that the caller is responsible for repositioning the stream on
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201 // failure.
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202
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203 template <typename T>
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204 T
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205 read_inf_nan_na (std::istream& is, char c0)
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206 {
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207 T val = 0.0;
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208
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209 switch (c0)
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210 {
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211 case 'i': case 'I':
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212 {
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213 char c1 = is.get ();
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214 if (c1 == 'n' || c1 == 'N')
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215 {
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216 char c2 = is.get ();
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217 if (c2 == 'f' || c2 == 'F')
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218 val = std::numeric_limits<T>::infinity ();
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219 else
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220 is.setstate (std::ios::failbit);
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221 }
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222 else
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223 is.setstate (std::ios::failbit);
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224 }
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225 break;
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226
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227 case 'n': case 'N':
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228 {
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229 char c1 = is.get ();
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230 if (c1 == 'a' || c1 == 'A')
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231 {
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232 char c2 = is.get ();
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233 if (c2 == 'n' || c2 == 'N')
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234 val = std::numeric_limits<T>::quiet_NaN ();
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235 else
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236 {
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237 val = numeric_limits<T>::NA ();
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238 if (c2 != std::istream::traits_type::eof ())
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239 is.putback (c2);
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240 else
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241 is.clear (is.rdstate () & ~std::ios::failbit);
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242 }
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243 }
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244 else
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245 is.setstate (std::ios::failbit);
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246 }
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247 break;
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248
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diff changeset
249 default:
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diff changeset
250 (*current_liboctave_error_handler)
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251 ("read_inf_nan_na: invalid character '%c'", c0);
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252 }
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253
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254 return val;
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255 }
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256
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257 // Read a double value. Discard any sign on NaN and NA.
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258
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diff changeset
259 template <typename T>
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diff changeset
260 double
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diff changeset
261 read_fp_value (std::istream& is)
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diff changeset
262 {
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diff changeset
263 T val = 0.0;
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diff changeset
264
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265 // FIXME: resetting stream position is likely to fail unless we are
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266 // reading from a file.
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267 std::streampos pos = is.tellg ();
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268
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269 char c1 = ' ';
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270
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271 while (isspace (c1))
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272 c1 = is.get ();
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273
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274 bool neg = false;
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275
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276 switch (c1)
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277 {
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278 case '-':
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279 neg = true;
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280 OCTAVE_FALLTHROUGH;
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281
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282 case '+':
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283 {
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diff changeset
284 char c2 = 0;
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
285 c2 = is.get ();
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
286 if (c2 == 'i' || c2 == 'I' || c2 == 'n' || c2 == 'N')
83172e1c77f2 refactor octave_read_* and octave_write_* functions
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parents: 27923
diff changeset
287 val = read_inf_nan_na<T> (is, c2);
83172e1c77f2 refactor octave_read_* and octave_write_* functions
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parents: 27923
diff changeset
288 else
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
289 {
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
290 is.putback (c2);
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
291 is >> val;
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
292 }
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
293
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
294 if (neg && ! is.fail ())
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
295 val = -val;
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
296 }
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
297 break;
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
298
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
299 case 'i': case 'I':
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
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diff changeset
300 case 'n': case 'N':
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
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diff changeset
301 val = read_inf_nan_na<T> (is, c1);
83172e1c77f2 refactor octave_read_* and octave_write_* functions
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diff changeset
302 break;
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
303
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
304 default:
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
305 is.putback (c1);
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
306 is >> val;
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
307 break;
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
308 }
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
309
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
310 std::ios::iostate status = is.rdstate ();
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
311 if (status & std::ios::failbit)
4130
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jwe
parents: 3970
diff changeset
312 {
28628
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diff changeset
313 // Convert MAX_VAL returned by C++ streams for very large numbers to Inf
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
314 if (val == std::numeric_limits<T>::max ())
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
315 {
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
316 if (neg)
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
317 val = -std::numeric_limits<T>::infinity ();
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
318 else
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
319 val = std::numeric_limits<T>::infinity ();
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
320 is.clear (status & ~std::ios::failbit);
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
321 }
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
322 else
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
323 {
28628
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
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diff changeset
324 // True error. Reset stream to original position and pass status on.
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
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diff changeset
325 is.clear ();
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
326 is.seekg (pos);
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
327 is.setstate (status);
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
328 }
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
329 }
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
330
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
331 return val;
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
332 }
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
333
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
334 template <typename T>
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
335 std::complex<T>
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
336 read_cx_fp_value (std::istream& is)
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
337 {
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
338 T re = 0.0;
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
339 T im = 0.0;
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
340
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
341 std::complex<T> cx = 0.0;
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
342
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
343 char ch = ' ';
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
344
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
345 while (isspace (ch))
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
346 ch = is.get ();
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
347
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
348 if (ch == '(')
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
349 {
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
350 re = read_value<T> (is);
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
351 ch = is.get ();
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
352
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
353 if (ch == ',')
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
354 {
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
355 im = read_value<T> (is);
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
356 ch = is.get ();
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
357
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
358 if (ch == ')')
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
359 cx = std::complex<T> (re, im);
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
360 else
14806
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
361 is.setstate (std::ios::failbit);
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
362 }
28628
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
363 else if (ch == ')')
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
364 cx = re;
10314
07ebe522dac2 untabify liboctave C++ sources
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
365 else
14806
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
366 is.setstate (std::ios::failbit);
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
367 }
28628
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
368 else
6194
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
369 {
28628
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
370 is.putback (ch);
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
371 cx = read_value<T> (is);
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
372 }
14806
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
373
28628
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
374 return cx;
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
375 }
14806
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
376
28628
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
377 // FIXME: Could we use traits and enable_if to avoid duplication in the
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
378 // following specializations?
6194
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
379
29230
6b3faa844395 Set API tags in files in liboctave/util (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28857
diff changeset
380 template <> OCTAVE_API double read_value (std::istream& is)
28628
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
381 {
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
382 return read_fp_value<double> (is);
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
383 }
14806
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
384
29230
6b3faa844395 Set API tags in files in liboctave/util (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28857
diff changeset
385 template <> OCTAVE_API Complex read_value (std::istream& is)
28628
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
386 {
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
387 return read_cx_fp_value<double> (is);
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
388 }
14806
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
389
29230
6b3faa844395 Set API tags in files in liboctave/util (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28857
diff changeset
390 template <> OCTAVE_API float read_value (std::istream& is)
28628
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
391 {
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
392 return read_fp_value<float> (is);
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
393 }
14806
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
394
29230
6b3faa844395 Set API tags in files in liboctave/util (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28857
diff changeset
395 template <> OCTAVE_API FloatComplex read_value (std::istream& is)
28628
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
396 {
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
397 return read_cx_fp_value<float> (is);
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
398 }
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
399
29230
6b3faa844395 Set API tags in files in liboctave/util (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28857
diff changeset
400 template <typename T>
6b3faa844395 Set API tags in files in liboctave/util (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28857
diff changeset
401 void
6b3faa844395 Set API tags in files in liboctave/util (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28857
diff changeset
402 write_value (std::ostream& os, const T& value)
6b3faa844395 Set API tags in files in liboctave/util (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28857
diff changeset
403 {
6b3faa844395 Set API tags in files in liboctave/util (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28857
diff changeset
404 os << value;
6b3faa844395 Set API tags in files in liboctave/util (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28857
diff changeset
405 }
6194
0d2ff0dfb159 [project @ 2006-12-01 05:25:38 by jwe]
jwe
parents: 5775
diff changeset
406
29244
d1473e75d7d6 lo-utils: Export template instantiations (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29230
diff changeset
407 template OCTAVE_API void
d1473e75d7d6 lo-utils: Export template instantiations (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29230
diff changeset
408 write_value<bool> (std::ostream& os, const bool& value);
d1473e75d7d6 lo-utils: Export template instantiations (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29230
diff changeset
409 template OCTAVE_API void
d1473e75d7d6 lo-utils: Export template instantiations (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29230
diff changeset
410 write_value<octave_int8> (std::ostream& os, const octave_int8& value);
d1473e75d7d6 lo-utils: Export template instantiations (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29230
diff changeset
411 template OCTAVE_API void
d1473e75d7d6 lo-utils: Export template instantiations (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29230
diff changeset
412 write_value<octave_int16> (std::ostream& os, const octave_int16& value);
d1473e75d7d6 lo-utils: Export template instantiations (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29230
diff changeset
413 template OCTAVE_API void
d1473e75d7d6 lo-utils: Export template instantiations (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29230
diff changeset
414 write_value<octave_int32> (std::ostream& os, const octave_int32& value);
d1473e75d7d6 lo-utils: Export template instantiations (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29230
diff changeset
415 template OCTAVE_API void
d1473e75d7d6 lo-utils: Export template instantiations (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29230
diff changeset
416 write_value<octave_int64> (std::ostream& os, const octave_int64& value);
d1473e75d7d6 lo-utils: Export template instantiations (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29230
diff changeset
417 template OCTAVE_API void
d1473e75d7d6 lo-utils: Export template instantiations (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29230
diff changeset
418 write_value<octave_uint8> (std::ostream& os, const octave_uint8& value);
d1473e75d7d6 lo-utils: Export template instantiations (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29230
diff changeset
419 template OCTAVE_API void
d1473e75d7d6 lo-utils: Export template instantiations (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29230
diff changeset
420 write_value<octave_uint16> (std::ostream& os, const octave_uint16& value);
d1473e75d7d6 lo-utils: Export template instantiations (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29230
diff changeset
421 template OCTAVE_API void
d1473e75d7d6 lo-utils: Export template instantiations (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29230
diff changeset
422 write_value<octave_uint32> (std::ostream& os, const octave_uint32& value);
d1473e75d7d6 lo-utils: Export template instantiations (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29230
diff changeset
423 template OCTAVE_API void
d1473e75d7d6 lo-utils: Export template instantiations (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29230
diff changeset
424 write_value<octave_uint64> (std::ostream& os, const octave_uint64& value);
4130
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jwe
parents: 3970
diff changeset
425
28628
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John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
426 // Note: precision is supposed to be managed outside of this function by
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
427 // setting stream parameters.
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
428
29244
d1473e75d7d6 lo-utils: Export template instantiations (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29230
diff changeset
429 template <> OCTAVE_API void
d1473e75d7d6 lo-utils: Export template instantiations (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29230
diff changeset
430 write_value (std::ostream& os, const double& value)
28628
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
431 {
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
432 if (lo_ieee_is_NA (value))
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
433 os << "NA";
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
434 else if (lo_ieee_isnan (value))
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
435 os << "NaN";
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
436 else if (lo_ieee_isinf (value))
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
437 os << (value < 0 ? "-Inf" : "Inf");
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
438 else
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
439 os << value;
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
440 }
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
441
29244
d1473e75d7d6 lo-utils: Export template instantiations (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29230
diff changeset
442 template <> OCTAVE_API void
d1473e75d7d6 lo-utils: Export template instantiations (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29230
diff changeset
443 write_value (std::ostream& os, const Complex& value)
28628
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
444 {
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
445 os << '(';
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
446 write_value<double> (os, real (value));
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
447 os << ',';
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
448 write_value<double> (os, imag (value));
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
449 os << ')';
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
450 }
14806
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
451
28628
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
452 // Note: precision is supposed to be managed outside of this function by
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
453 // setting stream parameters.
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
454
29244
d1473e75d7d6 lo-utils: Export template instantiations (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29230
diff changeset
455 template <> OCTAVE_API void
d1473e75d7d6 lo-utils: Export template instantiations (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29230
diff changeset
456 write_value (std::ostream& os, const float& value)
28628
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
457 {
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
458 if (lo_ieee_is_NA (value))
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
459 os << "NA";
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
460 else if (lo_ieee_isnan (value))
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
461 os << "NaN";
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
462 else if (lo_ieee_isinf (value))
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
463 os << (value < 0 ? "-Inf" : "Inf");
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
464 else
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
465 os << value;
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
466 }
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
467
29244
d1473e75d7d6 lo-utils: Export template instantiations (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29230
diff changeset
468 template <> OCTAVE_API void
d1473e75d7d6 lo-utils: Export template instantiations (patch #8919).
Markus Mützel <markus.muetzel@gmx.de>
parents: 29230
diff changeset
469 write_value (std::ostream& os, const FloatComplex& value)
28628
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
470 {
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
471 os << '(';
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
472 write_value<float> (os, real (value));
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
473 os << ',';
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
474 write_value<float> (os, imag (value));
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
475 os << ')';
83172e1c77f2 refactor octave_read_* and octave_write_* functions
John W. Eaton <jwe@octave.org>
parents: 27923
diff changeset
476 }
28849
8b0675c2cfe0 Add functions to check for integer overflow on multiplication (bug #59094).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28643
diff changeset
477
8b0675c2cfe0 Add functions to check for integer overflow on multiplication (bug #59094).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28643
diff changeset
478 namespace math
8b0675c2cfe0 Add functions to check for integer overflow on multiplication (bug #59094).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28643
diff changeset
479 {
29445
b5f3ae7610cf Use gnulib macros that account for the output type in integer overflow checks.
Markus Mützel <markus.muetzel@gmx.de>
parents: 29359
diff changeset
480 bool int_multiply_overflow (int a, int b, int *r)
14806
980e2d5c83f7 avoid calling putback more than once between reads
John W. Eaton <jwe@octave.org>
parents: 14138
diff changeset
481 {
29445
b5f3ae7610cf Use gnulib macros that account for the output type in integer overflow checks.
Markus Mützel <markus.muetzel@gmx.de>
parents: 29359
diff changeset
482 return octave_i_multiply_overflow_wrapper (a, b, r);
4130
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jwe
parents: 3970
diff changeset
483 }
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
484
29445
b5f3ae7610cf Use gnulib macros that account for the output type in integer overflow checks.
Markus Mützel <markus.muetzel@gmx.de>
parents: 29359
diff changeset
485 bool int_multiply_overflow (long int a, long int b, long int *r)
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
486 {
29445
b5f3ae7610cf Use gnulib macros that account for the output type in integer overflow checks.
Markus Mützel <markus.muetzel@gmx.de>
parents: 29359
diff changeset
487 return octave_li_multiply_overflow_wrapper (a, b, r);
4130
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
488 }
7d9bda865012 [project @ 2002-10-28 21:05:30 by jwe]
jwe
parents: 3970
diff changeset
489
28849
8b0675c2cfe0 Add functions to check for integer overflow on multiplication (bug #59094).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28643
diff changeset
490 #if defined (OCTAVE_HAVE_LONG_LONG_INT)
29445
b5f3ae7610cf Use gnulib macros that account for the output type in integer overflow checks.
Markus Mützel <markus.muetzel@gmx.de>
parents: 29359
diff changeset
491 bool int_multiply_overflow (long long int a, long long int b,
b5f3ae7610cf Use gnulib macros that account for the output type in integer overflow checks.
Markus Mützel <markus.muetzel@gmx.de>
parents: 29359
diff changeset
492 long long int *r)
28849
8b0675c2cfe0 Add functions to check for integer overflow on multiplication (bug #59094).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28643
diff changeset
493 {
29445
b5f3ae7610cf Use gnulib macros that account for the output type in integer overflow checks.
Markus Mützel <markus.muetzel@gmx.de>
parents: 29359
diff changeset
494 return octave_lli_multiply_overflow_wrapper (a, b, r);
28849
8b0675c2cfe0 Add functions to check for integer overflow on multiplication (bug #59094).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28643
diff changeset
495 }
8b0675c2cfe0 Add functions to check for integer overflow on multiplication (bug #59094).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28643
diff changeset
496 #endif
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
497
29445
b5f3ae7610cf Use gnulib macros that account for the output type in integer overflow checks.
Markus Mützel <markus.muetzel@gmx.de>
parents: 29359
diff changeset
498 bool int_multiply_overflow (unsigned int a, unsigned int b,
b5f3ae7610cf Use gnulib macros that account for the output type in integer overflow checks.
Markus Mützel <markus.muetzel@gmx.de>
parents: 29359
diff changeset
499 unsigned int *r)
28849
8b0675c2cfe0 Add functions to check for integer overflow on multiplication (bug #59094).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28643
diff changeset
500 {
29445
b5f3ae7610cf Use gnulib macros that account for the output type in integer overflow checks.
Markus Mützel <markus.muetzel@gmx.de>
parents: 29359
diff changeset
501 return octave_ui_multiply_overflow_wrapper (a, b, r);
28849
8b0675c2cfe0 Add functions to check for integer overflow on multiplication (bug #59094).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28643
diff changeset
502 }
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
503
29445
b5f3ae7610cf Use gnulib macros that account for the output type in integer overflow checks.
Markus Mützel <markus.muetzel@gmx.de>
parents: 29359
diff changeset
504 bool int_multiply_overflow (unsigned long int a, unsigned long int b,
30394
f3f3e3793fb5 maint: style check C++ files in liboctave/ ahead of 7.1 release.
Rik <rik@octave.org>
parents: 29937
diff changeset
505 unsigned long int *r)
28849
8b0675c2cfe0 Add functions to check for integer overflow on multiplication (bug #59094).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28643
diff changeset
506 {
29445
b5f3ae7610cf Use gnulib macros that account for the output type in integer overflow checks.
Markus Mützel <markus.muetzel@gmx.de>
parents: 29359
diff changeset
507 return octave_uli_multiply_overflow_wrapper (a, b, r);
28849
8b0675c2cfe0 Add functions to check for integer overflow on multiplication (bug #59094).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28643
diff changeset
508 }
9469
c6edba80dfae sanity checks for loading sparse matrices
John W. Eaton <jwe@octave.org>
parents: 8920
diff changeset
509
28849
8b0675c2cfe0 Add functions to check for integer overflow on multiplication (bug #59094).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28643
diff changeset
510 #if defined (OCTAVE_HAVE_UNSIGNED_LONG_LONG_INT)
8b0675c2cfe0 Add functions to check for integer overflow on multiplication (bug #59094).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28643
diff changeset
511 bool int_multiply_overflow (unsigned long long int a,
30394
f3f3e3793fb5 maint: style check C++ files in liboctave/ ahead of 7.1 release.
Rik <rik@octave.org>
parents: 29937
diff changeset
512 unsigned long long int b,
f3f3e3793fb5 maint: style check C++ files in liboctave/ ahead of 7.1 release.
Rik <rik@octave.org>
parents: 29937
diff changeset
513 unsigned long long int *r)
28849
8b0675c2cfe0 Add functions to check for integer overflow on multiplication (bug #59094).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28643
diff changeset
514 {
29445
b5f3ae7610cf Use gnulib macros that account for the output type in integer overflow checks.
Markus Mützel <markus.muetzel@gmx.de>
parents: 29359
diff changeset
515 return octave_ulli_multiply_overflow_wrapper (a, b, r);
28849
8b0675c2cfe0 Add functions to check for integer overflow on multiplication (bug #59094).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28643
diff changeset
516 }
8b0675c2cfe0 Add functions to check for integer overflow on multiplication (bug #59094).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28643
diff changeset
517 #endif
8b0675c2cfe0 Add functions to check for integer overflow on multiplication (bug #59094).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28643
diff changeset
518
8b0675c2cfe0 Add functions to check for integer overflow on multiplication (bug #59094).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28643
diff changeset
519 }
7789
82be108cc558 First attempt at single precision tyeps
David Bateman <dbateman@free.fr>
parents: 7048
diff changeset
520 }