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annotate liboctave/util/lo-utils.h @ 20595:c1a6c31ac29a

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eliminate more simple uses of error_state * ov-classdef.cc: Eliminate simple uses of error_state.
author John W. Eaton <jwe@octave.org>
date Tue, 06 Oct 2015 00:20:02 -0400
parents 4197fc428c7d
children
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1 /*
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2
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4197fc428c7d maint: Update copyright notices for 2015.
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3 Copyright (C) 1996-2015 John W. Eaton
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4
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5 This file is part of Octave.
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6
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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
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21 */
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22
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23 #if !defined (octave_lo_utils_h)
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24 #define octave_lo_utils_h 1
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26 #include <cstdio>
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27
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28 #include <iostream>
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29 #include <string>
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30
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31 #include "quit.h"
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32
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33 #include "lo-cutils.h"
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34 #include "oct-cmplx.h"
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35
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36 // Generic any/all test functionality with arbitrary predicate.
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37
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38 template <class F, class T, bool zero>
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39 bool
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40 any_all_test (F fcn, const T *m, octave_idx_type len)
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41 {
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42 octave_idx_type i;
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43
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44 for (i = 0; i < len - 3; i += 4)
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45 {
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46 octave_quit ();
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47
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48 if (fcn (m[i]) != zero
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49 || fcn (m[i+1]) != zero
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50 || fcn (m[i+2]) != zero
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51 || fcn (m[i+3]) != zero)
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52 return ! zero;
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53 }
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54
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55 octave_quit ();
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56
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57 for (; i < len; i++)
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58 if (fcn (m[i]) != zero)
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59 return ! zero;
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60
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61 return zero;
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62 }
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63
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64 extern OCTAVE_API bool xis_int_or_inf_or_nan (double x);
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65 extern OCTAVE_API bool xis_one_or_zero (double x);
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66 extern OCTAVE_API bool xis_zero (double x);
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67 extern OCTAVE_API bool xtoo_large_for_float (double x);
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68
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69 extern OCTAVE_API bool xtoo_large_for_float (const Complex& x);
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71 extern OCTAVE_API bool xis_int_or_inf_or_nan (float x);
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72 extern OCTAVE_API bool xis_one_or_zero (float x);
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73 extern OCTAVE_API bool xis_zero (float x);
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74 extern OCTAVE_API bool xtoo_large_for_float (float x);
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75
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76 extern OCTAVE_API char *strsave (const char *);
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78 extern OCTAVE_API void
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79 octave_putenv (const std::string&, const std::string&);
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81 extern OCTAVE_API std::string octave_fgets (std::FILE *);
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82 extern OCTAVE_API std::string octave_fgetl (std::FILE *);
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83
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84 extern OCTAVE_API std::string octave_fgets (std::FILE *, bool& eof);
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85 extern OCTAVE_API std::string octave_fgetl (std::FILE *, bool& eof);
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86
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87 template <typename T>
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88 T
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89 octave_read_value (std::istream& is)
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90 {
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91 T retval;
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92 is >> retval;
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93 return retval;
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94 }
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95
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96 template <> OCTAVE_API double octave_read_value (std::istream& is);
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97 template <> OCTAVE_API Complex octave_read_value (std::istream& is);
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98 template <> OCTAVE_API float octave_read_value (std::istream& is);
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99 template <> OCTAVE_API FloatComplex octave_read_value (std::istream& is);
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100
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101 // The next four functions are provided for backward compatibility.
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102 inline double
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103 octave_read_double (std::istream& is)
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104 {
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105 return octave_read_value<double> (is);
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106 }
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107
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108 inline Complex
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109 octave_read_complex (std::istream& is)
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110 {
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111 return octave_read_value<Complex> (is);
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112 }
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113
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114 inline float
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115 octave_read_float (std::istream& is)
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116 {
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117 return octave_read_value<float> (is);
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118 }
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119
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120 inline FloatComplex
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121 octave_read_float_complex (std::istream& is)
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122 {
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123 return octave_read_value<FloatComplex> (is);
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124 }
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125
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126 extern OCTAVE_API void
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127 octave_write_double (std::ostream& os, double dval);
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128
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129 extern OCTAVE_API void
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130 octave_write_complex (std::ostream& os, const Complex& cval);
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131
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132 extern OCTAVE_API void
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133 octave_write_float (std::ostream& os, float dval);
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134
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135 extern OCTAVE_API void
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136 octave_write_float_complex (std::ostream& os, const FloatComplex& cval);
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137
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138 // Maybe this is overkill, but it allos
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139
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140 class
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141 octave_wait
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142 {
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143 public:
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144
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145 static bool ifexited (int status)
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146 {
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147 return octave_wifexited (status);
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148 }
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149
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150 static int exitstatus (int status)
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151 {
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152 return octave_wexitstatus (status);
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153 }
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154
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155 static bool ifsignaled (int status)
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156 {
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157 return octave_wifsignaled (status);
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158 }
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159
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160 static int termsig (int status)
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161 {
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162 return octave_wtermsig (status);
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163 }
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164
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165 static bool coredump (int status)
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166 {
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167 return octave_wcoredump (status);
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168 }
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169
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170 static bool ifstopped (int status)
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171 {
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172 return octave_wifstopped (status);
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173 }
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174
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175 static int stopsig (int status)
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176 {
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177 return octave_wstopsig (status);
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178 }
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179
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180 static bool ifcontinued (int status)
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181 {
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182 return octave_wifcontinued (status);
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183 }
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184 };
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185
1967
4cb6aaa0f2c7 [project @ 1996-02-17 02:54:24 by jwe]
jwe
parents:
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186 #endif