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annotate liboctave/util/lo-array-gripes.cc @ 20830:b65888ec820e draft default tip gccjit

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dmalcom gcc jit import
author Stefan Mahr <dac922@gmx.de>
date Fri, 27 Feb 2015 16:59:36 +0100
parents e54ecb33727e
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) 2003-2015 John W. Eaton
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4 Copyright (C) 2009 VZLU Prague
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5
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6 This file is part of Octave.
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7
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8 Octave is free software; you can redistribute it and/or modify it
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9 under the terms of the GNU General Public License as published by the
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10 Free Software Foundation; either version 3 of the License, or (at your
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11 option) any later version.
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12
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13 Octave is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with Octave; see the file COPYING. If not, see
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20 <http://www.gnu.org/licenses/>.
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21
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22 */
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23
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24 #ifdef HAVE_CONFIG_H
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25 #include <config.h>
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26 #endif
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27
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28 #include <string.h>
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29 #include "lo-array-gripes.h"
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30 #include "lo-error.h"
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31
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32 const char *error_id_nonconformant_args = "Octave:nonconformant-args";
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33
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34 const char *error_id_index_out_of_bounds = "Octave:index-out-of-bounds";
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35
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36 const char *error_id_invalid_index = "Octave:invalid-index";
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37
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38 const char *warning_id_nearly_singular_matrix = "Octave:nearly-singular-matrix";
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39
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40 const char *warning_id_singular_matrix = "Octave:singular-matrix";
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41
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42 void
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43 gripe_nan_to_logical_conversion (void)
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44 {
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45 (*current_liboctave_error_handler)
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46 ("invalid conversion from NaN to logical");
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47 }
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48
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49 void
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50 gripe_nan_to_character_conversion (void)
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51 {
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52 (*current_liboctave_error_handler)
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53 ("invalid conversion from NaN to character");
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54 }
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55
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56 void
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57 gripe_nonconformant (const char *op, octave_idx_type op1_len,
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58 octave_idx_type op2_len)
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59 {
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60 const char *err_id = error_id_nonconformant_args;
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61
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62 (*current_liboctave_error_with_id_handler)
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63 (err_id, "%s: nonconformant arguments (op1 len: %d, op2 len: %d)",
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64 op, op1_len, op2_len);
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65 }
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66
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67 void
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68 gripe_nonconformant (const char *op,
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69 octave_idx_type op1_nr, octave_idx_type op1_nc,
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70 octave_idx_type op2_nr, octave_idx_type op2_nc)
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71 {
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72 const char *err_id = error_id_nonconformant_args;
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73
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74 (*current_liboctave_error_with_id_handler)
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75 (err_id, "%s: nonconformant arguments (op1 is %dx%d, op2 is %dx%d)",
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76 op, op1_nr, op1_nc, op2_nr, op2_nc);
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77 }
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78
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79 void
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80 gripe_nonconformant (const char *op, const dim_vector& op1_dims,
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81 const dim_vector& op2_dims)
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82 {
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83 const char *err_id = error_id_nonconformant_args;
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84
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85 std::string op1_dims_str = op1_dims.str ();
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86 std::string op2_dims_str = op2_dims.str ();
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87
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88 (*current_liboctave_error_with_id_handler)
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89 (err_id, "%s: nonconformant arguments (op1 is %s, op2 is %s)",
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90 op, op1_dims_str.c_str (), op2_dims_str.c_str ());
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91 }
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92
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93 void
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94 gripe_del_index_out_of_range (bool is1d, octave_idx_type idx,
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95 octave_idx_type ext)
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96 {
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97 const char *err_id = error_id_index_out_of_bounds;
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98
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99 (*current_liboctave_error_with_id_handler)
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100 (err_id, "A(%s) = []: index out of bounds; value %d out of bound %d",
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101 is1d ? "I" : "..,I,..", idx, ext);
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102 }
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103
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104
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105
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106 // Common procedures of base class index_exception, thrown whenever an
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107 // object is indexed incorrectly, such as by an index that is out of
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108 // range, negative, fractional, complex, or of a non-numeric type.
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109
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110 const char *
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111 index_exception::err (void) throw ()
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112 {
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113 msg = access () + "; " + explain ();
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114 return msg.c_str ();
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115 }
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116
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117 // Show what was illegally accessed, e.g., "A(-1,_)", "A(0+1i)", "A(_,3)"
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118 // Show how many indices come before/after the offending one,
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119 // e.g., (<error>), (<error>,_), or (_,<error>,...[x5]...)
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120
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121 std::string
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122 index_exception:: access (void) const
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123 {
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124 // FIXME: don't use a fixed size buffer!
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125 const int buf_len = 300;
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126
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127 char output [buf_len];
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128 char pre [buf_len];
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129 char post [buf_len];
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130
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131 // dim == 0 if position not yet given, or
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132 // <static_cast unsigned int>(-1) if explicitly shown to be unknown
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133 // both are caught by this condition
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134
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135 if (static_cast <unsigned int> (dim-1) > 100000)
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136 {
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137 // No parentheses are given if the dimension is not known.
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138 pre[0] = post[0] = '\0';
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139 }
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140 else
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141 {
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142 if (dim < 5)
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143 {
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144 pre[0] = '(';
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145 octave_idx_type i;
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146
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147 for (i = 1; i < dim; i++)
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148 {
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149 pre[2*i-1] = '_';
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150 pre[2*i] = ',';
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151 }
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152
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153 pre[2*i-1] = '\0'; // i == min (1, dim)
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154 }
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155 else
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156 {
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157 sprintf (pre, "(...[x%d]...", dim-1);
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158 }
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159
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160 if (static_cast <unsigned int> (nd-dim) < 5)
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161 {
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162 for (octave_idx_type i = 0; i < nd-dim; i++)
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163 {
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164 post[2*i] = ',';
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165 post[2*i+1] = '_';
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166 }
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167
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168 if (nd >= dim)
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169 {
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170 post[2*(nd-dim)] = ')';
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171 post[2*(nd-dim)+1] = '\0';
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172 }
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173 }
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174 else
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175 sprintf (post, "...[x%d]...)", nd-dim);
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176 }
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177
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178 const char *v;
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179
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180 if (var[0] == '\0' || var == "<unknown>")
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181 v = "index ";
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182 else
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183 v = var.c_str ();
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184
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185 snprintf (output, buf_len, "%s%s%s%s", v, pre, idx(), post);
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186
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187 return output;
11135
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188 }
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189
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190 class invalid_index : public index_exception
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191 {
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192 public:
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193
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194 invalid_index (const char *value, octave_idx_type ndim,
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195 octave_idx_type dimen)
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196 : index_exception (value, ndim, dimen)
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197 { }
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198
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199 const char* explain (void) const
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200 {
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201 #ifdef USE_64_BIT_IDX_T
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202 return "subscripts must be either integers 1 to (2^63)-1 or logicals";
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203 #else
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204 return "subscripts must be either integers 1 to (2^31)-1 or logicals";
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205 #endif
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206 }
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207
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208 // ID of error to throw
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209 const char* id (void) const
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210 {
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211 return error_id_invalid_index;
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212 }
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213 };
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214
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215 // Complain of an index that is: negative, fractional, or too big.
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216
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217 void
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218 gripe_invalid_index (const char *idx, octave_idx_type nd,
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219 octave_idx_type dim, const char * /* var */)
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220 {
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221 invalid_index e (idx, nd, dim);
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222
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223 throw e;
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224 }
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225
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226 void
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227 gripe_invalid_index (octave_idx_type n, octave_idx_type nd,
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228 octave_idx_type dim, const char *var)
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229 {
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230 // Note: log10 (2^63) = 19 digits. Use 64 for ease of memory alignment.
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231 char buf[64];
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232
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233 sprintf (buf, "%d", n+1);
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234
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235 gripe_invalid_index (buf, nd, dim, var);
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236 }
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237
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238 void
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239 gripe_invalid_index (double n, octave_idx_type nd, octave_idx_type dim,
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240 const char *var)
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241 {
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242 char buf[64];
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243
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244 sprintf (buf, "%g", n+1);
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245
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246 gripe_invalid_index (buf, nd, dim, var);
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247 }
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248
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249
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250 // Gripe and exception for read access beyond the bounds of an array.
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251
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252 class out_of_range : public index_exception
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253 {
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254 public:
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255
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256 out_of_range (const char *value, octave_idx_type nd_in,octave_idx_type dim_in)
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257 : index_exception (value, nd_in, dim_in), extent(0)
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258 { }
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259
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260 const char* explain (void) const
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261 {
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262 static std::string expl; // should probably be member variable, but
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263 // then explain() can't be const.
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264
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265 if (nd >= size.length ()) // if not an index slice
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266 {
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267 if (var != "")
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268 expl = "but " + var + " has size ";
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269 else
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270 expl = "but object has size ";
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271
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272 expl = expl + size.str ('x');
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273 }
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274 else
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275 {
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276 char buf[64];
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277 sprintf (buf, "%d", extent);
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278 expl = "out of bound " + std::string (buf);
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279 }
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280
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281 return expl.c_str ();
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282 }
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283
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284 // ID of error to throw.
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285 const char* id (void) const
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286 {
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287 return (error_id_index_out_of_bounds);
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288 }
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289
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290 void set_size (const dim_vector& size_in) { size = size_in; }
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291
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292 void set_extent (octave_idx_type ext) { extent = ext; }
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293
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294 private:
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295
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296 dim_vector size; // dimension of object being accessed
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297
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298 octave_idx_type extent; // length of dimension being accessed
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299 };
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300
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301 // Complain of an index that is out of range, but we don't know matrix size
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302 void
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303 gripe_index_out_of_range (int nd, int dim, octave_idx_type idx,
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304 octave_idx_type ext)
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305 {
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306 char buf[64];
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307 sprintf (buf, "%d", idx);
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308 out_of_range e (buf, nd, dim);
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309
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310 e.set_extent (ext);
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311 dim_vector d (1,1,1,1,1,1,1); // make explain() give extent not size
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312 e.set_size (d);
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313 throw e;
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314 }
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315
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316 // Complain of an index that is out of range
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317 void
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318 gripe_index_out_of_range (int nd, int dim, octave_idx_type idx,
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319 octave_idx_type ext, const dim_vector& d)
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320 {
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321 char buf[64];
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322 sprintf (buf, "%d", idx);
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323 out_of_range e (buf, nd, dim);
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324
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325 e.set_extent (ext);
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326 e.set_size (d);
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327 throw e;
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328 }
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329
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330 void
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331 gripe_invalid_resize (void)
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332 {
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333 (*current_liboctave_error_with_id_handler)
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334 ("Octave:invalid-resize",
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335 "Invalid resizing operation or ambiguous assignment to an out-of-bounds array element");
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336 }
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337
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338 void
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339 gripe_singular_matrix (double rcond)
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340 {
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341 if (rcond == 0.0)
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342 {
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343 (*current_liboctave_warning_with_id_handler)
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344 (warning_id_singular_matrix,
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345 "matrix singular to machine precision");
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346 }
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347 else
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348 {
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349 (*current_liboctave_warning_with_id_handler)
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350 (warning_id_nearly_singular_matrix,
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351 "matrix singular to machine precision, rcond = %g", rcond);
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352 }
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353 }
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354
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355 /* Tests in test/index.tst */