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annotate libcpp/errors.c @ 120:f93fa5091070

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fix conv1.c
author mir3636
date Thu, 08 Mar 2018 14:53:42 +0900
parents 04ced10e8804
children 84e7813d76e9
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 /* Default error handlers for CPP Library.
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2 Copyright (C) 1986-2017 Free Software Foundation, Inc.
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3 Written by Per Bothner, 1994.
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4 Based on CCCP program by Paul Rubin, June 1986
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5 Adapted to ANSI C, Richard Stallman, Jan 1987
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6
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7 This program 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, or (at your option) any
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10 later version.
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11
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12 This program is distributed in the hope that it will be useful,
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13 but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License 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 this program; see the file COPYING3. If not see
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19 <http://www.gnu.org/licenses/>.
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20
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21 In other words, you are welcome to use, share and improve this program.
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22 You are forbidden to forbid anyone else to use, share and improve
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23 what you give them. Help stamp out software-hoarding! */
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24
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25 #include "config.h"
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26 #include "system.h"
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27 #include "cpplib.h"
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28 #include "internal.h"
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29
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30 /* Print a diagnostic at the given location. */
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31
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32 ATTRIBUTE_FPTR_PRINTF(5,0)
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33 static bool
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34 cpp_diagnostic_at_richloc (cpp_reader * pfile, int level, int reason,
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35 rich_location *richloc,
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36 const char *msgid, va_list *ap)
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37 {
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38 bool ret;
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39
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40 if (!pfile->cb.error)
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41 abort ();
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42 ret = pfile->cb.error (pfile, level, reason, richloc, _(msgid), ap);
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43
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44 return ret;
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45 }
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46
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47 /* Print a diagnostic at the given location. */
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48
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49 ATTRIBUTE_FPTR_PRINTF(5,0)
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50 static bool
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51 cpp_diagnostic_at (cpp_reader * pfile, int level, int reason,
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52 source_location src_loc,
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53 const char *msgid, va_list *ap)
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54 {
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55 bool ret;
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56
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57 if (!pfile->cb.error)
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58 abort ();
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59 rich_location richloc (pfile->line_table, src_loc);
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60 ret = pfile->cb.error (pfile, level, reason, &richloc, _(msgid), ap);
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61
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62 return ret;
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63 }
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64
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65 /* Print a diagnostic at the location of the previously lexed token. */
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66
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67 ATTRIBUTE_FPTR_PRINTF(4,0)
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68 static bool
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69 cpp_diagnostic (cpp_reader * pfile, int level, int reason,
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70 const char *msgid, va_list *ap)
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71 {
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72 source_location src_loc;
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73
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74 if (CPP_OPTION (pfile, traditional))
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75 {
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76 if (pfile->state.in_directive)
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77 src_loc = pfile->directive_line;
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78 else
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79 src_loc = pfile->line_table->highest_line;
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80 }
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81 /* We don't want to refer to a token before the beginning of the
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82 current run -- that is invalid. */
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83 else if (pfile->cur_token == pfile->cur_run->base)
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84 {
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85 src_loc = 0;
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86 }
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87 else
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88 {
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89 src_loc = pfile->cur_token[-1].src_loc;
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90 }
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91 return cpp_diagnostic_at (pfile, level, reason, src_loc, msgid, ap);
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92 }
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93
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94 /* Print a warning or error, depending on the value of LEVEL. */
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95
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96 bool
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97 cpp_error (cpp_reader * pfile, int level, const char *msgid, ...)
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98 {
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99 va_list ap;
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100 bool ret;
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101
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102 va_start (ap, msgid);
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103
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104 ret = cpp_diagnostic (pfile, level, CPP_W_NONE, msgid, &ap);
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105
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106 va_end (ap);
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107 return ret;
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108 }
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109
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110 /* Print a warning. The warning reason may be given in REASON. */
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111
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112 bool
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113 cpp_warning (cpp_reader * pfile, int reason, const char *msgid, ...)
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114 {
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115 va_list ap;
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116 bool ret;
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117
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118 va_start (ap, msgid);
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119
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120 ret = cpp_diagnostic (pfile, CPP_DL_WARNING, reason, msgid, &ap);
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121
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122 va_end (ap);
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123 return ret;
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124 }
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125
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126 /* Print a pedantic warning. The warning reason may be given in REASON. */
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127
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128 bool
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129 cpp_pedwarning (cpp_reader * pfile, int reason, const char *msgid, ...)
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130 {
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131 va_list ap;
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132 bool ret;
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133
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134 va_start (ap, msgid);
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135
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136 ret = cpp_diagnostic (pfile, CPP_DL_PEDWARN, reason, msgid, &ap);
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137
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138 va_end (ap);
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139 return ret;
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140 }
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141
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142 /* Print a warning, including system headers. The warning reason may be
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143 given in REASON. */
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144
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145 bool
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146 cpp_warning_syshdr (cpp_reader * pfile, int reason, const char *msgid, ...)
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147 {
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148 va_list ap;
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149 bool ret;
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150
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151 va_start (ap, msgid);
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152
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153 ret = cpp_diagnostic (pfile, CPP_DL_WARNING_SYSHDR, reason, msgid, &ap);
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154
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155 va_end (ap);
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156 return ret;
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157 }
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diff changeset
158
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159 /* Print a diagnostic at a specific location. */
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160
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161 ATTRIBUTE_FPTR_PRINTF(6,0)
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162 static bool
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163 cpp_diagnostic_with_line (cpp_reader * pfile, int level, int reason,
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164 source_location src_loc, unsigned int column,
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165 const char *msgid, va_list *ap)
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166 {
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167 bool ret;
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168
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169 if (!pfile->cb.error)
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170 abort ();
111
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171 rich_location richloc (pfile->line_table, src_loc);
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172 if (column)
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173 richloc.override_column (column);
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174 ret = pfile->cb.error (pfile, level, reason, &richloc, _(msgid), ap);
63
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175
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176 return ret;
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177 }
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178
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179 /* Print a warning or error, depending on the value of LEVEL. */
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180
55
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181 bool
0
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182 cpp_error_with_line (cpp_reader *pfile, int level,
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183 source_location src_loc, unsigned int column,
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184 const char *msgid, ...)
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185 {
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186 va_list ap;
55
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187 bool ret;
63
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188
0
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189 va_start (ap, msgid);
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190
63
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191 ret = cpp_diagnostic_with_line (pfile, level, CPP_W_NONE, src_loc,
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192 column, msgid, &ap);
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193
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194 va_end (ap);
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195 return ret;
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196 }
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197
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198 /* Print a warning. The warning reason may be given in REASON. */
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199
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200 bool
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201 cpp_warning_with_line (cpp_reader *pfile, int reason,
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202 source_location src_loc, unsigned int column,
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diff changeset
203 const char *msgid, ...)
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204 {
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diff changeset
205 va_list ap;
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206 bool ret;
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diff changeset
207
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diff changeset
208 va_start (ap, msgid);
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209
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210 ret = cpp_diagnostic_with_line (pfile, CPP_DL_WARNING, reason, src_loc,
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diff changeset
211 column, msgid, &ap);
0
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212
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213 va_end (ap);
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214 return ret;
0
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215 }
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216
63
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217 /* Print a pedantic warning. The warning reason may be given in REASON. */
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218
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219 bool
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220 cpp_pedwarning_with_line (cpp_reader *pfile, int reason,
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221 source_location src_loc, unsigned int column,
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diff changeset
222 const char *msgid, ...)
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223 {
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diff changeset
224 va_list ap;
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diff changeset
225 bool ret;
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diff changeset
226
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diff changeset
227 va_start (ap, msgid);
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228
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229 ret = cpp_diagnostic_with_line (pfile, CPP_DL_PEDWARN, reason, src_loc,
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230 column, msgid, &ap);
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231
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diff changeset
232 va_end (ap);
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diff changeset
233 return ret;
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234 }
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diff changeset
235
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236 /* Print a warning, including system headers. The warning reason may be
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237 given in REASON. */
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238
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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diff changeset
239 bool
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diff changeset
240 cpp_warning_with_line_syshdr (cpp_reader *pfile, int reason,
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diff changeset
241 source_location src_loc, unsigned int column,
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diff changeset
242 const char *msgid, ...)
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diff changeset
243 {
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diff changeset
244 va_list ap;
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diff changeset
245 bool ret;
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diff changeset
246
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diff changeset
247 va_start (ap, msgid);
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diff changeset
248
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249 ret = cpp_diagnostic_with_line (pfile, CPP_DL_WARNING_SYSHDR, reason, src_loc,
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diff changeset
250 column, msgid, &ap);
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251
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diff changeset
252 va_end (ap);
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253 return ret;
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254 }
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diff changeset
255
111
kono
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diff changeset
256 /* As cpp_error, but use SRC_LOC as the location of the error, without
kono
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diff changeset
257 a column override. */
kono
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258
kono
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259 bool
kono
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260 cpp_error_at (cpp_reader * pfile, int level, source_location src_loc,
kono
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diff changeset
261 const char *msgid, ...)
kono
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262 {
kono
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263 va_list ap;
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264 bool ret;
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265
kono
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266 va_start (ap, msgid);
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267
kono
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268 ret = cpp_diagnostic_at (pfile, level, CPP_W_NONE, src_loc,
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269 msgid, &ap);
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270
kono
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271 va_end (ap);
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272 return ret;
kono
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273 }
kono
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274
kono
parents: 67
diff changeset
275 /* As cpp_error, but use RICHLOC as the location of the error, without
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276 a column override. */
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277
kono
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278 bool
kono
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279 cpp_error_at_richloc (cpp_reader * pfile, int level, rich_location *richloc,
kono
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280 const char *msgid, ...)
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281 {
kono
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282 va_list ap;
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283 bool ret;
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284
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285 va_start (ap, msgid);
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286
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287 ret = cpp_diagnostic_at_richloc (pfile, level, CPP_W_NONE, richloc,
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288 msgid, &ap);
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289
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290 va_end (ap);
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291 return ret;
kono
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292 }
kono
parents: 67
diff changeset
293
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294 /* Print a warning or error, depending on the value of LEVEL. Include
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295 information from errno. */
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diff changeset
296
55
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297 bool
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298 cpp_errno (cpp_reader *pfile, int level, const char *msgid)
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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299 {
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300 return cpp_error (pfile, level, "%s: %s", _(msgid), xstrerror (errno));
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301 }
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302
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diff changeset
303 /* Print a warning or error, depending on the value of LEVEL. Include
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304 information from errno. Unlike cpp_errno, the argument is a filename
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305 that is not localized, but "" is replaced with localized "stdout". */
0
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306
111
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307 bool
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308 cpp_errno_filename (cpp_reader *pfile, int level, const char *filename,
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309 source_location loc)
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310 {
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311 if (filename[0] == '\0')
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312 filename = _("stdout");
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313
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314 return cpp_error_at (pfile, level, loc, "%s: %s", filename,
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315 xstrerror (errno));
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316 }