Mercurial > hg > CbC > CbC_gcc

annotate libcpp/errors.c @ 145:1830386684a0

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gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
parents 84e7813d76e9
children
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1 /* Default error handlers for CPP Library.
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2 Copyright (C) 1986-2020 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 (cpp_reader * pfile, enum cpp_diagnostic_level level,
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35 enum cpp_warning_reason reason, 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.diagnostic)
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41 abort ();
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42 ret = pfile->cb.diagnostic (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 location of the previously lexed token. */
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48
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49 ATTRIBUTE_FPTR_PRINTF(4,0)
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50 static bool
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51 cpp_diagnostic (cpp_reader * pfile, enum cpp_diagnostic_level level,
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52 enum cpp_warning_reason reason,
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53 const char *msgid, va_list *ap)
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54 {
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55 location_t src_loc;
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56
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57 if (CPP_OPTION (pfile, traditional))
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58 {
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59 if (pfile->state.in_directive)
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60 src_loc = pfile->directive_line;
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61 else
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62 src_loc = pfile->line_table->highest_line;
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63 }
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64 /* We don't want to refer to a token before the beginning of the
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65 current run -- that is invalid. */
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66 else if (pfile->cur_token == pfile->cur_run->base)
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67 {
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68 src_loc = 0;
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69 }
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70 else
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71 {
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72 src_loc = pfile->cur_token[-1].src_loc;
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73 }
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74 rich_location richloc (pfile->line_table, src_loc);
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75 return cpp_diagnostic_at (pfile, level, reason, &richloc, msgid, ap);
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76 }
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77
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78 /* Print a warning or error, depending on the value of LEVEL. */
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79
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80 bool
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81 cpp_error (cpp_reader * pfile, enum cpp_diagnostic_level level,
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82 const char *msgid, ...)
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83 {
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84 va_list ap;
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85 bool ret;
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86
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87 va_start (ap, msgid);
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88
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89 ret = cpp_diagnostic (pfile, level, CPP_W_NONE, msgid, &ap);
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90
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91 va_end (ap);
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92 return ret;
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93 }
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94
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95 /* Print a warning. The warning reason may be given in REASON. */
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96
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97 bool
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98 cpp_warning (cpp_reader * pfile, enum cpp_warning_reason reason,
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99 const char *msgid, ...)
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100 {
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101 va_list ap;
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102 bool ret;
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103
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104 va_start (ap, msgid);
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105
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106 ret = cpp_diagnostic (pfile, CPP_DL_WARNING, reason, msgid, &ap);
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107
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108 va_end (ap);
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109 return ret;
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110 }
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111
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112 /* Print a pedantic warning. The warning reason may be given in REASON. */
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113
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114 bool
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115 cpp_pedwarning (cpp_reader * pfile, enum cpp_warning_reason reason,
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116 const char *msgid, ...)
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117 {
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118 va_list ap;
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119 bool ret;
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120
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121 va_start (ap, msgid);
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122
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123 ret = cpp_diagnostic (pfile, CPP_DL_PEDWARN, reason, msgid, &ap);
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124
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125 va_end (ap);
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126 return ret;
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127 }
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128
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129 /* Print a warning, including system headers. The warning reason may be
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130 given in REASON. */
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131
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132 bool
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133 cpp_warning_syshdr (cpp_reader * pfile, enum cpp_warning_reason reason,
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134 const char *msgid, ...)
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135 {
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136 va_list ap;
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137 bool ret;
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138
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139 va_start (ap, msgid);
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140
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141 ret = cpp_diagnostic (pfile, CPP_DL_WARNING_SYSHDR, reason, msgid, &ap);
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142
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143 va_end (ap);
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144 return ret;
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145 }
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diff changeset
146
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147 /* Print a diagnostic at a specific location. */
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148
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149 ATTRIBUTE_FPTR_PRINTF(6,0)
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150 static bool
131
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151 cpp_diagnostic_with_line (cpp_reader * pfile, enum cpp_diagnostic_level level,
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152 enum cpp_warning_reason reason,
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153 location_t src_loc, unsigned int column,
131
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154 const char *msgid, va_list *ap)
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155 {
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156 bool ret;
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157
131
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158 if (!pfile->cb.diagnostic)
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159 abort ();
111
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160 rich_location richloc (pfile->line_table, src_loc);
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161 if (column)
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162 richloc.override_column (column);
131
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163 ret = pfile->cb.diagnostic (pfile, level, reason, &richloc, _(msgid), ap);
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164
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165 return ret;
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166 }
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167
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168 /* Print a warning or error, depending on the value of LEVEL. */
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169
55
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170 bool
131
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171 cpp_error_with_line (cpp_reader *pfile, enum cpp_diagnostic_level level,
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172 location_t src_loc, unsigned int column,
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173 const char *msgid, ...)
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174 {
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175 va_list ap;
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176 bool ret;
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177
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178 va_start (ap, msgid);
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179
63
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180 ret = cpp_diagnostic_with_line (pfile, level, CPP_W_NONE, src_loc,
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181 column, msgid, &ap);
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182
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183 va_end (ap);
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184 return ret;
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185 }
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186
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187 /* Print a warning. The warning reason may be given in REASON. */
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188
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189 bool
131
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190 cpp_warning_with_line (cpp_reader *pfile, enum cpp_warning_reason reason,
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191 location_t src_loc, unsigned int column,
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192 const char *msgid, ...)
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193 {
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194 va_list ap;
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195 bool ret;
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196
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197 va_start (ap, msgid);
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198
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199 ret = cpp_diagnostic_with_line (pfile, CPP_DL_WARNING, reason, src_loc,
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200 column, msgid, &ap);
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201
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202 va_end (ap);
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203 return ret;
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204 }
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205
63
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206 /* Print a pedantic warning. The warning reason may be given in REASON. */
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diff changeset
207
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208 bool
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209 cpp_pedwarning_with_line (cpp_reader *pfile, enum cpp_warning_reason reason,
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210 location_t src_loc, unsigned int column,
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211 const char *msgid, ...)
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212 {
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213 va_list ap;
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214 bool ret;
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215
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216 va_start (ap, msgid);
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217
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218 ret = cpp_diagnostic_with_line (pfile, CPP_DL_PEDWARN, reason, src_loc,
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219 column, msgid, &ap);
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220
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221 va_end (ap);
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222 return ret;
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223 }
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224
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225 /* Print a warning, including system headers. The warning reason may be
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226 given in REASON. */
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227
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228 bool
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229 cpp_warning_with_line_syshdr (cpp_reader *pfile, enum cpp_warning_reason reason,
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230 location_t src_loc, unsigned int column,
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diff changeset
231 const char *msgid, ...)
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232 {
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233 va_list ap;
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234 bool ret;
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235
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236 va_start (ap, msgid);
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237
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238 ret = cpp_diagnostic_with_line (pfile, CPP_DL_WARNING_SYSHDR, reason, src_loc,
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239 column, msgid, &ap);
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240
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diff changeset
241 va_end (ap);
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242 return ret;
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243 }
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244
111
kono
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245 /* As cpp_error, but use SRC_LOC as the location of the error, without
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246 a column override. */
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247
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248 bool
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249 cpp_error_at (cpp_reader * pfile, enum cpp_diagnostic_level level,
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250 location_t src_loc, const char *msgid, ...)
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251 {
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252 va_list ap;
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253 bool ret;
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254
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255 va_start (ap, msgid);
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256
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257 rich_location richloc (pfile->line_table, src_loc);
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258 ret = cpp_diagnostic_at (pfile, level, CPP_W_NONE, &richloc,
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259 msgid, &ap);
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260
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261 va_end (ap);
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262 return ret;
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263 }
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264
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265 /* As cpp_error, but use RICHLOC as the location of the error, without
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266 a column override. */
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267
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268 bool
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269 cpp_error_at (cpp_reader * pfile, enum cpp_diagnostic_level level,
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270 rich_location *richloc, const char *msgid, ...)
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271 {
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272 va_list ap;
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273 bool ret;
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274
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275 va_start (ap, msgid);
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276
131
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277 ret = cpp_diagnostic_at (pfile, level, CPP_W_NONE, richloc,
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278 msgid, &ap);
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279
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280 va_end (ap);
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281 return ret;
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282 }
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283
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284 /* Print a warning or error, depending on the value of LEVEL. Include
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285 information from errno. */
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286
55
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287 bool
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288 cpp_errno (cpp_reader *pfile, enum cpp_diagnostic_level level,
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289 const char *msgid)
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290 {
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291 return cpp_error (pfile, level, "%s: %s", _(msgid), xstrerror (errno));
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292 }
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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. Unlike cpp_errno, the argument is a filename
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296 that is not localized, but "" is replaced with localized "stdout". */
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297
111
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298 bool
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299 cpp_errno_filename (cpp_reader *pfile, enum cpp_diagnostic_level level,
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300 const char *filename,
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301 location_t loc)
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302 {
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303 if (filename[0] == '\0')
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304 filename = _("stdout");
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305
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306 return cpp_error_at (pfile, level, loc, "%s: %s", filename,
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307 xstrerror (errno));
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308 }