Mercurial > hg > CbC > CbC_gcc
annotate libcpp/errors.c @ 158:494b0b89df80 default tip
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author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Mon, 25 May 2020 18:13:55 +0900 |
parents | 1830386684a0 |
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rev | line source |
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0 | 1 /* Default error handlers for CPP Library. |
145 | 2 Copyright (C) 1986-2020 Free Software Foundation, Inc. |
0 | 3 Written by Per Bothner, 1994. |
4 Based on CCCP program by Paul Rubin, June 1986 | |
5 Adapted to ANSI C, Richard Stallman, Jan 1987 | |
6 | |
7 This program is free software; you can redistribute it and/or modify it | |
8 under the terms of the GNU General Public License as published by the | |
9 Free Software Foundation; either version 3, or (at your option) any | |
10 later version. | |
11 | |
12 This program is distributed in the hope that it will be useful, | |
13 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 GNU General Public License for more details. | |
16 | |
17 You should have received a copy of the GNU General Public License | |
18 along with this program; see the file COPYING3. If not see | |
19 <http://www.gnu.org/licenses/>. | |
20 | |
21 In other words, you are welcome to use, share and improve this program. | |
22 You are forbidden to forbid anyone else to use, share and improve | |
23 what you give them. Help stamp out software-hoarding! */ | |
24 | |
25 #include "config.h" | |
26 #include "system.h" | |
27 #include "cpplib.h" | |
28 #include "internal.h" | |
29 | |
111 | 30 /* Print a diagnostic at the given location. */ |
31 | |
32 ATTRIBUTE_FPTR_PRINTF(5,0) | |
33 static bool | |
131 | 34 cpp_diagnostic_at (cpp_reader * pfile, enum cpp_diagnostic_level level, |
35 enum cpp_warning_reason reason, rich_location *richloc, | |
111 | 36 const char *msgid, va_list *ap) |
37 { | |
38 bool ret; | |
39 | |
131 | 40 if (!pfile->cb.diagnostic) |
111 | 41 abort (); |
131 | 42 ret = pfile->cb.diagnostic (pfile, level, reason, richloc, _(msgid), ap); |
111 | 43 |
44 return ret; | |
45 } | |
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 |
131 | 51 cpp_diagnostic (cpp_reader * pfile, enum cpp_diagnostic_level level, |
52 enum cpp_warning_reason reason, | |
53 const char *msgid, va_list *ap) | |
0 | 54 { |
145 | 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 { |
111 | 68 src_loc = 0; |
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69 } |
0 | 70 else |
71 { | |
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72 src_loc = pfile->cur_token[-1].src_loc; |
0 | 73 } |
131 | 74 rich_location richloc (pfile->line_table, src_loc); |
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 |
131 | 81 cpp_error (cpp_reader * pfile, enum cpp_diagnostic_level level, |
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 |
131 | 98 cpp_warning (cpp_reader * pfile, enum cpp_warning_reason reason, |
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 |
0 | 108 va_end (ap); |
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109 return ret; |
0 | 110 } |
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 |
131 | 115 cpp_pedwarning (cpp_reader * pfile, enum cpp_warning_reason reason, |
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 |
131 | 133 cpp_warning_syshdr (cpp_reader * pfile, enum cpp_warning_reason reason, |
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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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 | 151 cpp_diagnostic_with_line (cpp_reader * pfile, enum cpp_diagnostic_level level, |
152 enum cpp_warning_reason reason, | |
145 | 153 location_t src_loc, unsigned int column, |
131 | 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 | 158 if (!pfile->cb.diagnostic) |
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159 abort (); |
111 | 160 rich_location richloc (pfile->line_table, src_loc); |
161 if (column) | |
162 richloc.override_column (column); | |
131 | 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 |
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170 bool |
131 | 171 cpp_error_with_line (cpp_reader *pfile, enum cpp_diagnostic_level level, |
145 | 172 location_t src_loc, unsigned int column, |
0 | 173 const char *msgid, ...) |
174 { | |
175 va_list ap; | |
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176 bool ret; |
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177 |
0 | 178 va_start (ap, msgid); |
179 | |
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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 | 190 cpp_warning_with_line (cpp_reader *pfile, enum cpp_warning_reason reason, |
145 | 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); |
0 | 201 |
202 va_end (ap); | |
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203 return ret; |
0 | 204 } |
205 | |
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206 /* Print a pedantic warning. The warning reason may be given in REASON. */ |
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207 |
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208 bool |
131 | 209 cpp_pedwarning_with_line (cpp_reader *pfile, enum cpp_warning_reason reason, |
145 | 210 location_t src_loc, unsigned int column, |
131 | 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 |
131 | 229 cpp_warning_with_line_syshdr (cpp_reader *pfile, enum cpp_warning_reason reason, |
145 | 230 location_t src_loc, unsigned int column, |
131 | 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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241 va_end (ap); |
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242 return ret; |
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243 } |
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244 |
111 | 245 /* As cpp_error, but use SRC_LOC as the location of the error, without |
246 a column override. */ | |
247 | |
248 bool | |
131 | 249 cpp_error_at (cpp_reader * pfile, enum cpp_diagnostic_level level, |
145 | 250 location_t src_loc, const char *msgid, ...) |
111 | 251 { |
252 va_list ap; | |
253 bool ret; | |
254 | |
255 va_start (ap, msgid); | |
256 | |
131 | 257 rich_location richloc (pfile->line_table, src_loc); |
258 ret = cpp_diagnostic_at (pfile, level, CPP_W_NONE, &richloc, | |
111 | 259 msgid, &ap); |
260 | |
261 va_end (ap); | |
262 return ret; | |
263 } | |
264 | |
265 /* As cpp_error, but use RICHLOC as the location of the error, without | |
266 a column override. */ | |
267 | |
268 bool | |
131 | 269 cpp_error_at (cpp_reader * pfile, enum cpp_diagnostic_level level, |
270 rich_location *richloc, const char *msgid, ...) | |
111 | 271 { |
272 va_list ap; | |
273 bool ret; | |
274 | |
275 va_start (ap, msgid); | |
276 | |
131 | 277 ret = cpp_diagnostic_at (pfile, level, CPP_W_NONE, richloc, |
278 msgid, &ap); | |
111 | 279 |
280 va_end (ap); | |
281 return ret; | |
282 } | |
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 |
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287 bool |
131 | 288 cpp_errno (cpp_reader *pfile, enum cpp_diagnostic_level level, |
289 const char *msgid) | |
0 | 290 { |
111 | 291 return cpp_error (pfile, level, "%s: %s", _(msgid), xstrerror (errno)); |
292 } | |
293 | |
294 /* Print a warning or error, depending on the value of LEVEL. Include | |
295 information from errno. Unlike cpp_errno, the argument is a filename | |
296 that is not localized, but "" is replaced with localized "stdout". */ | |
0 | 297 |
111 | 298 bool |
131 | 299 cpp_errno_filename (cpp_reader *pfile, enum cpp_diagnostic_level level, |
300 const char *filename, | |
145 | 301 location_t loc) |
111 | 302 { |
303 if (filename[0] == '\0') | |
304 filename = _("stdout"); | |
305 | |
306 return cpp_error_at (pfile, level, loc, "%s: %s", filename, | |
307 xstrerror (errno)); | |
0 | 308 } |