1 /* Default error handlers for CPP Library. 2 Copyright (C) 1986, 1987, 1989, 1992, 1993, 1994, 1995, 1998, 1999, 2000, 3 2001, 2002, 2004, 2008, 2009 Free Software Foundation, Inc. 4 Written by Per Bothner, 1994. 5 Based on CCCP program by Paul Rubin, June 1986 6 Adapted to ANSI C, Richard Stallman, Jan 1987 7 8 This program is free software; you can redistribute it and/or modify it 9 under the terms of the GNU General Public License as published by the 10 Free Software Foundation; either version 3, or (at your option) any 11 later version. 12 13 This program is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with this program; see the file COPYING3. If not see 20 <http://www.gnu.org/licenses/>. 21 22 In other words, you are welcome to use, share and improve this program. 23 You are forbidden to forbid anyone else to use, share and improve 24 what you give them. Help stamp out software-hoarding! */ 25 26 #include "config.h" 27 #include "system.h" 28 #include "cpplib.h" 29 #include "internal.h" 30 31 /* Print an error at the location of the previously lexed token. */ 32 bool 33 cpp_error (cpp_reader * pfile, int level, const char *msgid, ...) 34 { 35 source_location src_loc; 36 va_list ap; 37 bool ret; 38 39 va_start (ap, msgid); 40 41 if (CPP_OPTION (pfile, traditional)) 42 { 43 if (pfile->state.in_directive) 44 src_loc = pfile->directive_line; 45 else 46 src_loc = pfile->line_table->highest_line; 47 } 48 /* We don't want to refer to a token before the beginning of the 49 current run -- that is invalid. */ 50 else if (pfile->cur_token == pfile->cur_run->base) 51 { 52 if (pfile->cur_run->prev != NULL) 53 src_loc = pfile->cur_run->prev->limit->src_loc; 54 else 55 src_loc = 0; 56 } 57 else 58 { 59 src_loc = pfile->cur_token[-1].src_loc; 60 } 61 62 if (!pfile->cb.error) 63 abort (); 64 ret = pfile->cb.error (pfile, level, src_loc, 0, _(msgid), &ap); 65 66 va_end (ap); 67 return ret; 68 } 69 70 /* Print an error at a specific location. */ 71 bool 72 cpp_error_with_line (cpp_reader *pfile, int level, 73 source_location src_loc, unsigned int column, 74 const char *msgid, ...) 75 { 76 va_list ap; 77 bool ret; 78 79 va_start (ap, msgid); 80 81 if (!pfile->cb.error) 82 abort (); 83 ret = pfile->cb.error (pfile, level, src_loc, column, _(msgid), &ap); 84 85 va_end (ap); 86 return ret; 87 } 88 89 bool 90 cpp_errno (cpp_reader *pfile, int level, const char *msgid) 91 { 92 if (msgid[0] == '\0') 93 msgid = _("stdout"); 94 95 return cpp_error (pfile, level, "%s: %s", msgid, xstrerror (errno)); 96 } 97