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annotate lib/error.h @ 17342:c75939cb6254

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merge with default branch
author Michael Goffioul <michael.goffioul@gmail.com>
date Thu, 21 Feb 2013 14:57:31 +0000
parents e542fd46ad6f
children
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1 /* Declaration for error-reporting function
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2 Copyright (C) 1995-1997, 2003, 2006, 2008-2013 Free Software Foundation,
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3 Inc.
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4 This file is part of the GNU C Library.
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5
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6 This program is free software: you can redistribute it and/or modify
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 3 of the License, or
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9 (at your option) any later version.
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10
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11 This program is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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18
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19 #ifndef _ERROR_H
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20 #define _ERROR_H 1
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21
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22 /* The __attribute__ feature is available in gcc versions 2.5 and later.
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23 The __-protected variants of the attributes 'format' and 'printf' are
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24 accepted by gcc versions 2.6.4 (effectively 2.7) and later.
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25 We enable _GL_ATTRIBUTE_FORMAT only if these are supported too, because
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26 gnulib and libintl do '#define printf __printf__' when they override
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27 the 'printf' function. */
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28 #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
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29 # define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))
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30 #else
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31 # define _GL_ATTRIBUTE_FORMAT(spec) /* empty */
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32 #endif
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33
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34 #ifdef __cplusplus
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35 extern "C" {
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36 #endif
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37
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38 /* Print a message with 'fprintf (stderr, FORMAT, ...)';
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39 if ERRNUM is nonzero, follow it with ": " and strerror (ERRNUM).
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40 If STATUS is nonzero, terminate the program with 'exit (STATUS)'. */
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41
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42 extern void error (int __status, int __errnum, const char *__format, ...)
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43 _GL_ATTRIBUTE_FORMAT ((__printf__, 3, 4));
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44
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45 extern void error_at_line (int __status, int __errnum, const char *__fname,
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46 unsigned int __lineno, const char *__format, ...)
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47 _GL_ATTRIBUTE_FORMAT ((__printf__, 5, 6));
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48
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49 /* If NULL, error will flush stdout, then print on stderr the program
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50 name, a colon and a space. Otherwise, error will call this
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51 function without parameters instead. */
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52 extern void (*error_print_progname) (void);
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53
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54 /* This variable is incremented each time 'error' is called. */
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55 extern unsigned int error_message_count;
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56
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57 /* Sometimes we want to have at most one error per line. This
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58 variable controls whether this mode is selected or not. */
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59 extern int error_one_per_line;
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60
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61 #ifdef __cplusplus
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62 }
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63 #endif
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65 #endif /* error.h */