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author | Lorry Tar Creator <lorry-tar-importer@lorry> | 2016-01-20 10:55:18 +0000 |
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committer | Lorry Tar Creator <lorry-tar-importer@lorry> | 2016-01-20 10:55:18 +0000 |
commit | 70e9163c9c18e995515598085cb824e554eb7ae7 (patch) | |
tree | a42dc8b2a6c031354bf31472de888bfc8a060132 /lib/xprintf.h | |
parent | cbf5993c43f49281173f185863577d86bfac6eae (diff) | |
download | coreutils-tarball-70e9163c9c18e995515598085cb824e554eb7ae7.tar.gz |
coreutils-8.25HEADcoreutils-8.25master
Diffstat (limited to 'lib/xprintf.h')
-rw-r--r-- | lib/xprintf.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/lib/xprintf.h b/lib/xprintf.h new file mode 100644 index 0000000..31ae6f9 --- /dev/null +++ b/lib/xprintf.h @@ -0,0 +1,45 @@ +/* printf wrappers that fail immediately for non-file-related errors + Copyright (C) 2007-2016 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +#ifndef _XPRINTF_H +#define _XPRINTF_H + +#include <stdarg.h> +#include <stdio.h> + +/* The __attribute__ feature is available in gcc versions 2.5 and later. + The __-protected variants of the attributes 'format' and 'printf' are + accepted by gcc versions 2.6.4 (effectively 2.7) and later. + We enable _GL_ATTRIBUTE_FORMAT only if these are supported too, because + gnulib and libintl do '#define printf __printf__' when they override + the 'printf' function. */ +#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7) +# define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec)) +#else +# define _GL_ATTRIBUTE_FORMAT(spec) /* empty */ +#endif + +extern int xprintf (char const *restrict format, ...) + _GL_ATTRIBUTE_FORMAT ((__printf__, 1, 2)); +extern int xvprintf (char const *restrict format, va_list args) + _GL_ATTRIBUTE_FORMAT ((__printf__, 1, 0)); +extern int xfprintf (FILE *restrict stream, char const *restrict format, ...) + _GL_ATTRIBUTE_FORMAT ((__printf__, 2, 3)); +extern int xvfprintf (FILE *restrict stream, char const *restrict format, + va_list args) + _GL_ATTRIBUTE_FORMAT ((__printf__, 2, 0)); + +#endif |