Mercurial > gnulib
view lib/xvasprintf.h @ 40086:d6de7c427079
stdopen: modernize and simplify
* lib/stdopen.c: Update copyright date
Do not include sys/types.h; no longer needed these days.
(stdopen): Use C99-style decl in loop. Return int errno
value, rather than just a bool. Do not worry about fd mismatches,
since the caller cares only if 0, 1, 2 are occupied.
* lib/stdopen.h: No need to include <stdbool.h>.
* m4/stdopen.m4: Remove.
* modules/stdopen: New file.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Sat, 05 Jan 2019 18:02:32 -0800 |
parents | b06060465f09 |
children |
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/* vasprintf and asprintf with out-of-memory checking. Copyright (C) 2002-2004, 2006-2019 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 <https://www.gnu.org/licenses/>. */ #ifndef _XVASPRINTF_H #define _XVASPRINTF_H /* Get va_list. */ #include <stdarg.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 #ifdef __cplusplus extern "C" { #endif /* Write formatted output to a string dynamically allocated with malloc(), and return it. Upon [ENOMEM] memory allocation error, call xalloc_die. On some other error - [EOVERFLOW] resulting string length is > INT_MAX, - [EINVAL] invalid format string, - [EILSEQ] error during conversion between wide and multibyte characters, return NULL. */ extern char *xasprintf (const char *format, ...) _GL_ATTRIBUTE_FORMAT ((__printf__, 1, 2)); extern char *xvasprintf (const char *format, va_list args) _GL_ATTRIBUTE_FORMAT ((__printf__, 1, 0)); #ifdef __cplusplus } #endif #endif /* _XVASPRINTF_H */