Mercurial > hg > octave-lojdl > gnulib-hg
view lib/xvasprintf.h @ 14641:9a3f3761a941
getcwd: fix mingw bugs
On mingw, getcwd(NULL,1) succeeds, even though glibc documents that
with a non-zero size, the allocation will not exceed that many bytes.
On mingw, getcwd has the wrong signature. However, we don't have
to check for this if anything else triggers the replacement.
Also, fix a type bug that crept into the original getcwd-lgpl commit.
* m4/getcwd.m4 (gl_FUNC_GETCWD_NULL): Detect one mingw bug.
* doc/posix-functions/getcwd.texi (getcwd): Document the problems.
* lib/getcwd-lgpl.c (rpl_getcwd): Fix return type.
Signed-off-by: Eric Blake <eblake@redhat.com>
author | Eric Blake <eblake@redhat.com> |
---|---|
date | Wed, 27 Apr 2011 20:40:21 -0600 |
parents | 4cf3b58aaf12 |
children | 8250f2777afc |
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/* vasprintf and asprintf with out-of-memory checking. Copyright (C) 2002-2004, 2006-2011 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 _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 */