gstreamer/gst/printf/vasnprintf.h
Tim-Philipp Müller 8fc876f09f printf: add our own printf implementation for debug logging
We will add support for our own printf modifiers, so we can
get nice debug log output on all operating systems irrespective
of the specific libc version used.

https://bugzilla.gnome.org/show_bug.cgi?id=613081
2013-04-12 23:05:56 +01:00

61 lines
2.2 KiB
C

/* vsprintf with automatic memory allocation.
Copyright (C) 2002-2003 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU Library General Public License as published
by the Free Software Foundation; either version 2, 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
USA. */
#ifndef _VASNPRINTF_H
#define _VASNPRINTF_H
/* Get va_list. */
#include <stdarg.h>
/* Get size_t. */
#include <stddef.h>
#ifndef __attribute__
/* This feature is available in gcc versions 2.5 and later. */
# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
# define __attribute__(Spec) /* empty */
# endif
/* The __-protected variants of `format' and `printf' attributes
are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */
# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
# define __format__ format
# define __printf__ printf
# endif
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* Write formatted output to a string dynamically allocated with malloc().
You can pass a preallocated buffer for the result in RESULTBUF and its
size in *LENGTHP; otherwise you pass RESULTBUF = NULL.
If successful, return the address of the string (this may be = RESULTBUF
if no dynamic memory allocation was necessary) and set *LENGTHP to the
number of resulting bytes, excluding the trailing NUL. Upon error, set
errno and return NULL. */
extern char * asnprintf (char *resultbuf, size_t *lengthp, const char *format, ...)
__attribute__ ((__format__ (__printf__, 3, 4)));
extern char * vasnprintf (char *resultbuf, size_t *lengthp, const char *format, va_list args)
__attribute__ ((__format__ (__printf__, 3, 0)));
#ifdef __cplusplus
}
#endif
#endif /* _VASNPRINTF_H */