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-rw-r--r--gl/vasprintf.h63
1 files changed, 63 insertions, 0 deletions
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1/* vsprintf with automatic memory allocation.
2 Copyright (C) 2002-2003 Free Software Foundation, Inc.
3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
7 any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software Foundation,
16 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
17
18#ifndef _VASPRINTF_H
19#define _VASPRINTF_H
20
21#if HAVE_VASPRINTF
22
23/* Get asprintf(), vasprintf() declarations. */
24#include <stdio.h>
25
26#else
27
28/* Get va_list. */
29#include <stdarg.h>
30
31#ifndef __attribute__
32/* This feature is available in gcc versions 2.5 and later. */
33# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
34# define __attribute__(Spec) /* empty */
35# endif
36/* The __-protected variants of `format' and `printf' attributes
37 are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */
38# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
39# define __format__ format
40# define __printf__ printf
41# endif
42#endif
43
44#ifdef __cplusplus
45extern "C" {
46#endif
47
48/* Write formatted output to a string dynamically allocated with malloc().
49 If the memory allocation succeeds, store the address of the string in
50 *RESULT and return the number of resulting bytes, excluding the trailing
51 NUL. Upon memory allocation error, or some other error, return -1. */
52extern int asprintf (char **result, const char *format, ...)
53 __attribute__ ((__format__ (__printf__, 2, 3)));
54extern int vasprintf (char **result, const char *format, va_list args)
55 __attribute__ ((__format__ (__printf__, 2, 0)));
56
57#ifdef __cplusplus
58}
59#endif
60
61#endif
62
63#endif /* _VASPRINTF_H */