contrib: schroedinger: remove obsolete patches
[vlc/gmpfix.git] / compat / vasprintf.c
blob37d72d5da51c89fa747c37d15f18e7754d4beb4b
1 /*****************************************************************************
2 * vasprintf.c: GNU vasprintf() replacement
3 *****************************************************************************
4 * Copyright © 1998-2009 VLC authors and VideoLAN
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU Lesser General Public License as published by
8 * the Free Software Foundation; either version 2.1 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public License
17 * along with this program; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
19 *****************************************************************************/
21 #ifdef HAVE_CONFIG_H
22 # include <config.h>
23 #endif
25 #include <stdio.h>
26 #include <stdlib.h>
27 #include <stdarg.h>
28 #include <assert.h>
30 int vasprintf (char **strp, const char *fmt, va_list ap)
32 va_list args;
33 int len;
35 va_copy (args, ap);
36 len = vsnprintf (NULL, 0, fmt, args);
37 va_end (args);
39 char *str = malloc (len + 1);
40 if (str != NULL)
42 int len2;
44 va_copy (args, ap);
45 len2 = vsprintf (str, fmt, args);
46 assert (len2 == len);
47 va_end (args);
49 else
51 len = -1;
52 #ifndef NDEBUG
53 str = (void *)(intptr_t)0x41414141; /* poison */
54 #endif
56 *strp = str;
57 return len;