1/* Implement the xvasprintf function.
2 Copyright (C) 2014-2024 Free Software Foundation, Inc.
3 Contributed by Manuel Lopez-Ibanez.
4
5This file is part of the libiberty library.
6Libiberty is free software; you can redistribute it and/or
7modify it under the terms of the GNU Library General Public
8License as published by the Free Software Foundation; either
9version 2 of the License, or (at your option) any later version.
10
11Libiberty is distributed in the hope that it will be useful,
12but WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14Library General Public License for more details.
15
16You should have received a copy of the GNU Library General Public
17License along with libiberty; see the file COPYING.LIB. If not, write
18to the Free Software Foundation, Inc., 51 Franklin Street - Fifth
19Floor, Boston, MA 02110-1301, USA. */
20
21#ifdef HAVE_CONFIG_H
22#include "config.h"
23#endif
24#include <ansidecl.h>
25#include <stdarg.h>
26#if !defined (va_copy) && defined (__va_copy)
27# define va_copy(d,s) __va_copy((d),(s))
28#endif
29#include <stdio.h>
30#ifdef HAVE_STRING_H
31#include <string.h>
32#endif
33#include "libiberty.h"
34#include "vprintf-support.h"
35
36/*
37
38@deftypefn Replacement char* xvasprintf (const char *@var{format}, va_list @var{args})
39
40Print to allocated string without fail. If @code{xvasprintf} fails,
41this will print a message to @code{stderr} (using the name set by
42@code{xmalloc_set_program_name}, if any) and then call @code{xexit}.
43
44@end deftypefn
45
46*/
47
48char *
49xvasprintf (const char *format,
50#if defined (_BSD_VA_LIST_) && defined (__FreeBSD__)
51 _BSD_VA_LIST_ args)
52#else
53 va_list args)
54#endif
55{
56 char *result;
57 int total_width = libiberty_vprintf_buffer_size (format, args);
58 result = (char *) xmalloc (total_width);
59 vsprintf (s: result, format: format, arg: args);
60 return result;
61}
62

source code of libiberty/xvasprintf.c