Mercurial > hg > CbC > CbC_gcc
comparison libiberty/asprintf.c @ 0:a06113de4d67
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author | kent <kent@cr.ie.u-ryukyu.ac.jp> |
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date | Fri, 17 Jul 2009 14:47:48 +0900 |
parents | |
children | 04ced10e8804 |
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1 /* Like sprintf but provides a pointer to malloc'd storage, which must | |
2 be freed by the caller. | |
3 Copyright (C) 1997, 2003 Free Software Foundation, Inc. | |
4 Contributed by Cygnus Solutions. | |
5 | |
6 This file is part of the libiberty library. | |
7 Libiberty is free software; you can redistribute it and/or | |
8 modify it under the terms of the GNU Library General Public | |
9 License as published by the Free Software Foundation; either | |
10 version 2 of the License, or (at your option) any later version. | |
11 | |
12 Libiberty is distributed in the hope that it will be useful, | |
13 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 Library General Public License for more details. | |
16 | |
17 You should have received a copy of the GNU Library General Public | |
18 License along with libiberty; see the file COPYING.LIB. If | |
19 not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, | |
20 Boston, MA 02110-1301, USA. */ | |
21 | |
22 #ifdef HAVE_CONFIG_H | |
23 #include "config.h" | |
24 #endif | |
25 #include "ansidecl.h" | |
26 #include "libiberty.h" | |
27 | |
28 #include <stdarg.h> | |
29 | |
30 /* | |
31 | |
32 @deftypefn Extension int asprintf (char **@var{resptr}, const char *@var{format}, ...) | |
33 | |
34 Like @code{sprintf}, but instead of passing a pointer to a buffer, you | |
35 pass a pointer to a pointer. This function will compute the size of | |
36 the buffer needed, allocate memory with @code{malloc}, and store a | |
37 pointer to the allocated memory in @code{*@var{resptr}}. The value | |
38 returned is the same as @code{sprintf} would return. If memory could | |
39 not be allocated, minus one is returned and @code{NULL} is stored in | |
40 @code{*@var{resptr}}. | |
41 | |
42 @end deftypefn | |
43 | |
44 */ | |
45 | |
46 int | |
47 asprintf (char **buf, const char *fmt, ...) | |
48 { | |
49 int status; | |
50 VA_OPEN (ap, fmt); | |
51 VA_FIXEDARG (ap, char **, buf); | |
52 VA_FIXEDARG (ap, const char *, fmt); | |
53 status = vasprintf (buf, fmt, ap); | |
54 VA_CLOSE (ap); | |
55 return status; | |
56 } |