1 /* -*- buffer-read-only: t -*- vi: set ro: */
2 /* DO NOT EDIT! GENERATED AUTOMATICALLY! */
3 /* vsprintf with automatic memory allocation.
4 Copyright (C) 2002-2004, 2007-2013 Free Software Foundation, Inc.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3, or (at your option)
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 General Public License for more details.
16 You should have received a copy of the GNU General Public License along
17 with this program; if not, see <http://www.gnu.org/licenses/>. */
28 /* The __attribute__ feature is available in gcc versions 2.5 and later.
29 The __-protected variants of the attributes 'format' and 'printf' are
30 accepted by gcc versions 2.6.4 (effectively 2.7) and later.
31 We enable _GL_ATTRIBUTE_FORMAT only if these are supported too, because
32 gnulib and libintl do '#define printf __printf__' when they override
33 the 'printf' function. */
34 #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
35 # define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))
37 # define _GL_ATTRIBUTE_FORMAT(spec) /* empty */
44 /* Write formatted output to a string dynamically allocated with malloc().
45 You can pass a preallocated buffer for the result in RESULTBUF and its
46 size in *LENGTHP; otherwise you pass RESULTBUF = NULL.
47 If successful, return the address of the string (this may be = RESULTBUF
48 if no dynamic memory allocation was necessary) and set *LENGTHP to the
49 number of resulting bytes, excluding the trailing NUL. Upon error, set
50 errno and return NULL.
52 When dynamic memory allocation occurs, the preallocated buffer is left
53 alone (with possibly modified contents). This makes it possible to use
54 a statically allocated or stack-allocated buffer, like this:
57 size_t len = sizeof (buf);
58 char *output = vasnprintf (buf, &len, format, args);
60 ... error handling ...;
63 ... use the output string ...;
68 #if REPLACE_VASNPRINTF
69 # define asnprintf rpl_asnprintf
70 # define vasnprintf rpl_vasnprintf
72 extern char * asnprintf (char *resultbuf, size_t *lengthp, const char *format, ...)
73 _GL_ATTRIBUTE_FORMAT ((__printf__, 3, 4));
74 extern char * vasnprintf (char *resultbuf, size_t *lengthp, const char *format, va_list args)
75 _GL_ATTRIBUTE_FORMAT ((__printf__, 3, 0));
81 #endif /* _VASNPRINTF_H */