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author | Suchang Woo <suchang.woo@samsung.com> | 2015-12-18 13:25:01 +0900 |
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committer | Suchang Woo <suchang.woo@samsung.com> | 2015-12-18 13:25:01 +0900 |
commit | c422f95670269a00181e4a8152f098dde21ea089 (patch) | |
tree | 0c8ec1283fc576d0fbfd1ae5769823ec3676a962 /intl/vasnprintf.h | |
download | sed-upstream.tar.gz sed-upstream.tar.bz2 sed-upstream.zip |
Imported Upstream version 4.1cupstream/4.1cupstream
Diffstat (limited to 'intl/vasnprintf.h')
-rw-r--r-- | intl/vasnprintf.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/intl/vasnprintf.h b/intl/vasnprintf.h new file mode 100644 index 0000000..e67b88d --- /dev/null +++ b/intl/vasnprintf.h @@ -0,0 +1,78 @@ +/* vsprintf with automatic memory allocation. + Copyright (C) 2002-2004 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify it + under the terms of the GNU Library General Public License as published + by the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, + USA. */ + +#ifndef _VASNPRINTF_H +#define _VASNPRINTF_H + +/* Get va_list. */ +#include <stdarg.h> + +/* Get size_t. */ +#include <stddef.h> + +#ifndef __attribute__ +/* This feature is available in gcc versions 2.5 and later. */ +# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__ +# define __attribute__(Spec) /* empty */ +# endif +/* The __-protected variants of `format' and `printf' attributes + are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */ +# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7) +# define __format__ format +# define __printf__ printf +# endif +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +/* Write formatted output to a string dynamically allocated with malloc(). + You can pass a preallocated buffer for the result in RESULTBUF and its + size in *LENGTHP; otherwise you pass RESULTBUF = NULL. + If successful, return the address of the string (this may be = RESULTBUF + if no dynamic memory allocation was necessary) and set *LENGTHP to the + number of resulting bytes, excluding the trailing NUL. Upon error, set + errno and return NULL. + + When dynamic memory allocation occurs, the preallocated buffer is left + alone (with possibly modified contents). This makes it possible to use + a statically allocated or stack-allocated buffer, like this: + + char buf[100]; + size_t len = sizeof (buf); + char *output = vasnprintf (buf, &len, format, args); + if (output == NULL) + ... error handling ...; + else + { + ... use the output string ...; + if (output != buf) + free (output); + } + */ +extern char * asnprintf (char *resultbuf, size_t *lengthp, const char *format, ...) + __attribute__ ((__format__ (__printf__, 3, 4))); +extern char * vasnprintf (char *resultbuf, size_t *lengthp, const char *format, va_list args) + __attribute__ ((__format__ (__printf__, 3, 0))); + +#ifdef __cplusplus +} +#endif + +#endif /* _VASNPRINTF_H */ |