1 /* vsprintf with automatic memory allocation. 2 Copyright (C) 2002-2003 Free Software Foundation, Inc. 3 4 This program is free software; you can redistribute it and/or modify it 5 under the terms of the GNU Library General Public License as published 6 by the Free Software Foundation; either version 2, or (at your option) 7 any later version. 8 9 This program is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Library General Public License for more details. 13 14 You should have received a copy of the GNU Library General Public 15 License along with this program; if not, write to the Free Software 16 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 17 USA. */ 18 19 #ifndef _VASNPRINTF_H 20 #define _VASNPRINTF_H 21 22 /* Get va_list. */ 23 #include <stdarg.h> 24 25 /* Get size_t. */ 26 #include <stddef.h> 27 28 #ifndef __attribute__ 29 /* This feature is available in gcc versions 2.5 and later. */ 30 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__ 31 # define __attribute__(Spec) /* empty */ 32 # endif 33 /* The __-protected variants of `format' and `printf' attributes 34 are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */ 35 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7) 36 # define __format__ format 37 # define __printf__ printf 38 # endif 39 #endif 40 41 #ifdef __cplusplus 42 extern "C" { 43 #endif 44 45 /* Write formatted output to a string dynamically allocated with malloc(). 46 You can pass a preallocated buffer for the result in RESULTBUF and its 47 size in *LENGTHP; otherwise you pass RESULTBUF = NULL. 48 If successful, return the address of the string (this may be = RESULTBUF 49 if no dynamic memory allocation was necessary) and set *LENGTHP to the 50 number of resulting bytes, excluding the trailing NUL. Upon error, set 51 errno and return NULL. */ 52 extern char * asnprintf (char *resultbuf, size_t *lengthp, const char *format, ...) 53 __attribute__ ((__format__ (__printf__, 3, 4))); 54 extern char * vasnprintf (char *resultbuf, size_t *lengthp, const char *format, va_list args) 55 __attribute__ ((__format__ (__printf__, 3, 0))); 56 57 #ifdef __cplusplus 58 } 59 #endif 60 61 #endif /* _VASNPRINTF_H */ 62
