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 42extern "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. */ 52extern char * asnprintf (char *resultbuf, size_t *lengthp, const char *format, ...) 53 __attribute__ ((__format__ (__printf__, 3, 4))); 54extern 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