1 /* vsprintf with automatic memory allocation. 2 Copyright (C) 2002-2003, 2012 Free Software Foundation, Inc. 3 4 This program is free software: you can redistribute it and/or modify 5 it under the terms of the GNU Lesser General Public License as published by 6 the Free Software Foundation; either version 2.1 of the License, or 7 (at your option) 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 12 GNU Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public License 15 along with this program. If not, see <https://www.gnu.org/licenses/>. */ 16 17 #ifndef _VASPRINTF_H 18 #define _VASPRINTF_H 19 20 /* Get va_list. */ 21 #include <stdarg.h> 22 23 #ifndef __attribute__ 24 /* This feature is available in gcc versions 2.5 and later. */ 25 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__ 26 # define __attribute__(Spec) /* empty */ 27 # endif 28 /* The __-protected variants of 'format' and 'printf' attributes 29 are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */ 30 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7) 31 # define __format__ format 32 # define __printf__ printf 33 # endif 34 #endif 35 36 #ifdef __cplusplus 37 extern "C" { 38 #endif 39 40 /* Write formatted output to a string dynamically allocated with malloc(). 41 If the memory allocation succeeds, store the address of the string in 42 *RESULT and return the number of resulting bytes, excluding the trailing 43 NUL. Upon memory allocation error, or some other error, return -1. */ 44 extern int asprintf (char **result, const char *format, ...) 45 __attribute__ ((__format__ (__printf__, 2, 3))); 46 extern int vasprintf (char **result, const char *format, va_list args) 47 __attribute__ ((__format__ (__printf__, 2, 0))); 48 49 #ifdef __cplusplus 50 } 51 #endif 52 53 #endif /* _VASPRINTF_H */ 54