1 /* printf wrappers that fail immediately for non-file-related errors 2 Copyright (C) 2007-2018 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 General Public License as published by 6 the Free Software Foundation; either version 3 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 General Public License for more details. 13 14 You should have received a copy of the GNU General Public License 15 along with this program. If not, see <https://www.gnu.org/licenses/>. */ 16 17 #ifndef _XPRINTF_H 18 #define _XPRINTF_H 19 20 #include <stdarg.h> 21 #include <stdio.h> 22 23 /* The __attribute__ feature is available in gcc versions 2.5 and later. 24 The __-protected variants of the attributes 'format' and 'printf' are 25 accepted by gcc versions 2.6.4 (effectively 2.7) and later. 26 We enable _GL_ATTRIBUTE_FORMAT only if these are supported too, because 27 gnulib and libintl do '#define printf __printf__' when they override 28 the 'printf' function. */ 29 #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7) 30 # define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec)) 31 #else 32 # define _GL_ATTRIBUTE_FORMAT(spec) /* empty */ 33 #endif 34 35 extern int xprintf (char const *restrict format, ...) 36 _GL_ATTRIBUTE_FORMAT ((__printf__, 1, 2)); 37 extern int xvprintf (char const *restrict format, va_list args) 38 _GL_ATTRIBUTE_FORMAT ((__printf__, 1, 0)); 39 extern int xfprintf (FILE *restrict stream, char const *restrict format, ...) 40 _GL_ATTRIBUTE_FORMAT ((__printf__, 2, 3)); 41 extern int xvfprintf (FILE *restrict stream, char const *restrict format, 42 va_list args) 43 _GL_ATTRIBUTE_FORMAT ((__printf__, 2, 0)); 44 45 #endif 46