1 /* Formatted output to a stream. 2 Copyright (C) 2007, 2010-2012 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 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 <http://www.gnu.org/licenses/>. */ 16 17 #if 1 18 # include <config.h> 19 #endif 20 21 /* Specification. */ 22 #include <stdio.h> 23 24 #include <stdarg.h> 25 26 /* Print formatted output to standard output. 27 Return string length of formatted string. On error, return a negative 28 value. */ 29 int 30 printf (const char *format, ...) 31 { 32 int retval; 33 va_list args; 34 35 va_start (args, format); 36 retval = vfprintf (stdout, format, args); 37 va_end (args); 38 39 return retval; 40 } 41
