1  /* Formatted output to a stream.
       2     Copyright (C) 2007, 2010-2023 Free Software Foundation, Inc.
       3  
       4     This file is free software: you can redistribute it and/or modify
       5     it under the terms of the GNU Lesser General Public License as
       6     published by the Free Software Foundation, either version 3 of the
       7     License, or (at your option) any later version.
       8  
       9     This file 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  #ifdef HAVE_CONFIG_H
      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  }