kc3-lang/gnulib/lib/xprintf.c

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• Hash : d60f3b0c
  Author :
  Date : 2011-01-01T20:17:23
  

  maint: update almost all copyright ranges to include 2011
  
  Run the new "make update-copyright" rule.
  

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• lib/xprintf.c

• /* printf wrappers that fail immediately for non-file-related errors
     Copyright (C) 2007, 2009-2011 Free Software Foundation, Inc.
  
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 3 of the License, or
     (at your option) any later version.
  
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  
  #include <config.h>
  
  #include "xprintf.h"
  
  #include <errno.h>
  
  #include "error.h"
  #include "exitfail.h"
  #include "gettext.h"
  
  /* written by Jim Meyering */
  
  /* Just like printf, but call error if it fails without setting the
     stream's error indicator.  */
  int
  xprintf (char const *restrict format, ...)
  {
    va_list args;
    int retval;
    va_start (args, format);
    retval = xvprintf (format, args);
    va_end (args);
  
    return retval;
  }
  
  /* Just like vprintf, but call error if it fails without setting the
     stream's error indicator.  */
  int
  xvprintf (char const *restrict format, va_list args)
  {
    int retval = vprintf (format, args);
    if (retval < 0 && ! ferror (stdout))
      error (exit_failure, errno, gettext ("cannot perform formatted output"));
  
    return retval;
  }
  
  /* Just like fprintf, but call error if it fails without setting the
     stream's error indicator.  */
  int
  xfprintf (FILE *restrict stream, char const *restrict format, ...)
  {
    va_list args;
    int retval;
    va_start (args, format);
    retval = xvfprintf (stream, format, args);
    va_end (args);
  
    return retval;
  }
  
  /* Just like vfprintf, but call error if it fails without setting the
     stream's error indicator.  */
  int
  xvfprintf (FILE *restrict stream, char const *restrict format, va_list args)
  {
    int retval = vfprintf (stream, format, args);
    if (retval < 0 && ! ferror (stream))
      error (exit_failure, errno, gettext ("cannot perform formatted output"));
  
    return retval;
  }
  

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