+
−/* printf wrappers that fail immediately for non-file-related errors
+
−   Copyright (C) 2007, 2009 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;
+
−}