Mercurial > gnulib
view lib/xprintf.c @ 40209:c43e83386661
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author | Karl Berry <karl@freefriends.org> |
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date | Fri, 08 Mar 2019 09:27:47 -0800 |
parents | b06060465f09 |
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/* printf wrappers that fail immediately for non-file-related errors Copyright (C) 2007, 2009-2019 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 <https://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; }