New module: xprintf

[gnulib.git] / lib / xprintf.h

diff --git a/lib/xprintf.h b/lib/xprintf.h
new file mode 100644 (file)
index 0000000..4c0870c
--- /dev/null
+++ b/lib/xprintf.h
@@ -0,0 +1,40 @@
+/* printf wrappers that fail immediately for non-file-related errors
+   Copyright (C) 2007 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/>.  */
+
+#ifndef _XPRINTF_H
+#define _XPRINTF_H
+
+#include <stdio.h>
+
+#ifndef __attribute__
+/* This feature is available in gcc versions 2.5 and later.  */
+# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
+#  define __attribute__(Spec)  /* empty */
+# endif
+/* The __-protected variants of `format' and `printf' attributes
+   are accepted by gcc versions 2.6.4 (effectively 2.7) and later.  */
+# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
+#  define __format__ format
+#  define __printf__ printf
+# endif
+#endif
+
+extern int xprintf (char const *restrict format, ...)
+  __attribute__ ((__format__ (__printf__, 1, 2)));
+extern int xfprintf (FILE *restrict stream, char const *restrict format, ...)
+  __attribute__ ((__format__ (__printf__, 2, 3)));
+
+#endif