-/* PSPP - computes sample statistics.
- Copyright (C) 2006 Free Software Foundation, Inc.
- Written by Ben Pfaff <blp@gnu.org>.
+/* PSPP - a program for statistical analysis.
+ Copyright (C) 2006, 2009, 2010, 2016 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 2 of the
- License, or (at your option) any later version.
+ 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.
+ 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, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef COMPILER_H
#define COMPILER_H 1
#define ATTRIBUTE(X)
#endif
+/* Marks a function argument as possibly not used. */
#define UNUSED ATTRIBUTE ((unused))
+
+/* Marks a function that will never return. */
#define NO_RETURN ATTRIBUTE ((noreturn))
-#define PRINTF_FORMAT(FMT, FIRST) ATTRIBUTE ((format (printf, FMT, FIRST)))
-#define SCANF_FORMAT(FMT, FIRST) ATTRIBUTE ((format (scanf, FMT, FIRST)))
-/* This attribute was added late in the GCC 2.x cycle. */
+/* Mark a function as taking a printf- or scanf-like format
+ string as its FMT'th argument and that the FIRST'th argument
+ is the first one to be checked against the format string. */
+#if defined(__GNUC__) && ((__GNUC__ == 4 && __GNUC_MINOR__>= 4) || __GNUC__ > 4)
+#define PRINTF_FORMAT(FMT, FIRST) ATTRIBUTE ((format (gnu_printf, FMT, FIRST)))
+#else
+#define PRINTF_FORMAT(FMT, FIRST) ATTRIBUTE ((format (__printf__, FMT, FIRST)))
+#endif
+#define SCANF_FORMAT(FMT, FIRST) ATTRIBUTE ((format (__scanf__, FMT, FIRST)))
+
+/* Tells the compiler that a function may be treated as if any
+ non-`NULL' pointer it returns cannot alias any other pointer
+ valid when the function returns. */
#if __GNUC__ > 2
-#define MALLOC_LIKE ATTRIBUTE ((malloc))
+#define MALLOC_LIKE ATTRIBUTE ((__malloc__))
#else
#define MALLOC_LIKE
#endif
#define WARN_UNUSED_RESULT
#endif
+/* This attribute indicates that the function does not examine
+ any values except its arguments, and has no effects except the
+ return value. A function that has pointer arguments and
+ examines the data pointed to must _not_ be declared
+ `const'. */
+#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 5)
+#define CONST_FUNCTION ATTRIBUTE ((const))
+#else
+#define CONST_FUNCTION
+#endif
+
+/* This attribute indicates that the function has no effects
+ except the return value and its return value depends only on
+ the parameters and/or global variables. */
+#if __GNUC__ > 2
+#define PURE_FUNCTION ATTRIBUTE ((pure))
+#else
+#define PURE_FUNCTION
+#endif
+
+/* This attribute indicates that the argument with the given
+ IDX must be a null pointer. IDX counts backward in the
+ argument list, so that 0 is the last argument, 1 is the
+ second-from-last argument, and so on. */
+#if __GNUC__ > 3
+#define SENTINEL(IDX) ATTRIBUTE ((sentinel(IDX)))
+#else
+#define SENTINEL(IDX)
+#endif
+
+
+/* This attribute indicates that the function should be compiled
+ with the specified LEVEL, regardless of what has been specified
+ on the command line */
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR >= 4)
+#define OPTIMIZE(LEVEL) ATTRIBUTE ((optimize(LEVEL)))
+#else
+#define OPTIMIZE(LEVEL)
+#endif
+
+
#endif /* compiler.h */