#ifndef foogccmacrohfoo
#define foogccmacrohfoo
-/* $Id$ */
-
/***
This file is part of avahi.
-
+
avahi is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
-
+
avahi 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 Lesser General
Public License for more details.
-
+
You should have received a copy of the GNU Lesser General Public
License along with avahi; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
-#ifdef __GNUC__
+/** \file gccmacro.h Defines some macros for GCC extensions */
+
+#include <avahi-common/cdecl.h>
+
+AVAHI_C_DECL_BEGIN
+
+#if defined(__GNUC__) && (__GNUC__ >= 4) && (__GNUC_MINOR__ >= 3)
+#define AVAHI_GCC_ALLOC_SIZE(x) __attribute__ ((__alloc_size__(x)))
+#define AVAHI_GCC_ALLOC_SIZE2(x,y) __attribute__ ((__alloc_size__(x,y)))
+#else
+/** Macro for usage of GCC's alloc_size attribute */
+#define AVAHI_GCC_ALLOC_SIZE(x)
+#define AVAHI_GCC_ALLOC_SIZE2(x,y)
+#endif
+
+#if defined(__GNUC__) && (__GNUC__ >= 4)
#define AVAHI_GCC_SENTINEL __attribute__ ((sentinel))
#else
+/** Macro for usage of GCC's sentinel compilation warnings */
#define AVAHI_GCC_SENTINEL
#endif
#define AVAHI_GCC_PRINTF_ATTR(a,b)
#endif
+/** Same as AVAHI_GCC_PRINTF_ATTR but hard coded to arguments 1 and 2 */
#define AVAHI_GCC_PRINTF_ATTR12 AVAHI_GCC_PRINTF_ATTR(1,2)
+
+/** Same as AVAHI_GCC_PRINTF_ATTR but hard coded to arguments 2 and 3 */
#define AVAHI_GCC_PRINTF_ATTR23 AVAHI_GCC_PRINTF_ATTR(2,3)
#ifdef __GNUC__
#define AVAHI_GCC_NORETURN __attribute__((noreturn))
#else
+/** Macro for no-return functions */
#define AVAHI_GCC_NORETURN
#endif
+#ifdef __GNUC__
+#define AVAHI_GCC_UNUSED __attribute__ ((unused))
+#else
+/** Macro for not used parameter */
+#define AVAHI_GCC_UNUSED
+#endif
+
+AVAHI_C_DECL_END
+
#endif