1#ifndef foogccmacrohfoo 2#define foogccmacrohfoo 3 4/* $Id$ */ 5 6/*** 7 This file is part of avahi. 8 9 avahi is free software; you can redistribute it and/or modify it 10 under the terms of the GNU Lesser General Public License as 11 published by the Free Software Foundation; either version 2.1 of the 12 License, or (at your option) any later version. 13 14 avahi is distributed in the hope that it will be useful, but WITHOUT 15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 16 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General 17 Public License for more details. 18 19 You should have received a copy of the GNU Lesser General Public 20 License along with avahi; if not, write to the Free Software 21 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 22 USA. 23***/ 24 25/** \file gccmacro.h Defines some macros for GCC extensions */ 26 27#include <avahi-common/cdecl.h> 28 29AVAHI_C_DECL_BEGIN 30 31#if defined(__GNUC__) && (__GNUC__ >= 4) && (__GNUC_MINOR__ >= 3) 32#define AVAHI_GCC_ALLOC_SIZE(x) __attribute__ ((__alloc_size__(x))) 33#define AVAHI_GCC_ALLOC_SIZE2(x,y) __attribute__ ((__alloc_size__(x,y))) 34#else 35/** Macro for usage of GCC's alloc_size attribute */ 36#define AVAHI_GCC_ALLOC_SIZE(x) 37#define AVAHI_GCC_ALLOC_SIZE2(x,y) 38#endif 39 40#if defined(__GNUC__) && (__GNUC__ >= 4) 41#define AVAHI_GCC_SENTINEL __attribute__ ((sentinel)) 42#else 43/** Macro for usage of GCC's sentinel compilation warnings */ 44#define AVAHI_GCC_SENTINEL 45#endif 46 47#ifdef __GNUC__ 48#define AVAHI_GCC_PRINTF_ATTR(a,b) __attribute__ ((format (printf, a, b))) 49#else 50/** Macro for usage of GCC's printf compilation warnings */ 51#define AVAHI_GCC_PRINTF_ATTR(a,b) 52#endif 53 54/** Same as AVAHI_GCC_PRINTF_ATTR but hard coded to arguments 1 and 2 */ 55#define AVAHI_GCC_PRINTF_ATTR12 AVAHI_GCC_PRINTF_ATTR(1,2) 56 57/** Same as AVAHI_GCC_PRINTF_ATTR but hard coded to arguments 2 and 3 */ 58#define AVAHI_GCC_PRINTF_ATTR23 AVAHI_GCC_PRINTF_ATTR(2,3) 59 60#ifdef __GNUC__ 61#define AVAHI_GCC_NORETURN __attribute__((noreturn)) 62#else 63/** Macro for no-return functions */ 64#define AVAHI_GCC_NORETURN 65#endif 66 67#ifdef __GNUC__ 68#define AVAHI_GCC_UNUSED __attribute__ ((unused)) 69#else 70/** Macro for not used parameter */ 71#define AVAHI_GCC_UNUSED 72#endif 73 74AVAHI_C_DECL_END 75 76#endif 77