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# src/gcc.h

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    00001 /*
    00002  * Copyright (C) 2003-2010 The Music Player Daemon Project
    00003  * http://www.musicpd.org
    00004  *
    00005  * This program is free software; you can redistribute it and/or modify
    00006  * it under the terms of the GNU General Public License as published by
    00007  * the Free Software Foundation; either version 2 of the License, or
    00008  * (at your option) any later version.
    00009  *
    00010  * This program is distributed in the hope that it will be useful,
    00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    00013  * GNU General Public License for more details.
    00014  *
    00015  * You should have received a copy of the GNU General Public License along
    00016  * with this program; if not, write to the Free Software Foundation, Inc.,
    00017  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
    00018  */
    00019
    00020 #ifndef MPD_GCC_H
    00021 #define MPD_GCC_H
    00022
    00023 /* this allows us to take advantage of special gcc features while still
    00024  * allowing other compilers to compile:
    00025  *
    00026  * example taken from: http://rlove.org/log/2005102601
    00027  */
    00028
    00029 #if defined(__GNUC__) && (__GNUC__ >= 3)
    00030 #  define mpd_must_check        __attribute__ ((warn_unused_result))
    00031 #  define mpd_packed            __attribute__ ((packed))
    00032 /* these are very useful for type checking */
    00033 #  define mpd_printf            __attribute__ ((format(printf,1,2)))
    00034 #  define mpd_fprintf           __attribute__ ((format(printf,2,3)))
    00035 #  define mpd_fprintf_          __attribute__ ((format(printf,3,4)))
    00036 #  define mpd_fprintf__         __attribute__ ((format(printf,4,5)))
    00037 #  define mpd_scanf             __attribute__ ((format(scanf,1,2)))
    00038 #  define mpd_used              __attribute__ ((used))
    00039 /* #  define inline     inline __attribute__ ((always_inline)) */
    00040 #  define mpd_noinline          __attribute__ ((noinline))
    00041 #else
    00042 #  define mpd_must_check
    00043 #  define mpd_packed
    00044 #  define mpd_printf
    00045 #  define mpd_fprintf
    00046 #  define mpd_fprintf_
    00047 #  define mpd_fprintf__
    00048 #  define mpd_scanf
    00049 #  define mpd_used
    00050 /* #  define inline */
    00051 #  define mpd_noinline
    00052 #endif
    00053
    00054 #endif /* MPD_GCC_H */