src/gcc.h

   1 /*
   2  * Copyright (C) 2003-2010 The Music Player Daemon Project
   3  * http://www.musicpd.org
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  */
  19
  20 #ifndef MPD_GCC_H
  21 #define MPD_GCC_H
  22
  23 /* this allows us to take advantage of special gcc features while still
  24  * allowing other compilers to compile:
  25  *
  26  * example taken from: http://rlove.org/log/2005102601
  27  */
  28
  29 #if defined(__GNUC__) && (__GNUC__ >= 3)
  30 #  define mpd_must_check        __attribute__ ((warn_unused_result))
  31 #  define mpd_packed            __attribute__ ((packed))
  32 /* these are very useful for type checking */
  33 #  define mpd_printf            __attribute__ ((format(printf,1,2)))
  34 #  define mpd_fprintf           __attribute__ ((format(printf,2,3)))
  35 #  define mpd_fprintf_          __attribute__ ((format(printf,3,4)))
  36 #  define mpd_fprintf__         __attribute__ ((format(printf,4,5)))
  37 #  define mpd_scanf             __attribute__ ((format(scanf,1,2)))
  38 #  define mpd_used              __attribute__ ((used))
  39 /* #  define inline     inline __attribute__ ((always_inline)) */
  40 #  define mpd_noinline          __attribute__ ((noinline))
  41 #else
  42 #  define mpd_must_check
  43 #  define mpd_packed
  44 #  define mpd_printf
  45 #  define mpd_fprintf
  46 #  define mpd_fprintf_
  47 #  define mpd_fprintf__
  48 #  define mpd_scanf
  49 #  define mpd_used
  50 /* #  define inline */
  51 #  define mpd_noinline
  52 #endif
  53
  54 #endif /* MPD_GCC_H */