code.delx.au - pulseaudio/blob - src/pulse/cdecl.h

   1 #ifndef foopulsecdeclhfoo
   2 #define foopulsecdeclhfoo
   3
   4 /* $Id$ */
   5
   6 /***
   7   This file is part of PulseAudio.
   8
   9   Copyright 2004-2006 Lennart Poettering
  10
  11   PulseAudio is free software; you can redistribute it and/or modify
  12   it under the terms of the GNU Lesser General Public License as published
  13   by the Free Software Foundation; either version 2 of the License,
  14   or (at your option) any later version.
  15
  16   PulseAudio is distributed in the hope that it will be useful, but
  17   WITHOUT ANY WARRANTY; without even the implied warranty of
  18   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  19   General Public License for more details.
  20
  21   You should have received a copy of the GNU Lesser General Public License
  22   along with PulseAudio; if not, write to the Free Software
  23   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  24   USA.
  25 ***/
  26
  27 /** \file
  28  * C++ compatibility support */
  29
  30 #ifdef __cplusplus
  31 /** If using C++ this macro enables C mode, otherwise does nothing */
  32 #define PA_C_DECL_BEGIN extern "C" {
  33 /** If using C++ this macros switches back to C++ mode, otherwise does nothing */
  34 #define PA_C_DECL_END }
  35
  36 #else
  37 /** If using C++ this macro enables C mode, otherwise does nothing */
  38 #define PA_C_DECL_BEGIN
  39 /** If using C++ this macros switches back to C++ mode, otherwise does nothing */
  40 #define PA_C_DECL_END
  41
  42 #endif
  43
  44 #ifndef PA_GCC_PURE
  45 #ifdef __GNUCC__
  46 #define PA_GCC_PURE __attribute__ ((pure))
  47 #else
  48 /** This function's return value depends only the arguments list and global state **/
  49 #define PA_GCC_PURE
  50 #endif
  51 #endif
  52
  53 #ifndef PA_GCC_CONST
  54 #ifdef __GNUCC__
  55 #define PA_GCC_CONST __attribute__ ((pure))
  56 #else
  57 /** This function's return value depends only the arguments list (stricter version of PA_GCC_CONST) **/
  58 #define PA_GCC_CONST
  59 #endif
  60 #endif
  61
  62 #endif