47 lines
1.6 KiB
C
47 lines
1.6 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
*
|
|
* Copyright © 2010 Rafaël Carré
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef _GCC_EXTENSIONS_H_
|
|
#define _GCC_EXTENSIONS_H_
|
|
|
|
/* Support for some GCC extensions */
|
|
|
|
/* Compile time check of format for printf/scanf like functions */
|
|
#ifdef __GNUC__
|
|
#define ATTRIBUTE_PRINTF(fmt, arg1) __attribute__( ( format( printf, fmt, arg1 ) ) )
|
|
#define ATTRIBUTE_SCANF(fmt, arg1) __attribute__( ( format( scanf, fmt, arg1 ) ) )
|
|
#else
|
|
#define ATTRIBUTE_PRINTF(fmt, arg1)
|
|
#define ATTRIBUTE_SCANF(fmt, arg1)
|
|
#endif
|
|
|
|
|
|
/* Use to give gcc hints on which branch is most likely taken */
|
|
#if defined(__GNUC__) && __GNUC__ >= 3
|
|
#define LIKELY(x) __builtin_expect(!!(x), 1)
|
|
#define UNLIKELY(x) __builtin_expect(!!(x), 0)
|
|
#else
|
|
#define LIKELY(x) (x)
|
|
#define UNLIKELY(x) (x)
|
|
#endif
|
|
|
|
|
|
#endif /* _GCC_EXTENSIONS_H_ */
|