96 lines
3.6 KiB
C
96 lines
3.6 KiB
C
/*
|
|
* Copyright (c) 1991 The Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* from: @(#)cdefs.h 7.6 (Berkeley) 5/4/91
|
|
* cdefs.h,v 1.4 1993/05/26 14:52:56 cgd Exp
|
|
*/
|
|
|
|
#ifndef _SYS_CDEFS_H_
|
|
#define _SYS_CDEFS_H_
|
|
|
|
#if defined(__cplusplus)
|
|
#define __BEGIN_DECLS extern "C" {
|
|
#define __END_DECLS };
|
|
#else
|
|
#define __BEGIN_DECLS
|
|
#define __END_DECLS
|
|
#endif
|
|
|
|
/*
|
|
* The __CONCAT macro is used to concatenate parts of symbol names, e.g.
|
|
* with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
|
|
* The __CONCAT macro is a bit tricky -- make sure you don't put spaces
|
|
* in between its arguments. __CONCAT can also concatenate double-quoted
|
|
* strings produced by the __STRING macro, but this only works with ANSI C.
|
|
*/
|
|
#if defined(__STDC__) || defined(__cplusplus)
|
|
#define __P(protos) protos /* full-blown ANSI C */
|
|
#define __CONCAT(x,y) x ## y
|
|
#define __STRING(x) #x
|
|
|
|
#else /* !(__STDC__ || __cplusplus) */
|
|
#define __P(protos) () /* traditional C preprocessor */
|
|
#define __CONCAT(x,y) x/**/y
|
|
#define __STRING(x) "x"
|
|
|
|
#ifdef __GNUC__
|
|
#define const __const /* GCC: ANSI C with -traditional */
|
|
#define inline __inline
|
|
#define signed __signed
|
|
#define volatile __volatile
|
|
|
|
#else /* !__GNUC__ */
|
|
#define const /* delete ANSI C keywords */
|
|
#define inline
|
|
#define signed
|
|
#define volatile
|
|
#endif /* !__GNUC__ */
|
|
#endif /* !(__STDC__ || __cplusplus) */
|
|
|
|
/*
|
|
* GCC has extensions for declaring functions as `pure' (always returns
|
|
* the same value given the same inputs, i.e., has no external state and
|
|
* no side effects) and `dead' (nonreturning). These mainly affect
|
|
* optimization and warnings. Unfortunately, GCC complains if these are
|
|
* used under strict ANSI mode (`gcc -ansi -pedantic'), hence we need to
|
|
* define them only if compiling without this.
|
|
*/
|
|
#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
|
|
#define __dead __volatile
|
|
#define __pure __const
|
|
#else
|
|
#define __dead
|
|
#define __pure
|
|
#endif
|
|
|
|
#endif /* !_SYS_CDEFS_H_ */
|