[unix-history] / lib / libc / db / PORT / include / cdefs.h

/*
 * Copyright (c) 1991, 1993
 *	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.
 *
 *	@(#)cdefs.h	8.1 (Berkeley) 6/2/93
 */

#ifndef	_CDEFS_H_
#define	_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 /* !_CDEFS_H_ */
Commit	Line	Data
fdeaf90b RG	1	/*
	2	* Copyright (c) 1991, 1993
	3	* The Regents of the University of California. All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	* 3. All advertising materials mentioning features or use of this software
	14	* must display the following acknowledgement:
	15	* This product includes software developed by the University of
	16	* California, Berkeley and its contributors.
	17	* 4. Neither the name of the University nor the names of its contributors
	18	* may be used to endorse or promote products derived from this software
	19	* without specific prior written permission.
	20	*
	21	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	22	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	23	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	24	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	25	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	26	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	27	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	28	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	29	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	30	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	31	* SUCH DAMAGE.
	32	*
	33	* @(#)cdefs.h 8.1 (Berkeley) 6/2/93
	34	*/
	35
	36	#ifndef _CDEFS_H_
	37	#define _CDEFS_H_
	38
	39	#if defined(__cplusplus)
	40	#define __BEGIN_DECLS extern "C" {
	41	#define __END_DECLS };
	42	#else
	43	#define __BEGIN_DECLS
	44	#define __END_DECLS
	45	#endif
	46
	47	/*
	48	* The __CONCAT macro is used to concatenate parts of symbol names, e.g.
	49	* with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
	50	* The __CONCAT macro is a bit tricky -- make sure you don't put spaces
	51	* in between its arguments. __CONCAT can also concatenate double-quoted
	52	* strings produced by the __STRING macro, but this only works with ANSI C.
	53	*/
	54	#if defined(__STDC__) \|\| defined(__cplusplus)
	55	#define __P(protos) protos /* full-blown ANSI C */
	56	#define __CONCAT(x,y) x ## y
	57	#define __STRING(x) #x
	58
	59	#else /* !(__STDC__ \|\| __cplusplus) */
	60	#define __P(protos) () /* traditional C preprocessor */
	61	#define __CONCAT(x,y) x/**/y
	62	#define __STRING(x) "x"
	63
	64	#ifdef __GNUC__
65	#define const __const /* GCC: ANSI C with -traditional */
66	#define inline __inline
67	#define signed __signed
68	#define volatile __volatile
69
70	#else /* !__GNUC__ */
71	#define const /* delete ANSI C keywords */
72	#define inline
73	#define signed
74	#define volatile
75	#endif /* !__GNUC__ */
76	#endif /* !(__STDC__ \|\| __cplusplus) */
77
78	/*
79	* GCC has extensions for declaring functions as `pure' (always returns
80	* the same value given the same inputs, i.e., has no external state and
81	* no side effects) and `dead' (nonreturning). These mainly affect
82	* optimization and warnings. Unfortunately, GCC complains if these are
83	* used under strict ANSI mode (`gcc -ansi -pedantic'), hence we need to
84	* define them only if compiling without this.
85	*/
86	#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
87	#define __dead __volatile
88	#define __pure __const
89	#else
90	#define __dead
91	#define __pure
92	#endif
93
94	#endif /* !_CDEFS_H_ */