xref: /onnv-gate/usr/src/lib/libresolv2/include/sys/cdefs.h (revision 11038:74b12212b8a2)
10Sstevel@tonic-gate /*
20Sstevel@tonic-gate  * ++Copyright++ 1991, 1993
30Sstevel@tonic-gate  * -
40Sstevel@tonic-gate  * Copyright (c) 1991, 1993
50Sstevel@tonic-gate  *    The Regents of the University of California.  All rights reserved.
60Sstevel@tonic-gate  *
70Sstevel@tonic-gate  * Redistribution and use in source and binary forms, with or without
80Sstevel@tonic-gate  * modification, are permitted provided that the following conditions
90Sstevel@tonic-gate  * are met:
100Sstevel@tonic-gate  * 1. Redistributions of source code must retain the above copyright
110Sstevel@tonic-gate  *    notice, this list of conditions and the following disclaimer.
120Sstevel@tonic-gate  * 2. Redistributions in binary form must reproduce the above copyright
130Sstevel@tonic-gate  *    notice, this list of conditions and the following disclaimer in the
140Sstevel@tonic-gate  *    documentation and/or other materials provided with the distribution.
150Sstevel@tonic-gate  * 3. All advertising materials mentioning features or use of this software
160Sstevel@tonic-gate  *    must display the following acknowledgement:
170Sstevel@tonic-gate  * 	This product includes software developed by the University of
180Sstevel@tonic-gate  * 	California, Berkeley and its contributors.
190Sstevel@tonic-gate  * 4. Neither the name of the University nor the names of its contributors
200Sstevel@tonic-gate  *    may be used to endorse or promote products derived from this software
210Sstevel@tonic-gate  *    without specific prior written permission.
220Sstevel@tonic-gate  *
230Sstevel@tonic-gate  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
240Sstevel@tonic-gate  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
250Sstevel@tonic-gate  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
260Sstevel@tonic-gate  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
270Sstevel@tonic-gate  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
280Sstevel@tonic-gate  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
290Sstevel@tonic-gate  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
300Sstevel@tonic-gate  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
310Sstevel@tonic-gate  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
320Sstevel@tonic-gate  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
330Sstevel@tonic-gate  * SUCH DAMAGE.
340Sstevel@tonic-gate  * -
350Sstevel@tonic-gate  * Portions Copyright (c) 1993 by Digital Equipment Corporation.
360Sstevel@tonic-gate  *
370Sstevel@tonic-gate  * Permission to use, copy, modify, and distribute this software for any
380Sstevel@tonic-gate  * purpose with or without fee is hereby granted, provided that the above
390Sstevel@tonic-gate  * copyright notice and this permission notice appear in all copies, and that
400Sstevel@tonic-gate  * the name of Digital Equipment Corporation not be used in advertising or
410Sstevel@tonic-gate  * publicity pertaining to distribution of the document or software without
420Sstevel@tonic-gate  * specific, written prior permission.
430Sstevel@tonic-gate  *
440Sstevel@tonic-gate  * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
450Sstevel@tonic-gate  * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
460Sstevel@tonic-gate  * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
470Sstevel@tonic-gate  * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
480Sstevel@tonic-gate  * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
490Sstevel@tonic-gate  * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
500Sstevel@tonic-gate  * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
510Sstevel@tonic-gate  * SOFTWARE.
520Sstevel@tonic-gate  * -
530Sstevel@tonic-gate  * --Copyright--
540Sstevel@tonic-gate  */
550Sstevel@tonic-gate 
560Sstevel@tonic-gate /*
570Sstevel@tonic-gate  *	@(#)cdefs.h	8.1 (Berkeley) 6/2/93
58*11038SRao.Shoaib@Sun.COM  *	$Id: cdefs.h,v 1.2 2004/07/19 05:54:07 marka Exp $
590Sstevel@tonic-gate  */
600Sstevel@tonic-gate 
610Sstevel@tonic-gate #ifndef	_CDEFS_H_
620Sstevel@tonic-gate #define	_CDEFS_H_
630Sstevel@tonic-gate 
640Sstevel@tonic-gate #if defined(__cplusplus)
650Sstevel@tonic-gate #define	__BEGIN_DECLS	extern "C" {
660Sstevel@tonic-gate #define	__END_DECLS	};
670Sstevel@tonic-gate #else
680Sstevel@tonic-gate #define	__BEGIN_DECLS
690Sstevel@tonic-gate #define	__END_DECLS
700Sstevel@tonic-gate #endif
710Sstevel@tonic-gate 
720Sstevel@tonic-gate /*
730Sstevel@tonic-gate  * The __CONCAT macro is used to concatenate parts of symbol names, e.g.
740Sstevel@tonic-gate  * with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
750Sstevel@tonic-gate  * The __CONCAT macro is a bit tricky -- make sure you don't put spaces
760Sstevel@tonic-gate  * in between its arguments.  __CONCAT can also concatenate double-quoted
770Sstevel@tonic-gate  * strings produced by the __STRING macro, but this only works with ANSI C.
780Sstevel@tonic-gate  */
790Sstevel@tonic-gate #if defined(__STDC__) || defined(__cplusplus)
800Sstevel@tonic-gate #define	__P(protos)	protos		/* full-blown ANSI C */
810Sstevel@tonic-gate #define	__CONCAT(x,y)	x ## y
820Sstevel@tonic-gate #define	__STRING(x)	#x
830Sstevel@tonic-gate 
840Sstevel@tonic-gate #define	__const		const		/* define reserved names to standard */
850Sstevel@tonic-gate #define	__signed	signed
860Sstevel@tonic-gate #define	__volatile	volatile
870Sstevel@tonic-gate #if defined(__cplusplus)
880Sstevel@tonic-gate #define	__inline	inline		/* convert to C++ keyword */
890Sstevel@tonic-gate #else
900Sstevel@tonic-gate #ifndef __GNUC__
910Sstevel@tonic-gate #define	__inline			/* delete GCC keyword */
920Sstevel@tonic-gate #endif /* !__GNUC__ */
930Sstevel@tonic-gate #endif /* !__cplusplus */
940Sstevel@tonic-gate 
950Sstevel@tonic-gate #else	/* !(__STDC__ || __cplusplus) */
960Sstevel@tonic-gate #define	__P(protos)	()		/* traditional C preprocessor */
970Sstevel@tonic-gate #define	__CONCAT(x,y)	x/**/y
980Sstevel@tonic-gate #define	__STRING(x)	"x"
990Sstevel@tonic-gate 
1000Sstevel@tonic-gate #ifndef __GNUC__
1010Sstevel@tonic-gate #define	__const				/* delete pseudo-ANSI C keywords */
1020Sstevel@tonic-gate #define	__inline
1030Sstevel@tonic-gate #define	__signed
1040Sstevel@tonic-gate #define	__volatile
1050Sstevel@tonic-gate /*
1060Sstevel@tonic-gate  * In non-ANSI C environments, new programs will want ANSI-only C keywords
1070Sstevel@tonic-gate  * deleted from the program and old programs will want them left alone.
1080Sstevel@tonic-gate  * When using a compiler other than gcc, programs using the ANSI C keywords
1090Sstevel@tonic-gate  * const, inline etc. as normal identifiers should define -DNO_ANSI_KEYWORDS.
1100Sstevel@tonic-gate  * When using "gcc -traditional", we assume that this is the intent; if
1110Sstevel@tonic-gate  * __GNUC__ is defined but __STDC__ is not, we leave the new keywords alone.
1120Sstevel@tonic-gate  */
1130Sstevel@tonic-gate #ifndef	NO_ANSI_KEYWORDS
1140Sstevel@tonic-gate #define	const				/* delete ANSI C keywords */
1150Sstevel@tonic-gate #define	inline
1160Sstevel@tonic-gate #define	signed
1170Sstevel@tonic-gate #define	volatile
1180Sstevel@tonic-gate #endif
1190Sstevel@tonic-gate #endif	/* !__GNUC__ */
1200Sstevel@tonic-gate #endif	/* !(__STDC__ || __cplusplus) */
1210Sstevel@tonic-gate 
1220Sstevel@tonic-gate /*
1230Sstevel@tonic-gate  * GCC1 and some versions of GCC2 declare dead (non-returning) and
1240Sstevel@tonic-gate  * pure (no side effects) functions using "volatile" and "const";
1250Sstevel@tonic-gate  * unfortunately, these then cause warnings under "-ansi -pedantic".
1260Sstevel@tonic-gate  * GCC2 uses a new, peculiar __attribute__((attrs)) style.  All of
1270Sstevel@tonic-gate  * these work for GNU C++ (modulo a slight glitch in the C++ grammar
1280Sstevel@tonic-gate  * in the distribution version of 2.5.5).
1290Sstevel@tonic-gate  */
130*11038SRao.Shoaib@Sun.COM #if !defined(__GNUC__) || __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5)
1310Sstevel@tonic-gate #define	__attribute__(x)	/* delete __attribute__ if non-gcc or gcc1 */
1320Sstevel@tonic-gate #if defined(__GNUC__) && !defined(__STRICT_ANSI__)
1330Sstevel@tonic-gate #define	__dead		__volatile
1340Sstevel@tonic-gate #define	__pure		__const
1350Sstevel@tonic-gate #endif
1360Sstevel@tonic-gate #endif
1370Sstevel@tonic-gate 
1380Sstevel@tonic-gate /* Delete pseudo-keywords wherever they are not available or needed. */
1390Sstevel@tonic-gate #ifndef __dead
1400Sstevel@tonic-gate #define	__dead
1410Sstevel@tonic-gate #define	__pure
1420Sstevel@tonic-gate #endif
1430Sstevel@tonic-gate 
1440Sstevel@tonic-gate #endif /* !_CDEFS_H_ */
145