1 /* 2 * Portions Copyright 1998 Sun Microsystems, Inc. All rights reserved. 3 * Use is subject to license terms. 4 */ 5 6 #pragma ident "%Z%%M% %I% %E% SMI" 7 8 /* 9 * Copyright (c) 1991, 1993 10 * The Regents of the University of California. All rights reserved. 11 * 12 * This code is derived from software contributed to Berkeley by 13 * Berkeley Software Design, Inc. 14 * 15 * Redistribution and use in source and binary forms, with or without 16 * modification, are permitted provided that the following conditions 17 * are met: 18 * 1. Redistributions of source code must retain the above copyright 19 * notice, this list of conditions and the following disclaimer. 20 * 2. Redistributions in binary form must reproduce the above copyright 21 * notice, this list of conditions and the following disclaimer in the 22 * documentation and/or other materials provided with the distribution. 23 * 3. All advertising materials mentioning features or use of this software 24 * must display the following acknowledgement: 25 * This product includes software developed by the University of 26 * California, Berkeley and its contributors. 27 * 4. Neither the name of the University nor the names of its contributors 28 * may be used to endorse or promote products derived from this software 29 * without specific prior written permission. 30 * 31 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 32 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 33 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 34 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 35 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 39 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 40 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 41 * SUCH DAMAGE. 42 * 43 * @(#)cdefs.h 8.7 (Berkeley) 1/21/94 44 */ 45 46 #ifndef _CDEFS_H_ 47 #define _CDEFS_H_ 48 49 #if defined(__cplusplus) 50 #define __BEGIN_DECLS extern "C" { 51 #define __END_DECLS }; 52 #else 53 #define __BEGIN_DECLS 54 #define __END_DECLS 55 #endif 56 57 /* 58 * The __CONCAT macro is used to concatenate parts of symbol names, e.g. 59 * with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo. 60 * The __CONCAT macro is a bit tricky -- make sure you don't put spaces 61 * in between its arguments. __CONCAT can also concatenate double-quoted 62 * strings produced by the __STRING macro, but this only works with ANSI C. 63 */ 64 #if defined(__STDC__) || defined(__cplusplus) 65 #define __P(protos) protos /* full-blown ANSI C */ 66 #define __CONCAT(x,y) x ## y 67 #define __STRING(x) #x 68 69 #define __const const /* define reserved names to standard */ 70 #define __signed signed 71 #define __volatile volatile 72 #if defined(__cplusplus) 73 #define __inline inline /* convert to C++ keyword */ 74 #else 75 #ifndef __GNUC__ 76 #define __inline /* delete GCC keyword */ 77 #endif /* !__GNUC__ */ 78 #endif /* !__cplusplus */ 79 80 #else /* !(__STDC__ || __cplusplus) */ 81 #define __P(protos) () /* traditional C preprocessor */ 82 #define __CONCAT(x,y) x/**/y 83 #define __STRING(x) "x" 84 85 #ifndef __GNUC__ 86 #define __const /* delete pseudo-ANSI C keywords */ 87 #define __inline 88 #define __signed 89 #define __volatile 90 /* 91 * In non-ANSI C environments, new programs will want ANSI-only C keywords 92 * deleted from the program and old programs will want them left alone. 93 * When using a compiler other than gcc, programs using the ANSI C keywords 94 * const, inline etc. as normal identifiers should define -DNO_ANSI_KEYWORDS. 95 * When using "gcc -traditional", we assume that this is the intent; if 96 * __GNUC__ is defined but __STDC__ is not, we leave the new keywords alone. 97 */ 98 #ifndef NO_ANSI_KEYWORDS 99 #define const /* delete ANSI C keywords */ 100 #define inline 101 #define signed 102 #define volatile 103 #endif 104 #endif /* !__GNUC__ */ 105 #endif /* !(__STDC__ || __cplusplus) */ 106 107 /* 108 * GCC1 and some versions of GCC2 declare dead (non-returning) and 109 * pure (no side effects) functions using "volatile" and "const"; 110 * unfortunately, these then cause warnings under "-ansi -pedantic". 111 * GCC2 uses a new, peculiar __attribute__((attrs)) style. All of 112 * these work for GNU C++ (modulo a slight glitch in the C++ grammar 113 * in the distribution version of 2.5.5). 114 */ 115 #if !defined(__GNUC__) || __GNUC__ < 2 || __GNUC_MINOR__ < 5 116 #define __attribute__(x) /* delete __attribute__ if non-gcc or gcc1 */ 117 #if defined(__GNUC__) && !defined(__STRICT_ANSI__) 118 #define __dead __volatile 119 #define __pure __const 120 #endif 121 #endif 122 123 /* Delete pseudo-keywords wherever they are not available or needed. */ 124 #ifndef __dead 125 #define __dead 126 #define __pure 127 #endif 128 129 #endif /* !_CDEFS_H_ */ 130