1*b5677b36Schristos /* $NetBSD: cdefs.h,v 1.1.1.1 2009/04/12 15:33:55 christos Exp $ */ 2*b5677b36Schristos 3*b5677b36Schristos /* 4*b5677b36Schristos * Copyright (c) 1991, 1993 5*b5677b36Schristos * The Regents of the University of California. All rights reserved. 6*b5677b36Schristos * 7*b5677b36Schristos * This code is derived from software contributed to Berkeley by 8*b5677b36Schristos * Berkeley Software Design, Inc. 9*b5677b36Schristos * 10*b5677b36Schristos * Redistribution and use in source and binary forms, with or without 11*b5677b36Schristos * modification, are permitted provided that the following conditions 12*b5677b36Schristos * are met: 13*b5677b36Schristos * 1. Redistributions of source code must retain the above copyright 14*b5677b36Schristos * notice, this list of conditions and the following disclaimer. 15*b5677b36Schristos * 2. Redistributions in binary form must reproduce the above copyright 16*b5677b36Schristos * notice, this list of conditions and the following disclaimer in the 17*b5677b36Schristos * documentation and/or other materials provided with the distribution. 18*b5677b36Schristos * 3. All advertising materials mentioning features or use of this software 19*b5677b36Schristos * must display the following acknowledgement: 20*b5677b36Schristos * This product includes software developed by the University of 21*b5677b36Schristos * California, Berkeley and its contributors. 22*b5677b36Schristos * 4. Neither the name of the University nor the names of its contributors 23*b5677b36Schristos * may be used to endorse or promote products derived from this software 24*b5677b36Schristos * without specific prior written permission. 25*b5677b36Schristos * 26*b5677b36Schristos * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27*b5677b36Schristos * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28*b5677b36Schristos * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29*b5677b36Schristos * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30*b5677b36Schristos * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31*b5677b36Schristos * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32*b5677b36Schristos * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33*b5677b36Schristos * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34*b5677b36Schristos * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35*b5677b36Schristos * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36*b5677b36Schristos * SUCH DAMAGE. 37*b5677b36Schristos * 38*b5677b36Schristos * @(#)cdefs.h 8.7 (Berkeley) 1/21/94 39*b5677b36Schristos */ 40*b5677b36Schristos 41*b5677b36Schristos #ifndef _CDEFS_H_ 42*b5677b36Schristos #define _CDEFS_H_ 43*b5677b36Schristos 44*b5677b36Schristos /* POSIX.2 feature test macro: enable POSIX.1 and/or more */ 45*b5677b36Schristos #if _POSIX_C_SOURCE == 1 || _POSIX_C_SOURCE == 2 46*b5677b36Schristos #define _POSIX_SOURCE 47*b5677b36Schristos #endif 48*b5677b36Schristos 49*b5677b36Schristos #if defined(_POSIX_SOURCE) || defined(__STRICT_ANSI__) 50*b5677b36Schristos #define _ANSI_SOURCE 51*b5677b36Schristos #endif 52*b5677b36Schristos 53*b5677b36Schristos #if defined(__cplusplus) 54*b5677b36Schristos #define __BEGIN_DECLS extern "C" { 55*b5677b36Schristos #define __END_DECLS }; 56*b5677b36Schristos #else 57*b5677b36Schristos #define __BEGIN_DECLS 58*b5677b36Schristos #define __END_DECLS 59*b5677b36Schristos #endif 60*b5677b36Schristos 61*b5677b36Schristos /* 62*b5677b36Schristos * The __CONCAT macro is used to concatenate parts of symbol names, e.g. 63*b5677b36Schristos * with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo. 64*b5677b36Schristos * The __CONCAT macro is a bit tricky -- make sure you don't put spaces 65*b5677b36Schristos * in between its arguments. __CONCAT can also concatenate double-quoted 66*b5677b36Schristos * strings produced by the __STRING macro, but this only works with ANSI C. 67*b5677b36Schristos */ 68*b5677b36Schristos #if defined(__STDC__) || defined(__cplusplus) 69*b5677b36Schristos #define __P(protos) protos /* full-blown ANSI C */ 70*b5677b36Schristos #define __CONCAT(x,y) x ## y 71*b5677b36Schristos #define __STRING(x) #x 72*b5677b36Schristos 73*b5677b36Schristos #define __const const /* define reserved names to standard */ 74*b5677b36Schristos #define __signed signed 75*b5677b36Schristos #define __volatile volatile 76*b5677b36Schristos #if defined(__cplusplus) 77*b5677b36Schristos #define __inline inline /* convert to C++ keyword */ 78*b5677b36Schristos #else 79*b5677b36Schristos #ifndef __GNUC__ 80*b5677b36Schristos #define __inline /* delete GCC keyword */ 81*b5677b36Schristos #endif /* !__GNUC__ */ 82*b5677b36Schristos #endif /* !__cplusplus */ 83*b5677b36Schristos 84*b5677b36Schristos #else /* !(__STDC__ || __cplusplus) */ 85*b5677b36Schristos #define __P(protos) () /* traditional C preprocessor */ 86*b5677b36Schristos #define __CONCAT(x,y) x/**/y 87*b5677b36Schristos #define __STRING(x) "x" 88*b5677b36Schristos 89*b5677b36Schristos #ifndef __GNUC__ 90*b5677b36Schristos #define __const /* delete pseudo-ANSI C keywords */ 91*b5677b36Schristos #define __inline 92*b5677b36Schristos #define __signed 93*b5677b36Schristos #define __volatile 94*b5677b36Schristos /* 95*b5677b36Schristos * In non-ANSI C environments, new programs will want ANSI-only C keywords 96*b5677b36Schristos * deleted from the program and old programs will want them left alone. 97*b5677b36Schristos * When using a compiler other than gcc, programs using the ANSI C keywords 98*b5677b36Schristos * const, inline etc. as normal identifiers should define -DNO_ANSI_KEYWORDS. 99*b5677b36Schristos * When using "gcc -traditional", we assume that this is the intent; if 100*b5677b36Schristos * __GNUC__ is defined but __STDC__ is not, we leave the new keywords alone. 101*b5677b36Schristos */ 102*b5677b36Schristos #ifndef NO_ANSI_KEYWORDS 103*b5677b36Schristos #define const /* delete ANSI C keywords */ 104*b5677b36Schristos #define inline 105*b5677b36Schristos #define signed 106*b5677b36Schristos #define volatile 107*b5677b36Schristos #endif 108*b5677b36Schristos #endif /* !__GNUC__ */ 109*b5677b36Schristos #endif /* !(__STDC__ || __cplusplus) */ 110*b5677b36Schristos 111*b5677b36Schristos /* 112*b5677b36Schristos * GCC1 and some versions of GCC2 declare dead (non-returning) and 113*b5677b36Schristos * pure (no side effects) functions using "volatile" and "const"; 114*b5677b36Schristos * unfortunately, these then cause warnings under "-ansi -pedantic". 115*b5677b36Schristos * GCC2 uses a new, peculiar __attribute__((attrs)) style. All of 116*b5677b36Schristos * these work for GNU C++ (modulo a slight glitch in the C++ grammar 117*b5677b36Schristos * in the distribution version of 2.5.5). 118*b5677b36Schristos */ 119*b5677b36Schristos #if !defined(__GNUC__) || __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) 120*b5677b36Schristos #define __attribute__(x) /* delete __attribute__ if non-gcc or gcc1 */ 121*b5677b36Schristos #if defined(__GNUC__) && !defined(__STRICT_ANSI__) 122*b5677b36Schristos #define __dead __volatile 123*b5677b36Schristos #define __pure __const 124*b5677b36Schristos #endif 125*b5677b36Schristos #endif 126*b5677b36Schristos /* The following lines were added for newer versions of GNU C 127*b5677b36Schristos * Ed Lewis - Sept 1996 lewis@tis.com 128*b5677b36Schristos */ 129*b5677b36Schristos #if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ >= 3 130*b5677b36Schristos #define __dead 131*b5677b36Schristos #define __dead2 __attribute__((noreturn)) 132*b5677b36Schristos #define __pure 133*b5677b36Schristos #define __pure2 __attribute__((const)) 134*b5677b36Schristos #endif 135*b5677b36Schristos 136*b5677b36Schristos 137*b5677b36Schristos /* Delete pseudo-keywords wherever they are not available or needed. */ 138*b5677b36Schristos #ifndef __dead 139*b5677b36Schristos #define __dead 140*b5677b36Schristos #define __pure 141*b5677b36Schristos #endif 142*b5677b36Schristos 143*b5677b36Schristos #endif /* !_CDEFS_H_ */ 144