1*ed775ee7SAntonio Huete Jimenez /* -*- Mode: c; tab-width: 8; indent-tabs-mode: 1; c-basic-offset: 8; -*- */ 2*ed775ee7SAntonio Huete Jimenez /* 3*ed775ee7SAntonio Huete Jimenez * Copyright (c) 1993, 1994, 1995, 1996, 1997 4*ed775ee7SAntonio Huete Jimenez * The Regents of the University of California. All rights reserved. 5*ed775ee7SAntonio Huete Jimenez * 6*ed775ee7SAntonio Huete Jimenez * Redistribution and use in source and binary forms, with or without 7*ed775ee7SAntonio Huete Jimenez * modification, are permitted provided that the following conditions 8*ed775ee7SAntonio Huete Jimenez * are met: 9*ed775ee7SAntonio Huete Jimenez * 1. Redistributions of source code must retain the above copyright 10*ed775ee7SAntonio Huete Jimenez * notice, this list of conditions and the following disclaimer. 11*ed775ee7SAntonio Huete Jimenez * 2. Redistributions in binary form must reproduce the above copyright 12*ed775ee7SAntonio Huete Jimenez * notice, this list of conditions and the following disclaimer in the 13*ed775ee7SAntonio Huete Jimenez * documentation and/or other materials provided with the distribution. 14*ed775ee7SAntonio Huete Jimenez * 3. All advertising materials mentioning features or use of this software 15*ed775ee7SAntonio Huete Jimenez * must display the following acknowledgement: 16*ed775ee7SAntonio Huete Jimenez * This product includes software developed by the Computer Systems 17*ed775ee7SAntonio Huete Jimenez * Engineering Group at Lawrence Berkeley Laboratory. 18*ed775ee7SAntonio Huete Jimenez * 4. Neither the name of the University nor of the Laboratory may be used 19*ed775ee7SAntonio Huete Jimenez * to endorse or promote products derived from this software without 20*ed775ee7SAntonio Huete Jimenez * specific prior written permission. 21*ed775ee7SAntonio Huete Jimenez * 22*ed775ee7SAntonio Huete Jimenez * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23*ed775ee7SAntonio Huete Jimenez * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24*ed775ee7SAntonio Huete Jimenez * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25*ed775ee7SAntonio Huete Jimenez * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26*ed775ee7SAntonio Huete Jimenez * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27*ed775ee7SAntonio Huete Jimenez * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28*ed775ee7SAntonio Huete Jimenez * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29*ed775ee7SAntonio Huete Jimenez * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30*ed775ee7SAntonio Huete Jimenez * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31*ed775ee7SAntonio Huete Jimenez * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32*ed775ee7SAntonio Huete Jimenez * SUCH DAMAGE. 33*ed775ee7SAntonio Huete Jimenez */ 34*ed775ee7SAntonio Huete Jimenez 35*ed775ee7SAntonio Huete Jimenez #ifndef nd_compiler_tests_h 36*ed775ee7SAntonio Huete Jimenez #define nd_compiler_tests_h 37*ed775ee7SAntonio Huete Jimenez 38*ed775ee7SAntonio Huete Jimenez /* 39*ed775ee7SAntonio Huete Jimenez * This was introduced by Clang: 40*ed775ee7SAntonio Huete Jimenez * 41*ed775ee7SAntonio Huete Jimenez * https://clang.llvm.org/docs/LanguageExtensions.html#has-attribute 42*ed775ee7SAntonio Huete Jimenez * 43*ed775ee7SAntonio Huete Jimenez * in some version (which version?); it has been picked up by GCC 5.0. 44*ed775ee7SAntonio Huete Jimenez */ 45*ed775ee7SAntonio Huete Jimenez #ifndef __has_attribute 46*ed775ee7SAntonio Huete Jimenez /* 47*ed775ee7SAntonio Huete Jimenez * It's a macro, so you can check whether it's defined to check 48*ed775ee7SAntonio Huete Jimenez * whether it's supported. 49*ed775ee7SAntonio Huete Jimenez * 50*ed775ee7SAntonio Huete Jimenez * If it's not, define it to always return 0, so that we move on to 51*ed775ee7SAntonio Huete Jimenez * the fallback checks. 52*ed775ee7SAntonio Huete Jimenez */ 53*ed775ee7SAntonio Huete Jimenez #define __has_attribute(x) 0 54*ed775ee7SAntonio Huete Jimenez #endif 55*ed775ee7SAntonio Huete Jimenez 56*ed775ee7SAntonio Huete Jimenez /* 57*ed775ee7SAntonio Huete Jimenez * Note that the C90 spec's "6.8.1 Conditional inclusion" and the 58*ed775ee7SAntonio Huete Jimenez * C99 spec's and C11 spec's "6.10.1 Conditional inclusion" say: 59*ed775ee7SAntonio Huete Jimenez * 60*ed775ee7SAntonio Huete Jimenez * Prior to evaluation, macro invocations in the list of preprocessing 61*ed775ee7SAntonio Huete Jimenez * tokens that will become the controlling constant expression are 62*ed775ee7SAntonio Huete Jimenez * replaced (except for those macro names modified by the defined unary 63*ed775ee7SAntonio Huete Jimenez * operator), just as in normal text. If the token "defined" is 64*ed775ee7SAntonio Huete Jimenez * generated as a result of this replacement process or use of the 65*ed775ee7SAntonio Huete Jimenez * "defined" unary operator does not match one of the two specified 66*ed775ee7SAntonio Huete Jimenez * forms prior to macro replacement, the behavior is undefined. 67*ed775ee7SAntonio Huete Jimenez * 68*ed775ee7SAntonio Huete Jimenez * so you shouldn't use defined() in a #define that's used in #if or 69*ed775ee7SAntonio Huete Jimenez * #elif. Some versions of Clang, for example, will warn about this. 70*ed775ee7SAntonio Huete Jimenez * 71*ed775ee7SAntonio Huete Jimenez * Instead, we check whether the pre-defined macros for particular 72*ed775ee7SAntonio Huete Jimenez * compilers are defined and, if not, define the "is this version XXX 73*ed775ee7SAntonio Huete Jimenez * or a later version of this compiler" macros as 0. 74*ed775ee7SAntonio Huete Jimenez */ 75*ed775ee7SAntonio Huete Jimenez 76*ed775ee7SAntonio Huete Jimenez /* 77*ed775ee7SAntonio Huete Jimenez * Check whether this is GCC major.minor or a later release, or some 78*ed775ee7SAntonio Huete Jimenez * compiler that claims to be "just like GCC" of that version or a 79*ed775ee7SAntonio Huete Jimenez * later release. 80*ed775ee7SAntonio Huete Jimenez */ 81*ed775ee7SAntonio Huete Jimenez 82*ed775ee7SAntonio Huete Jimenez #if ! defined(__GNUC__) 83*ed775ee7SAntonio Huete Jimenez #define ND_IS_AT_LEAST_GNUC_VERSION(major, minor) 0 84*ed775ee7SAntonio Huete Jimenez #else 85*ed775ee7SAntonio Huete Jimenez #define ND_IS_AT_LEAST_GNUC_VERSION(major, minor) \ 86*ed775ee7SAntonio Huete Jimenez (__GNUC__ > (major) || \ 87*ed775ee7SAntonio Huete Jimenez (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 88*ed775ee7SAntonio Huete Jimenez #endif 89*ed775ee7SAntonio Huete Jimenez 90*ed775ee7SAntonio Huete Jimenez /* 91*ed775ee7SAntonio Huete Jimenez * Check whether this is Sun C/SunPro C/Oracle Studio major.minor 92*ed775ee7SAntonio Huete Jimenez * or a later release. 93*ed775ee7SAntonio Huete Jimenez * 94*ed775ee7SAntonio Huete Jimenez * The version number in __SUNPRO_C is encoded in hex BCD, with the 95*ed775ee7SAntonio Huete Jimenez * uppermost hex digit being the major version number, the next 96*ed775ee7SAntonio Huete Jimenez * one or two hex digits being the minor version number, and 97*ed775ee7SAntonio Huete Jimenez * the last digit being the patch version. 98*ed775ee7SAntonio Huete Jimenez * 99*ed775ee7SAntonio Huete Jimenez * It represents the *compiler* version, not the product version; 100*ed775ee7SAntonio Huete Jimenez * see 101*ed775ee7SAntonio Huete Jimenez * 102*ed775ee7SAntonio Huete Jimenez * https://sourceforge.net/p/predef/wiki/Compilers/ 103*ed775ee7SAntonio Huete Jimenez * 104*ed775ee7SAntonio Huete Jimenez * for a partial mapping, which we assume continues for later 105*ed775ee7SAntonio Huete Jimenez * 12.x product releases. 106*ed775ee7SAntonio Huete Jimenez */ 107*ed775ee7SAntonio Huete Jimenez 108*ed775ee7SAntonio Huete Jimenez #if ! defined(__SUNPRO_C) 109*ed775ee7SAntonio Huete Jimenez #define ND_IS_AT_LEAST_SUNC_VERSION(major,minor) 0 110*ed775ee7SAntonio Huete Jimenez #else 111*ed775ee7SAntonio Huete Jimenez #define ND_SUNPRO_VERSION_TO_BCD(major, minor) \ 112*ed775ee7SAntonio Huete Jimenez (((minor) >= 10) ? \ 113*ed775ee7SAntonio Huete Jimenez (((major) << 12) | (((minor)/10) << 8) | (((minor)%10) << 4)) : \ 114*ed775ee7SAntonio Huete Jimenez (((major) << 8) | ((minor) << 4))) 115*ed775ee7SAntonio Huete Jimenez #define ND_IS_AT_LEAST_SUNC_VERSION(major,minor) \ 116*ed775ee7SAntonio Huete Jimenez (__SUNPRO_C >= ND_SUNPRO_VERSION_TO_BCD((major), (minor))) 117*ed775ee7SAntonio Huete Jimenez #endif 118*ed775ee7SAntonio Huete Jimenez 119*ed775ee7SAntonio Huete Jimenez /* 120*ed775ee7SAntonio Huete Jimenez * Check whether this is IBM XL C major.minor or a later release. 121*ed775ee7SAntonio Huete Jimenez * 122*ed775ee7SAntonio Huete Jimenez * The version number in __xlC__ has the major version in the 123*ed775ee7SAntonio Huete Jimenez * upper 8 bits and the minor version in the lower 8 bits. 124*ed775ee7SAntonio Huete Jimenez */ 125*ed775ee7SAntonio Huete Jimenez 126*ed775ee7SAntonio Huete Jimenez #if ! defined(__xlC__) 127*ed775ee7SAntonio Huete Jimenez #define ND_IS_AT_LEAST_XL_C_VERSION(major,minor) 0 128*ed775ee7SAntonio Huete Jimenez #else 129*ed775ee7SAntonio Huete Jimenez #define ND_IS_AT_LEAST_XL_C_VERSION(major, minor) \ 130*ed775ee7SAntonio Huete Jimenez (__xlC__ >= (((major) << 8) | (minor))) 131*ed775ee7SAntonio Huete Jimenez #endif 132*ed775ee7SAntonio Huete Jimenez 133*ed775ee7SAntonio Huete Jimenez /* 134*ed775ee7SAntonio Huete Jimenez * Check whether this is HP aC++/HP C major.minor or a later release. 135*ed775ee7SAntonio Huete Jimenez * 136*ed775ee7SAntonio Huete Jimenez * The version number in __HP_aCC is encoded in zero-padded decimal BCD, 137*ed775ee7SAntonio Huete Jimenez * with the "A." stripped off, the uppermost two decimal digits being 138*ed775ee7SAntonio Huete Jimenez * the major version number, the next two decimal digits being the minor 139*ed775ee7SAntonio Huete Jimenez * version number, and the last two decimal digits being the patch version. 140*ed775ee7SAntonio Huete Jimenez * (Strip off the A., remove the . between the major and minor version 141*ed775ee7SAntonio Huete Jimenez * number, and add two digits of patch.) 142*ed775ee7SAntonio Huete Jimenez */ 143*ed775ee7SAntonio Huete Jimenez 144*ed775ee7SAntonio Huete Jimenez #if ! defined(__HP_aCC) 145*ed775ee7SAntonio Huete Jimenez #define ND_IS_AT_LEAST_HP_C_VERSION(major,minor) 0 146*ed775ee7SAntonio Huete Jimenez #else 147*ed775ee7SAntonio Huete Jimenez #define ND_IS_AT_LEAST_HP_C_VERSION(major,minor) \ 148*ed775ee7SAntonio Huete Jimenez (__HP_aCC >= ((major)*10000 + (minor)*100)) 149*ed775ee7SAntonio Huete Jimenez #endif 150*ed775ee7SAntonio Huete Jimenez 151*ed775ee7SAntonio Huete Jimenez #endif /* nd_funcattrs_h */ 152