diff options
Diffstat (limited to 'ws_attributes.h')
-rw-r--r-- | ws_attributes.h | 115 |
1 files changed, 2 insertions, 113 deletions
diff --git a/ws_attributes.h b/ws_attributes.h index fdac6a0d04..0f0fd2e21d 100644 --- a/ws_attributes.h +++ b/ws_attributes.h @@ -22,124 +22,13 @@ #ifndef __WS_ATTRIBUTES_H__ #define __WS_ATTRIBUTES_H__ +#include "ws_compiler_tests.h" + #ifdef __cplusplus extern "C" { #endif /* __cplusplus */ /* - * This was introduced by Clang: - * - * http://clang.llvm.org/docs/LanguageExtensions.html#has-attribute - * - * in some version (which version?); it has been picked up by GCC 5.0. - */ -#ifndef __has_attribute - /* - * It's a macro, so you can check whether it's defined to check - * whether it's supported. - * - * If it's not, define it to always return 0, so that we move on to - * the fallback checks. - */ - #define __has_attribute(x) 0 -#endif - -/* - * Note that the C90 spec's "6.8.1 Conditional inclusion" and the - * C99 spec's and C11 spec's "6.10.1 Conditional inclusion" say: - * - * Prior to evaluation, macro invocations in the list of preprocessing - * tokens that will become the controlling constant expression are - * replaced (except for those macro names modified by the defined unary - * operator), just as in normal text. If the token "defined" is - * generated as a result of this replacement process or use of the - * "defined" unary operator does not match one of the two specified - * forms prior to macro replacement, the behavior is undefined. - * - * so you shouldn't use defined() in a #define that's used in #if or - * #elif. Some versions of Clang, for example, will warn about this. - * - * Instead, we check whether the pre-defined macros for particular - * compilers are defined and, if not, define the "is this version XXX - * or a later version of this compiler" macros as 0. - */ - -/* - * Check whether this is GCC major.minor or a later release, or some - * compiler that claims to be "just like GCC" of that version or a - * later release. - */ - -#if !defined(__GNUC__) - #define WS_IS_AT_LEAST_GNUC_VERSION(major, minor) 0 -#else - #define WS_IS_AT_LEAST_GNUC_VERSION(major, minor) \ - (__GNUC__ > (major) || \ - (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) -#endif - -/* - * Check whether this is Sun C/SunPro C/Oracle Studio major.minor - * or a later release. - * - * The version number in __SUNPRO_C is encoded in hex BCD, with the - * uppermost hex digit being the major version number, the next - * one or two hex digits being the minor version number, and - * the last digit being the patch version. - * - * It represents the *compiler* version, not the product version; - * see - * - * https://sourceforge.net/p/predef/wiki/Compilers/ - * - * for a partial mapping, which we assume continues for later - * 12.x product releases. - */ - -#if !defined(__SUNPRO_C) - #define WS_IS_AT_LEAST_SUNC_VERSION(major, minor) 0 -#else - #define WS_SUNPRO_VERSION_TO_BCD(major, minor) \ - (((minor) >= 10) ? \ - (((major) << 12) | (((minor)/10) << 8) | (((minor)%10) << 4)) : \ - (((major) << 8) | ((minor) << 4))) - #define WS_IS_AT_LEAST_SUNC_VERSION(major, minor) \ - (__SUNPRO_C >= WS_SUNPRO_VERSION_TO_BCD((major), (minor))) -#endif - -/* - * Check whether this is IBM XL C major.minor or a later release. - * - * The version number in __xlC__ has the major version in the - * upper 8 bits and the minor version in the lower 8 bits. - */ - -#if !defined(__xlC__) - #define WS_IS_AT_LEAST_XL_C_VERSION(major, minor) 0 -#else - #define WS_IS_AT_LEAST_XL_C_VERSION(major, minor) \ - (__xlC__ >= (((major) << 8) | (minor))) -#endif - -/* - * Check whether this is HP aC++/HP C major.minor or a later release. - * - * The version number in __HP_aCC is encoded in zero-padded decimal BCD, - * with the "A." stripped off, the uppermost two decimal digits being - * the major version number, the next two decimal digits being the minor - * version number, and the last two decimal digits being the patch version. - * (Strip off the A., remove the . between the major and minor version - * number, and add two digits of patch.) - */ - -#if !defined(__HP_aCC) - #define WS_IS_AT_LEAST_HP_C_VERSION(major, minor) 0 -#else - #define WS_IS_AT_LEAST_HP_C_VERSION(major, minor) \ - (__HP_aCC >= ((major)*10000 + (minor)*100)) -#endif - -/* * If we're running GCC or clang define _U_ to be "__attribute__((unused))" * so we can use _U_ to flag unused function parameters and not get warnings * about them. Otherwise, define _U_ to be an empty string so that _U_ used |