diff options
Diffstat (limited to 'libdimension/dimension/compiler.h')
| -rw-r--r-- | libdimension/dimension/compiler.h | 86 |
1 files changed, 73 insertions, 13 deletions
diff --git a/libdimension/dimension/compiler.h b/libdimension/dimension/compiler.h index 3d392b5..af3f4c8 100644 --- a/libdimension/dimension/compiler.h +++ b/libdimension/dimension/compiler.h @@ -1,5 +1,5 @@ /************************************************************************* - * Copyright (C) 2009-2010 Tavian Barnes <tavianator@tavianator.com> * + * Copyright (C) 2009-2014 Tavian Barnes <tavianator@tavianator.com> * * * * This file is part of The Dimension Library. * * * @@ -24,18 +24,70 @@ */ /** + * @internal + * @def DMNSN_C_VERSION + * The C version according to \p __STDC_VERSION__ if available, otherwise 0. + */ +#ifdef __STDC_VERSION__ + #define DMNSN_C_VERSION __STDC_VERSION__ +#else + #define DMNSN_C_VERSION 0L +#endif + +/** + * @internal + * @def DMNSN_CXX_VERSION + * The C++ version according to \p __cplusplus if available, otherwise 0. + */ +#ifdef __cplusplus + #define DMNSN_CXX_VERSION __cplusplus +#else + #define DMNSN_CXX_VERSION 0L +#endif + +/** + * @internal + * Whether we're being compiled as C++. + */ +#define DMNSN_CXX (DMNSN_CXX_VERSION > 0) + +/** + * @internal + * Whether C++11 features are supported. + */ +#define DMNSN_CXX11 (DMNSN_CXX_VERSION >= 201103L) + +/** + * @internal + * Whether C99 features are supported. + */ +#define DMNSN_C99 (DMNSN_C_VERSION >= 199901L || DMNSN_CXX11) + +/** + * @internal + * Whether C11 features are supported. + */ +#define DMNSN_C11 (DMNSN_C_VERSION >= 201112L) + +/** + * @internal + * Whether GNU C features are supported. + */ +#define DMNSN_GNUC defined(__GNUC__) + +/** * @def DMNSN_INLINE * A portable inline specifier. Expands to the correct method of declaring * inline functions for the version of C you are using. */ #ifndef DMNSN_INLINE - #ifdef __cplusplus + #if DMNSN_CXX /* C++ inline semantics */ #define DMNSN_INLINE inline - #elif __STDC_VERSION__ >= 199901L + #elif DMNSN_C99 /* C99 inline semantics */ #define DMNSN_INLINE inline - #elif defined(__GNUC__) + #elif DMNSN_GNUC /* GCC inline semantics */ #define DMNSN_INLINE __extension__ extern __inline__ #else @@ -46,13 +98,27 @@ #endif /** + * @def DMNSN_NORETURN + * A portable noreturn attribute. + */ +#if DMNSN_CXX11 + #define DMNSN_NORETURN [[noreturn]] void +#elif DMNSN_C11 + #define DMNSN_NORETURN _Noreturn void +#elif DMNSN_GNUC + #define DMNSN_NORETURN __attribute__((noreturn)) void +#else + #define DMNSN_NORETURN void +#endif + +/** * @internal * @def DMNSN_FUNC * @brief Expands to the name of the current function */ -#ifdef __GNUC__ +#if DMNSN_GNUC #define DMNSN_FUNC __PRETTY_FUNCTION__ -#elif __STDC_VERSION__ >= 199901L +#elif DMNSN_C99 #define DMNSN_FUNC __func__ #else #define DMNSN_FUNC "<unknown function>" @@ -62,14 +128,8 @@ * @internal * An unreachable statement. */ -#ifdef __GNUC__ +#if DMNSN_GNUC #define DMNSN_UNREACHABLE() __builtin_unreachable() #else #define DMNSN_UNREACHABLE() ((void)0) #endif - -/** - * @internal - * Whether C99 features are supported. - */ -#define DMNSN_C99 (__STDC_VERSION__ >= 199901L || __cplusplus >= 201103L) |