From 78dca8153f802f271b4f2aeca33d967a075e485e Mon Sep 17 00:00:00 2001 From: Tavian Barnes Date: Wed, 16 Nov 2011 17:01:02 -0500 Subject: Add a dmnsn_unreachable() macro. Also rename inline.h to compiler.h. --- libdimension/dimension/compiler.h | 52 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 libdimension/dimension/compiler.h (limited to 'libdimension/dimension/compiler.h') diff --git a/libdimension/dimension/compiler.h b/libdimension/dimension/compiler.h new file mode 100644 index 0000000..5ce8ce8 --- /dev/null +++ b/libdimension/dimension/compiler.h @@ -0,0 +1,52 @@ +/************************************************************************* + * Copyright (C) 2009-2010 Tavian Barnes * + * * + * This file is part of The Dimension Library. * + * * + * The Dimension Library is free software; you can redistribute it and/ * + * or modify it under the terms of the GNU Lesser General Public License * + * as published by the Free Software Foundation; either version 3 of the * + * License, or (at your option) any later version. * + * * + * The Dimension Library is distributed in the hope that it will be * + * useful, but WITHOUT ANY WARRANTY; without even the implied warranty * + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * + * Lesser General Public License for more details. * + * * + * You should have received a copy of the GNU Lesser General Public * + * License along with this program. If not, see * + * . * + *************************************************************************/ + +/** + * @file + * Compiler abstractions. + */ + +/** + * @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 + /* C++ inline semantics */ + #define DMNSN_INLINE inline + #elif __STDC_VERSION__ >= 199901L + /* C99 inline semantics */ + #define DMNSN_INLINE inline + #elif defined(__GNUC__) + /* GCC inline semantics */ + #define DMNSN_INLINE __extension__ extern __inline__ + #else + /* Unknown C - mark functions static and hope the compiler is smart enough + to inline them */ + #define DMNSN_INLINE static + #endif +#endif + +#ifdef __GNUC__ + #define DMNSN_UNREACHABLE() __builtin_unreachable(); +#else + #define DMNSN_UNREACHABLE() +#endif -- cgit v1.2.3