compiler.hxx

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#pragma once
 
// needed for C++ stdlib preprocessor defines to become available
#include <iosfwd>
 
#if defined(__GLIBCXX__)
#       define COSMOS_GNU_CXXLIB
#elif defined(_LIBCPP_VERSION)
#       define COSMOS_LLVM_CXXLIB
#else
#       error "Couldn't determine the kind of C++ standard library"
#endif
 
#if defined(__clang__)
#       define COSMOS_CLANG
#elif defined(__GNUC__)
#       define COSMOS_GCC
#endif
 
#ifdef COSMOS_GCC
// if the compiler supports it then this macro causes printf function style
// sanity checks to be performed for the function this is attached to.
#define COSMOS_FORMAT_PRINTF(format_index, first_vararg_index) __attribute__((format(printf, (format_index), (first_vararg_index))))
#elif defined(COSMOS_CLANG)
#define COSMOS_FORMAT_PRINTF(format_index, first_vararg_index) __attribute__((__format__ (__printf__, (format_index), (first_vararg_index))))
#else
#define COSMOS_FORMAT_PRINTF(format_index, first_Vararg_index)
#endif
 
namespace arch {
 
#ifdef __x86_64__
#       define COMSOS_X86_64
#       define COMSOS_X86
constexpr inline bool x86_64 = true;
#else
constexpr inline bool x86_64 = false;
#endif
 
#ifdef __i386__
#       define COSMOS_I386
#       define COSMOS_X86
constexpr inline bool i386 = true;
#else
constexpr inline bool i386 = false;
#endif
 
constexpr inline bool x86 = x86_64 || i386;
} // end ns