Files
metadesk/code/base/macros.h
T
2025-02-01 21:36:44 -05:00

117 lines
2.5 KiB
C

#if MD_INTELLISENSE_DIRECTIVES
#pragma once
#include "platform.h"
#endif
#ifndef local_persist
#define local_persist static
#endif
#if MD_COMPILER_MSVC
# define thread_static __declspec(thread)
#elif MD_COMPILER_CLANG || MD_COMPILER_GCC
# define thread_static __thread
#endif
////////////////////////////////
//~ rjf: Branch Predictor Hints
#if defined(__clang__)
# define expect(expr, val) __builtin_expect((expr), (val))
#else
# define expect(expr, val) (expr)
#endif
#define likely(expr) expect(expr,1)
#define unlikely(expr) expect(expr,0)
////////////////////////////////
//~ erg: type casting
#if MD_COMPILER_CPP
# ifndef ccast
# define ccast( type, value ) ( const_cast< type >( (value) ) )
# endif
# ifndef pcast
# define pcast( type, value ) ( * reinterpret_cast< type* >( & ( value ) ) )
# endif
# ifndef rcast
# define rcast( type, value ) reinterpret_cast< type >( value )
# endif
# ifndef scast
# define scast( type, value ) static_cast< type >( value )
# endif
#else
# ifndef ccast
# define ccast( type, value ) ( (type)(value) )
# endif
# ifndef pcast
# define pcast( type, value ) ( * (type*)(& value) )
# endif
# ifndef rcast
# define rcast( type, value ) ( (type)(value) )
# endif
# ifndef scast
# define scast( type, value ) ( (type)(value) )
# endif
#endif
#if ! defined(typeof) && (!MD_COMPILER_C || __STDC_VERSION__ < 202311L)
# if ! MD_COMPILER_C
# define typeof decltype
# elif defined(_MSC_VER)
# define typeof __typeof__
# elif defined(__GNUC__) || defined(__clang__)
# define typeof __typeof__
# else
# error "Compiler not supported"
# endif
#endif
#ifndef MD_API_C_BEGIN
# if MD_COMPILER_C
# define MD_API_C_BEGIN
# define MD_API_C_END
# else
# define MD_API_C_BEGIN extern "C" {
# define MD_API_C_END }
# endif
#endif
#if MD_COMPILER_C
# if __STDC_VERSION__ >= 202311L
# define enum_underlying(type) : type
# else
# define enum_underlying(type)
# endif
#else
# define enum_underlying(type) : type
#endif
#if MD_COMPILER_C
# ifndef nullptr
# define nullptr NULL
# endif
# ifndef MD_REMOVE_PTR
# define MD_REMOVE_PTR(type) typeof(* ( (type) NULL) )
# endif
#endif
#if ! defined(MD_PARAM_DEFAULT) && MD_COMPILER_CPP
# define MD_PARAM_DEFAULT = {}
#else
# define MD_PARAM_DEFAULT
#endif
#if MD_COMPILER_C
# ifndef static_assert
# undef static_assert
# if MD_COMPILER_C && __STDC_VERSION__ >= 201112L
# define static_assert(condition, message) _Static_assert(condition, message)
# else
# define static_assert(condition, message) typedef char static_assertion_##__LINE__[(condition)?1:-1]
# endif
# endif
#endif