old-nall/stdint.hpp
2016-09-03 17:58:38 +02:00

65 lines
2 KiB
C++

#pragma once
#if defined(_MSC_VER)
typedef signed char int8_t;
typedef signed short int16_t;
typedef signed int int32_t;
typedef signed long long int64_t;
typedef int64_t intmax_t;
#if defined(_WIN64)
typedef int64_t intptr_t;
#else
typedef int32_t intptr_t;
#endif
typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned int uint32_t;
typedef unsigned long long uint64_t;
typedef uint64_t uintmax_t;
#if defined(_WIN64)
typedef uint64_t uintptr_t;
#else
typedef uint32_t uintptr_t;
#endif
#else
#include <stdint.h>
#endif
//note: (u)intmax actually mean it: use as many bits as is possible
#if defined(__SIZEOF_INT128__)
using int128_t = signed __int128;
using uint128_t = unsigned __int128;
#define INTMAX_BITS 128
using intmax = int128_t;
using uintmax = uint128_t;
#else
#define INTMAX_BITS 64
using intmax = intmax_t;
using uintmax = uintmax_t;
#endif
using intptr = intptr_t;
using uintptr = uintptr_t;
using float32_t = float;
using float64_t = double;
//note: long double size is not reliable across platforms
//using float80_t = long double;
static_assert(sizeof(int8_t) == 1, "int8_t is not of the correct size" );
static_assert(sizeof(int16_t) == 2, "int16_t is not of the correct size");
static_assert(sizeof(int32_t) == 4, "int32_t is not of the correct size");
static_assert(sizeof(int64_t) == 8, "int64_t is not of the correct size");
static_assert(sizeof(uint8_t) == 1, "int8_t is not of the correct size" );
static_assert(sizeof(uint16_t) == 2, "int16_t is not of the correct size");
static_assert(sizeof(uint32_t) == 4, "int32_t is not of the correct size");
static_assert(sizeof(uint64_t) == 8, "int64_t is not of the correct size");
static_assert(sizeof(float) >= 4, "float32_t is not of the correct size");
static_assert(sizeof(double) >= 8, "float64_t is not of the correct size");
//static_assert(sizeof(long double) >= 10, "float80_t is not of the correct size");
using uint = unsigned int;