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common: common_funcs: Add a macro for defining enum flag operators.

This commit is contained in:
bunnei 2020-03-20 22:40:03 -04:00
parent f2676efe23
commit b11b424a2d
1 changed files with 32 additions and 0 deletions
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32
src/common/common_funcs.h
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@ -55,6 +55,38 @@ __declspec(dllimport) void __stdcall DebugBreak(void);
// Defined in Misc.cpp. // Defined in Misc.cpp.
std::string GetLastErrorMsg(); std::string GetLastErrorMsg();
#define DECLARE_ENUM_FLAG_OPERATORS(type) \
constexpr type operator|(type a, type b) noexcept { \
using T = std::underlying_type_t<type>; \
return static_cast<type>(static_cast<T>(a) | static_cast<T>(b)); \
} \
constexpr type operator&(type a, type b) noexcept { \
using T = std::underlying_type_t<type>; \
return static_cast<type>(static_cast<T>(a) & static_cast<T>(b)); \
} \
constexpr type& operator|=(type& a, type b) noexcept { \
using T = std::underlying_type_t<type>; \
a = static_cast<type>(static_cast<T>(a) | static_cast<T>(b)); \
return a; \
} \
constexpr type& operator&=(type& a, type b) noexcept { \
using T = std::underlying_type_t<type>; \
a = static_cast<type>(static_cast<T>(a) & static_cast<T>(b)); \
return a; \
} \
constexpr type operator~(type key) noexcept { \
using T = std::underlying_type_t<type>; \
return static_cast<type>(~static_cast<T>(key)); \
} \
constexpr bool True(type key) noexcept { \
using T = std::underlying_type_t<type>; \
return static_cast<T>(key) != 0; \
} \
constexpr bool False(type key) noexcept { \
using T = std::underlying_type_t<type>; \
return static_cast<T>(key) == 0; \
}
namespace Common { namespace Common {
constexpr u32 MakeMagic(char a, char b, char c, char d) { constexpr u32 MakeMagic(char a, char b, char c, char d) {