common: common_funcs: Add a macro for defining enum flag operators.
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@ -55,6 +55,38 @@ __declspec(dllimport) void __stdcall DebugBreak(void);
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// Defined in Misc.cpp.
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std::string GetLastErrorMsg();
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#define DECLARE_ENUM_FLAG_OPERATORS(type) \
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constexpr type operator|(type a, type b) noexcept { \
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using T = std::underlying_type_t<type>; \
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return static_cast<type>(static_cast<T>(a) | static_cast<T>(b)); \
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} \
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constexpr type operator&(type a, type b) noexcept { \
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using T = std::underlying_type_t<type>; \
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return static_cast<type>(static_cast<T>(a) & static_cast<T>(b)); \
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} \
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constexpr type& operator|=(type& a, type b) noexcept { \
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using T = std::underlying_type_t<type>; \
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a = static_cast<type>(static_cast<T>(a) | static_cast<T>(b)); \
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return a; \
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} \
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constexpr type& operator&=(type& a, type b) noexcept { \
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using T = std::underlying_type_t<type>; \
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a = static_cast<type>(static_cast<T>(a) & static_cast<T>(b)); \
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return a; \
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} \
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constexpr type operator~(type key) noexcept { \
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using T = std::underlying_type_t<type>; \
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return static_cast<type>(~static_cast<T>(key)); \
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} \
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constexpr bool True(type key) noexcept { \
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using T = std::underlying_type_t<type>; \
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return static_cast<T>(key) != 0; \
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} \
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constexpr bool False(type key) noexcept { \
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using T = std::underlying_type_t<type>; \
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return static_cast<T>(key) == 0; \
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}
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namespace Common {
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constexpr u32 MakeMagic(char a, char b, char c, char d) {
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