Merge pull request #64 from lioncash/constexpr

Global: Make operator|= and &= for enums constexpr
This commit is contained in:
Phillip Stephens 2019-09-08 00:13:16 -07:00 committed by GitHub
commit 97ee63f0fe
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 7 additions and 7 deletions

View File

@ -87,33 +87,33 @@ typedef struct stat64 atStat64_t;
#ifndef ENABLE_BITWISE_ENUM #ifndef ENABLE_BITWISE_ENUM
#define ENABLE_BITWISE_ENUM(type) \ #define ENABLE_BITWISE_ENUM(type) \
constexpr type operator|(type a, type b) { \ constexpr type operator|(type a, type b) noexcept { \
using T = std::underlying_type_t<type>; \ using T = std::underlying_type_t<type>; \
return type(static_cast<T>(a) | static_cast<T>(b)); \ return type(static_cast<T>(a) | static_cast<T>(b)); \
} \ } \
constexpr type operator&(type a, type b) { \ constexpr type operator&(type a, type b) noexcept { \
using T = std::underlying_type_t<type>; \ using T = std::underlying_type_t<type>; \
return type(static_cast<T>(a) & static_cast<T>(b)); \ return type(static_cast<T>(a) & static_cast<T>(b)); \
} \ } \
inline type& operator|=(type& a, const type& b) { \ constexpr type& operator|=(type& a, type b) noexcept { \
using T = std::underlying_type_t<type>; \ using T = std::underlying_type_t<type>; \
a = type(static_cast<T>(a) | static_cast<T>(b)); \ a = type(static_cast<T>(a) | static_cast<T>(b)); \
return a; \ return a; \
} \ } \
inline type& operator&=(type& a, const type& b) { \ constexpr type& operator&=(type& a, type b) noexcept { \
using T = std::underlying_type_t<type>; \ using T = std::underlying_type_t<type>; \
a = type(static_cast<T>(a) & static_cast<T>(b)); \ a = type(static_cast<T>(a) & static_cast<T>(b)); \
return a; \ return a; \
} \ } \
constexpr type operator~(type key) { \ constexpr type operator~(type key) noexcept { \
using T = std::underlying_type_t<type>; \ using T = std::underlying_type_t<type>; \
return type(~static_cast<T>(key)); \ return type(~static_cast<T>(key)); \
} \ } \
constexpr bool True(type key) { \ constexpr bool True(type key) noexcept { \
using T = std::underlying_type_t<type>; \ using T = std::underlying_type_t<type>; \
return static_cast<T>(key) != 0; \ return static_cast<T>(key) != 0; \
} \ } \
constexpr bool False(type key) { \ constexpr bool False(type key) noexcept { \
using T = std::underlying_type_t<type>; \ using T = std::underlying_type_t<type>; \
return static_cast<T>(key) == 0; \ return static_cast<T>(key) == 0; \
} }