88 lines
3.0 KiB
C
88 lines
3.0 KiB
C
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/******************************************************************************
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* QSkinny - Copyright (C) 2016 Uwe Rathmann
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* This file may be used under the terms of the QSkinny License, Version 1.0
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*****************************************************************************/
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#ifndef QSK_FLAGS_H_
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#define QSK_FLAGS_H_
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#include "QskGlobal.h"
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#include <functional>
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#define QSK_DECLARE_OPERATORS_FOR_FLAGS( Flags ) \
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constexpr inline Flags operator|( const Flags &a, const Flags &b ) noexcept \
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{ \
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using underlying = typename std::underlying_type< Flags >::type; \
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return static_cast< Flags >( \
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static_cast< underlying >( a ) \
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| static_cast< underlying >( b ) ); \
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} \
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\
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inline Flags& operator|=( Flags& a, const Flags& b ) noexcept \
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{ \
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return ( a = a | b ); \
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} \
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\
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constexpr inline Flags operator&( const Flags& a, const Flags& b ) noexcept \
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{ \
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using underlying = typename std::underlying_type< Flags >::type; \
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return static_cast< Flags >( \
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static_cast< underlying >( a ) & static_cast< underlying >( b ) ); \
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} \
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\
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inline Flags& operator&=( Flags& a, const Flags& b ) noexcept \
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{ \
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return ( a = static_cast< Flags >( a & b ) ); \
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} \
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\
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constexpr inline Flags operator~( const Flags& a ) noexcept \
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{ \
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using underlying = typename std::underlying_type< Flags >::type; \
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return static_cast< Flags >( \
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~static_cast< underlying >( a ) ); \
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} \
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\
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constexpr inline Flags operator^( const Flags& a, const Flags& b ) noexcept \
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{ \
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using underlying = typename std::underlying_type< Flags >::type; \
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return static_cast< Flags >( \
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static_cast< underlying >( a ) ^ static_cast< underlying >( b ) ); \
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} \
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\
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inline Flags& operator^=( Flags& a, const Flags& b ) noexcept \
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{ \
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return ( a = a ^ b ); \
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} \
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\
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constexpr inline Flags operator<<( const Flags& a, const int& b ) noexcept \
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{ \
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using underlying = typename std::underlying_type< Flags >::type; \
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return static_cast< Flags >( static_cast< underlying >( a ) << b ); \
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} \
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\
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constexpr inline Flags operator>>( const Flags& a, const int& b ) noexcept \
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{ \
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using underlying = typename std::underlying_type< Flags >::type; \
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return static_cast< Flags >( static_cast< underlying >( a ) >> b ); \
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} \
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\
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constexpr bool operator!( const Flags& a ) noexcept \
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{ \
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using underlying = typename std::underlying_type< Flags >::type; \
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return !static_cast< underlying >( a ); \
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} \
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\
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namespace std \
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{ \
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template< > struct hash< Flags > \
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{ \
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constexpr size_t operator()( const Flags& element ) const noexcept \
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{ \
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using underlying = typename std::underlying_type< Flags >::type; \
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return static_cast< underlying >( element ); \
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} \
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}; \
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}
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#endif
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