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/*
* Copyright 2019-2021 Diligent Graphics LLC
* Copyright 2015-2019 Egor Yusov
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* In no event and under no legal theory, whether in tort (including negligence),
* contract, or otherwise, unless required by applicable law (such as deliberate
* and grossly negligent acts) or agreed to in writing, shall any Contributor be
* liable for any damages, including any direct, indirect, special, incidental,
* or consequential damages of any character arising as a result of this License or
* out of the use or inability to use the software (including but not limited to damages
* for loss of goodwill, work stoppage, computer failure or malfunction, or any and
* all other commercial damages or losses), even if such Contributor has been advised
* of the possibility of such damages.
*/
#pragma once
#include "BasicTypes.h"
#if DILIGENT_C_INTERFACE
# define DEFINE_FLAG_ENUM_OPERATORS(ENUMTYPE)
#else
template <typename EnumType>
using _UNDERLYING_ENUM_T = typename std::underlying_type<EnumType>::type;
# define DEFINE_FLAG_ENUM_OPERATORS(ENUMTYPE) \
extern "C++" \
{ \
inline ENUMTYPE& operator|=(ENUMTYPE& a, ENUMTYPE b) throw() { return reinterpret_cast<ENUMTYPE&>(reinterpret_cast<_UNDERLYING_ENUM_T<ENUMTYPE>&>(a) |= static_cast<_UNDERLYING_ENUM_T<ENUMTYPE>>(b)); } \
inline ENUMTYPE& operator&=(ENUMTYPE& a, ENUMTYPE b) throw() { return reinterpret_cast<ENUMTYPE&>(reinterpret_cast<_UNDERLYING_ENUM_T<ENUMTYPE>&>(a) &= static_cast<_UNDERLYING_ENUM_T<ENUMTYPE>>(b)); } \
inline ENUMTYPE& operator^=(ENUMTYPE& a, ENUMTYPE b) throw() { return reinterpret_cast<ENUMTYPE&>(reinterpret_cast<_UNDERLYING_ENUM_T<ENUMTYPE>&>(a) ^= static_cast<_UNDERLYING_ENUM_T<ENUMTYPE>>(b)); } \
inline constexpr ENUMTYPE operator|(ENUMTYPE a, ENUMTYPE b) throw() { return static_cast<ENUMTYPE>(static_cast<_UNDERLYING_ENUM_T<ENUMTYPE>>(a) | static_cast<_UNDERLYING_ENUM_T<ENUMTYPE>>(b)); } \
inline constexpr ENUMTYPE operator&(ENUMTYPE a, ENUMTYPE b) throw() { return static_cast<ENUMTYPE>(static_cast<_UNDERLYING_ENUM_T<ENUMTYPE>>(a) & static_cast<_UNDERLYING_ENUM_T<ENUMTYPE>>(b)); } \
inline constexpr ENUMTYPE operator^(ENUMTYPE a, ENUMTYPE b) throw() { return static_cast<ENUMTYPE>(static_cast<_UNDERLYING_ENUM_T<ENUMTYPE>>(a) ^ static_cast<_UNDERLYING_ENUM_T<ENUMTYPE>>(b)); } \
inline constexpr ENUMTYPE operator~(ENUMTYPE a) throw() { return static_cast<ENUMTYPE>(~static_cast<_UNDERLYING_ENUM_T<ENUMTYPE>>(a)); } \
}
#endif
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