101 lines
4.4 KiB
C++
101 lines
4.4 KiB
C++
#pragma once
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////////////////////////////////////////////////////////////////////////////////
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// The MIT License (MIT)
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//
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// Copyright (c) 2017 Nicholas Frechette & Animation Compression Library contributors
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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////////////////////////////////////////////////////////////////////////////////
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#include "acl/core/impl/compiler_utils.h"
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#include <type_traits>
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ACL_IMPL_FILE_PRAGMA_PUSH
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// This macro defines common operators for manipulating bit flags
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#define ACL_IMPL_ENUM_FLAGS_OPERATORS(EnumType) \
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constexpr EnumType operator|(EnumType lhs, EnumType rhs) \
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{ \
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typedef typename std::underlying_type<EnumType>::type IntegralType; \
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typedef typename std::make_unsigned<IntegralType>::type RawType; \
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return static_cast<EnumType>(static_cast<RawType>(lhs) | static_cast<RawType>(rhs)); \
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} \
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inline void operator|=(EnumType& lhs, EnumType rhs) \
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{ \
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typedef typename std::underlying_type<EnumType>::type IntegralType; \
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typedef typename std::make_unsigned<IntegralType>::type RawType; \
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lhs = static_cast<EnumType>(static_cast<RawType>(lhs) | static_cast<RawType>(rhs)); \
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} \
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constexpr EnumType operator&(EnumType lhs, EnumType rhs) \
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{ \
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typedef typename std::underlying_type<EnumType>::type IntegralType; \
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typedef typename std::make_unsigned<IntegralType>::type RawType; \
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return static_cast<EnumType>(static_cast<RawType>(lhs) & static_cast<RawType>(rhs)); \
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} \
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inline void operator&=(EnumType& lhs, EnumType rhs) \
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{ \
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typedef typename std::underlying_type<EnumType>::type IntegralType; \
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typedef typename std::make_unsigned<IntegralType>::type RawType; \
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lhs = static_cast<EnumType>(static_cast<RawType>(lhs) & static_cast<RawType>(rhs)); \
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} \
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constexpr EnumType operator^(EnumType lhs, EnumType rhs) \
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{ \
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typedef typename std::underlying_type<EnumType>::type IntegralType; \
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typedef typename std::make_unsigned<IntegralType>::type RawType; \
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return static_cast<EnumType>(static_cast<RawType>(lhs) ^ static_cast<RawType>(rhs)); \
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} \
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inline void operator^=(EnumType& lhs, EnumType rhs) \
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{ \
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typedef typename std::underlying_type<EnumType>::type IntegralType; \
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typedef typename std::make_unsigned<IntegralType>::type RawType; \
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lhs = static_cast<EnumType>(static_cast<RawType>(lhs) ^ static_cast<RawType>(rhs)); \
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} \
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constexpr EnumType operator~(EnumType rhs) \
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{ \
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typedef typename std::underlying_type<EnumType>::type IntegralType; \
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typedef typename std::make_unsigned<IntegralType>::type RawType; \
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return static_cast<EnumType>(~static_cast<RawType>(rhs)); \
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}
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namespace acl
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{
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////////////////////////////////////////////////////////////////////////////////
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// Returns true if any of the requested flags are set.
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template<typename EnumType>
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constexpr bool are_any_enum_flags_set(EnumType flags, EnumType flags_to_test)
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{
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typedef typename std::underlying_type<EnumType>::type IntegralType;
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return static_cast<IntegralType>(flags & flags_to_test) != 0;
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}
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////////////////////////////////////////////////////////////////////////////////
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// Returns true if all of the requested flags are set.
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template<typename EnumType>
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constexpr bool are_all_enum_flags_set(EnumType flags, EnumType flags_to_test)
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{
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typedef typename std::underlying_type<EnumType>::type IntegralType;
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return static_cast<IntegralType>(flags & flags_to_test) == static_cast<IntegralType>(flags_to_test);
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}
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}
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ACL_IMPL_FILE_PRAGMA_POP
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