forked from enlightenment/efl
50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
/*
|
|
* Copyright 2019 by its authors. See AUTHORS.
|
|
*
|
|
* 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.
|
|
*/
|
|
#ifndef EFL_EINA_LOGICAL_HH
|
|
#define EFL_EINA_LOGICAL_HH
|
|
|
|
#include <type_traits>
|
|
|
|
namespace efl { namespace eina { namespace _mpl {
|
|
|
|
template <bool... N>
|
|
struct or_;
|
|
|
|
template <>
|
|
struct or_<> : std::integral_constant<bool, false> {};
|
|
|
|
template <bool B>
|
|
struct or_<B> : std::integral_constant<bool, B> {};
|
|
|
|
template <bool B1, bool B2, bool... Bs>
|
|
struct or_<B1, B2, Bs...> : std::integral_constant<bool, B1 || B2 || or_<Bs...>::value> {};
|
|
|
|
template <bool... N>
|
|
struct and_;
|
|
|
|
template <>
|
|
struct and_<> : std::integral_constant<bool, true> {};
|
|
|
|
template <bool B>
|
|
struct and_<B> : std::integral_constant<bool, B> {};
|
|
|
|
template <bool B1, bool B2, bool... Bs>
|
|
struct and_<B1, B2, Bs...> : std::integral_constant<bool, B1 && B2 && and_<Bs...>::value> {};
|
|
|
|
} } }
|
|
|
|
#endif
|