54 lines
1.8 KiB
C++
54 lines
1.8 KiB
C++
/*
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* Copyright 2019 by its authors. See AUTHORS.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef EINA_CXX_EINA_TUPLE_UNWRAP_HH
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#define EINA_CXX_EINA_TUPLE_UNWRAP_HH
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#include <eina_integer_sequence.hh>
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namespace efl { namespace eina {
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template <typename Callable, typename T, std::size_t... S>
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auto call_tuple_unwrap(Callable const& callable, T const& tuple
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, eina::index_sequence<S...>)
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-> decltype(callable(std::get<S>(tuple)...))
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{
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return callable(std::get<S>(tuple)...);
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}
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template <typename Callable, typename T, std::size_t... S
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, typename... Args>
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auto call_tuple_unwrap_prefix(Callable const& callable, T const& tuple
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, eina::index_sequence<S...>
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, Args&&... args)
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-> decltype(callable(std::forward<Args>(args)..., std::get<S>(tuple)...))
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{
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return callable(std::forward<Args>(args)..., std::get<S>(tuple)...);
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}
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template <typename Callable, typename T, std::size_t... S
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, typename... Args>
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auto call_tuple_unwrap_suffix(Callable const& callable, T const& tuple
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, eina::index_sequence<S...>
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, Args&&... args)
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-> decltype(callable(std::get<S>(tuple)..., std::forward<Args>(args)...))
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{
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return callable(std::get<S>(tuple)..., std::forward<Args>(args)...);
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}
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} }
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#endif
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