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/*
* 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 EINA_CXX_EINA_TUPLE_UNWRAP_HH
#define EINA_CXX_EINA_TUPLE_UNWRAP_HH
#include <eina_integer_sequence.hh>
namespace efl { namespace eina {
template <typename Callable, typename T, std::size_t... S>
auto call_tuple_unwrap(Callable const& callable, T const& tuple
, eina::index_sequence<S...>)
-> decltype(callable(std::get<S>(tuple)...))
{
return callable(std::get<S>(tuple)...);
}
template <typename Callable, typename T, std::size_t... S
, typename... Args>
auto call_tuple_unwrap_prefix(Callable const& callable, T const& tuple
, eina::index_sequence<S...>
, Args&&... args)
-> decltype(callable(std::forward<Args>(args)..., std::get<S>(tuple)...))
{
return callable(std::forward<Args>(args)..., std::get<S>(tuple)...);
}
template <typename Callable, typename T, std::size_t... S
, typename... Args>
auto call_tuple_unwrap_suffix(Callable const& callable, T const& tuple
, eina::index_sequence<S...>
, Args&&... args)
-> decltype(callable(std::get<S>(tuple)..., std::forward<Args>(args)...))
{
return callable(std::get<S>(tuple)..., std::forward<Args>(args)...);
}
} }
#endif