mbed-os5 only for TYBLE16
Dependents: TYBLE16_simple_data_logger TYBLE16_MP3_Air
platform/cxxsupport/mstd_tuple
- Committer:
- kenjiArai
- Date:
- 2019-12-31
- Revision:
- 1:9db0e321a9f4
File content as of revision 1:9db0e321a9f4:
/* mbed Microcontroller Library * Copyright (c) 2019 ARM Limited * SPDX-License-Identifier: Apache-2.0 * * 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 LEOR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef MSTD_TUPLE_ #define MSTD_TUPLE_ /* <mstd_tuple> * * - includes toolchain's <tuple> * - For all toolchains, C++17 backports: * - mstd::apply * - mstd::make_from_tuple */ #include <tuple> #if __cpp_lib_apply < 201603 || __cpp_lib_make_from_tuple < 201606 #include <mstd_utility> // integer_sequence #endif #if __cpp_lib_apply < 201603 #include <mstd_functional> // invoke #endif namespace mstd { using std::tuple; using std::ignore; using std::make_tuple; using std::forward_as_tuple; using std::tie; using std::tuple_cat; // [tuple.apply] #if __cpp_lib_apply >= 201603 using std::apply; #else namespace impl { template <class F, class Tuple, size_t... I> invoke_result_t<F, tuple_element_t<I, Tuple>...> apply(F&& f, Tuple&& t, std::index_sequence<I...>) { return mstd::invoke(std::forward<F>(f), std::get<I>(std::forward<Tuple>(t))...); } } // apply<F, Tuple> - works also for tuple-like objects such as array or pair // user-defined types can specialize std::get and std::tuple_size to make this work template <class F, class Tuple> auto apply(F&& f, Tuple&& t) -> decltype(impl::apply(std::forward<F>(f), std::forward<Tuple>(t), std::make_index_sequence<tuple_size<remove_reference_t<Tuple>>::value>{})) { return impl::apply(std::forward<F>(f), std::forward<Tuple>(t), std::make_index_sequence<std::tuple_size<std::remove_reference_t<Tuple>>::value>{}); } #endif #if __cpp_lib_make_from_tuple >= 201606 using std::make_from_tuple; #else namespace impl { template <class T, class Tuple, size_t... I> T make_from_tuple(Tuple&& t, std::index_sequence<I...>) { return T(std::get<I>(std::forward<Tuple>(t))...); } } template <class T, class Tuple> T make_from_tuple(Tuple&& t) { return impl::make_from_tuple<T>(std::forward<Tuple>(t), std::make_index_sequence<std::tuple_size<std::remove_reference_t<Tuple>>::value>{}); } #endif using std::tuple_size; using std::tuple_element; using std::tuple_element_t; using std::get; } // namespace mstd #endif // MSTD_TUPLE_