| // Copyright 2020 The Pigweed 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 |
| // |
| // https://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. |
| #pragma once |
| |
| #include <type_traits> |
| |
| #include "pw_polyfill/standard_library/namespace.h" |
| |
| _PW_POLYFILL_BEGIN_NAMESPACE_STD |
| |
| template <typename T> |
| constexpr remove_reference_t<T>&& move(T&& object) { |
| return (remove_reference_t<T> &&) object; |
| } |
| |
| // Forward declare these classes, which are specialized in other headers. |
| template <decltype(sizeof(0)), typename> |
| struct tuple_element; |
| |
| template <typename> |
| struct tuple_size; |
| |
| template <typename T, T... kSequence> |
| class integer_sequence; |
| |
| template <size_t... kSequence> |
| using index_sequence = integer_sequence<decltype(sizeof(int)), kSequence...>; |
| |
| template <typename T, T kEnd> |
| #if __has_builtin(__make_integer_seq) |
| using make_integer_sequence = __make_integer_seq<integer_sequence, T, kEnd>; |
| #elif __has_builtin(__integer_pack) |
| using make_integer_sequence = integer_sequence<T, __integer_pack(kEnd)...>; |
| #endif // make_integer_sequence |
| |
| template <size_t kEnd> |
| using make_index_sequence = make_integer_sequence<size_t, kEnd>; |
| |
| struct in_place_t { |
| explicit constexpr in_place_t() = default; |
| }; |
| |
| inline constexpr in_place_t in_place{}; |
| |
| _PW_POLYFILL_END_NAMESPACE_STD |