| // Copyright 2023 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 "pw_polyfill/standard_library/namespace.h" |
| |
| _PW_POLYFILL_BEGIN_NAMESPACE_STD |
| |
| template <typename T> |
| T* addressof(T& arg) noexcept { |
| return reinterpret_cast<T*>( |
| const_cast<char*>(reinterpret_cast<const volatile char*>(&arg))); |
| } |
| |
| template <typename T> |
| T* addressof(T&& arg) = delete; |
| |
| template <typename T> |
| struct pointer_traits; |
| |
| template <typename T> |
| struct pointer_traits<T*> { |
| using pointer = T*; |
| using element_type = T; |
| using difference_type = decltype((const char*)1 - (const char*)1); |
| }; |
| |
| _PW_POLYFILL_END_NAMESPACE_STD |
