| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef MOVEONLY_H |
| #define MOVEONLY_H |
| |
| #include "test_macros.h" |
| |
| #if TEST_STD_VER >= 11 |
| |
| #include <cstddef> |
| #include <functional> |
| |
| class MoveOnly |
| { |
| MoveOnly(const MoveOnly&); |
| MoveOnly& operator=(const MoveOnly&); |
| |
| int data_; |
| public: |
| constexpr MoveOnly(int data = 1) : data_(data) {} |
| TEST_CONSTEXPR_CXX14 MoveOnly(MoveOnly&& x) |
| : data_(x.data_) {x.data_ = 0;} |
| TEST_CONSTEXPR_CXX14 MoveOnly& operator=(MoveOnly&& x) |
| {data_ = x.data_; x.data_ = 0; return *this;} |
| |
| constexpr int get() const {return data_;} |
| |
| friend constexpr bool operator==(const MoveOnly& x, const MoveOnly& y) |
| { return x.data_ == y.data_; } |
| friend constexpr bool operator!=(const MoveOnly& x, const MoveOnly& y) |
| { return x.data_ != y.data_; } |
| friend constexpr bool operator< (const MoveOnly& x, const MoveOnly& y) |
| { return x.data_ < y.data_; } |
| friend constexpr bool operator<=(const MoveOnly& x, const MoveOnly& y) |
| { return x.data_ <= y.data_; } |
| friend constexpr bool operator> (const MoveOnly& x, const MoveOnly& y) |
| { return x.data_ > y.data_; } |
| friend constexpr bool operator>=(const MoveOnly& x, const MoveOnly& y) |
| { return x.data_ >= y.data_; } |
| |
| TEST_CONSTEXPR_CXX14 MoveOnly operator+(const MoveOnly& x) const |
| { return MoveOnly{data_ + x.data_}; } |
| TEST_CONSTEXPR_CXX14 MoveOnly operator*(const MoveOnly& x) const |
| { return MoveOnly{data_ * x.data_}; } |
| |
| template<class T, class U> |
| friend void operator,(T t, U u) = delete; |
| }; |
| |
| namespace std { |
| |
| template <> |
| struct hash<MoveOnly> |
| { |
| typedef MoveOnly argument_type; |
| typedef size_t result_type; |
| constexpr size_t operator()(const MoveOnly& x) const {return x.get();} |
| }; |
| |
| } |
| |
| #endif // TEST_STD_VER >= 11 |
| |
| #endif // MOVEONLY_H |