| //===----------------------------------------------------------------------===// |
| // |
| // 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 SUPPORT_OPERATOR_HIJACKER_H |
| #define SUPPORT_OPERATOR_HIJACKER_H |
| |
| #include <cstddef> |
| #include <functional> |
| |
| #include "test_macros.h" |
| |
| /// Helper struct to test ADL-hijacking in containers. |
| /// |
| /// The class has some additional operations to be usable in all containers. |
| struct operator_hijacker { |
| bool operator<(const operator_hijacker&) const { return true; } |
| bool operator==(const operator_hijacker&) const { return true; } |
| |
| template <typename T> |
| friend void operator&(T&&) = delete; |
| template <class T, class U> |
| friend void operator,(T&&, U&&) = delete; |
| template <class T, class U> |
| friend void operator&&(T&&, U&&) = delete; |
| template <class T, class U> |
| friend void operator||(T&&, U&&) = delete; |
| }; |
| |
| static_assert(std::is_trivially_copyable<operator_hijacker>::value && // |
| std::is_copy_constructible<operator_hijacker>::value && // |
| std::is_move_constructible<operator_hijacker>::value && // |
| std::is_copy_assignable<operator_hijacker>::value && // |
| std::is_move_assignable<operator_hijacker>::value, // |
| "does not satisfy the requirements for atomic<operator_hijacker>"); |
| |
| template <> |
| struct std::hash<operator_hijacker> { |
| std::size_t operator()(const operator_hijacker&) const { return 0; } |
| }; |
| |
| #endif // SUPPORT_OPERATOR_HIJACKER_H |
