llvm-project/libcxx/test/support/operator_hijacker.h
Mark de Wever fb855eb941 [libc++] Qualifies size_t.
This has been done using the following command

  find libcxx/test -type f -exec perl -pi -e 's|^([^/]+?)((?<!::)size_t)|\1std::\2|' \{} \;

And manually removed some false positives in std/depr/depr.c.headers.

The `std` module doesn't export `::size_t`, this is a preparation for that module.

Reviewed By: ldionne, #libc, EricWF, philnik

Differential Revision: https://reviews.llvm.org/D146088
2023-03-21 17:41:36 +01:00

47 lines
1.7 KiB
C++

//===----------------------------------------------------------------------===//
//
// 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