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//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
// `check_assertion.h` requires Unix headers and regex support.
// REQUIRES: has-unix-headers
// UNSUPPORTED: no-localization
// UNSUPPORTED: no-exceptions
// <flat_map>
// class flat_multimap
// void swap(flat_multimap& y) noexcept;
// friend void swap(flat_multimap& x, flat_multimap& y) noexcept
// Test that std::terminate is called if any exception is thrown during swap
#include <flat_map>
#include <cassert>
#include <deque>
#include <functional>
#include <vector>
#include "test_macros.h"
#include "../helpers.h"
#include "check_assertion.h"
template <class F>
void test_swap_exception_guarantee([[maybe_unused]] F&& swap_function) {
{
// key swap throws
using KeyContainer = ThrowOnMoveContainer<int>;
using ValueContainer = std::vector<int>;
using M = std::flat_multimap<int, int, TransparentComparator, KeyContainer, ValueContainer>;
M m1, m2;
m1.emplace(1, 1);
m1.emplace(1, 2);
m2.emplace(3, 3);
m2.emplace(3, 4);
// swap is noexcept
EXPECT_STD_TERMINATE([&] { swap_function(m1, m2); });
}
{
// value swap throws
using KeyContainer = std::vector<int>;
using ValueContainer = ThrowOnMoveContainer<int>;
using M = std::flat_multimap<int, int, TransparentComparator, KeyContainer, ValueContainer>;
M m1, m2;
m1.emplace(1, 1);
m1.emplace(1, 2);
m2.emplace(3, 3);
m2.emplace(3, 4);
// swap is noexcept
EXPECT_STD_TERMINATE([&] { swap_function(m1, m2); });
}
}
int main(int, char**) {
{
auto swap_func = [](auto& m1, auto& m2) { swap(m1, m2); };
test_swap_exception_guarantee(swap_func);
}
{
auto swap_func = [](auto& m1, auto& m2) { m1.swap(m2); };
test_swap_exception_guarantee(swap_func);
}
return 0;
}
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