mirror of
https://github.com/llvm/llvm-project.git
synced 2025-04-16 11:46:41 +00:00
125 lines
3.9 KiB
C++
125 lines
3.9 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 TEST_STD_CONTAINERS_CONTAINER_ADAPTORS_FLAT_SET_HELPERS_H
|
|
#define TEST_STD_CONTAINERS_CONTAINER_ADAPTORS_FLAT_SET_HELPERS_H
|
|
|
|
#include <algorithm>
|
|
#include <cassert>
|
|
#include <string>
|
|
#include <vector>
|
|
#include <flat_set>
|
|
|
|
#include "../flat_helpers.h"
|
|
#include "test_allocator.h"
|
|
#include "test_macros.h"
|
|
|
|
template <class... Args>
|
|
void check_invariant(const std::flat_set<Args...>& m) {
|
|
assert(std::is_sorted(m.begin(), m.end(), m.key_comp()));
|
|
auto key_equal = [&](const auto& x, const auto& y) {
|
|
const auto& c = m.key_comp();
|
|
return !c(x, y) && !c(y, x);
|
|
};
|
|
assert(std::adjacent_find(m.begin(), m.end(), key_equal) == m.end());
|
|
}
|
|
|
|
template <class F>
|
|
void test_emplace_exception_guarantee([[maybe_unused]] F&& emplace_function) {
|
|
#ifndef TEST_HAS_NO_EXCEPTIONS
|
|
using C = TransparentComparator;
|
|
{
|
|
// Throw on emplace the key, and underlying has strong exception guarantee
|
|
using KeyContainer = std::vector<int, test_allocator<int>>;
|
|
using M = std::flat_set<int, C, KeyContainer>;
|
|
|
|
LIBCPP_STATIC_ASSERT(std::__container_traits<KeyContainer>::__emplacement_has_strong_exception_safety_guarantee);
|
|
|
|
test_allocator_statistics stats;
|
|
|
|
KeyContainer a({1, 2, 3, 4}, test_allocator<int>{&stats});
|
|
[[maybe_unused]] auto expected_keys = a;
|
|
M m(std::sorted_unique, std::move(a));
|
|
|
|
stats.throw_after = 1;
|
|
try {
|
|
emplace_function(m, 0);
|
|
assert(false);
|
|
} catch (const std::bad_alloc&) {
|
|
check_invariant(m);
|
|
// In libc++, the flat_set is unchanged
|
|
LIBCPP_ASSERT(m.size() == 4);
|
|
LIBCPP_ASSERT(std::ranges::equal(m, expected_keys));
|
|
}
|
|
}
|
|
{
|
|
// Throw on emplace the key, and underlying has no strong exception guarantee
|
|
using KeyContainer = EmplaceUnsafeContainer<int>;
|
|
using M = std::flat_set<int, C, KeyContainer>;
|
|
|
|
LIBCPP_STATIC_ASSERT(!std::__container_traits<KeyContainer>::__emplacement_has_strong_exception_safety_guarantee);
|
|
KeyContainer a = {1, 2, 3, 4};
|
|
M m(std::sorted_unique, std::move(a));
|
|
try {
|
|
emplace_function(m, 0);
|
|
assert(false);
|
|
} catch (int) {
|
|
check_invariant(m);
|
|
// In libc++, the flat_set is cleared
|
|
LIBCPP_ASSERT(m.size() == 0);
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
template <class F>
|
|
void test_insert_range_exception_guarantee([[maybe_unused]] F&& insert_function) {
|
|
#ifndef TEST_HAS_NO_EXCEPTIONS
|
|
using KeyContainer = EmplaceUnsafeContainer<int>;
|
|
using M = std::flat_set<int, std::ranges::less, KeyContainer>;
|
|
test_allocator_statistics stats;
|
|
KeyContainer a{1, 2, 3, 4};
|
|
M m(std::sorted_unique, std::move(a));
|
|
|
|
std::vector<int> newValues = {0, 1, 5, 6, 7, 8};
|
|
stats.throw_after = 1;
|
|
try {
|
|
insert_function(m, newValues);
|
|
assert(false);
|
|
} catch (int) {
|
|
check_invariant(m);
|
|
// In libc++, we clear if anything goes wrong when inserting a range
|
|
LIBCPP_ASSERT(m.size() == 0);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
template <class F>
|
|
void test_erase_exception_guarantee([[maybe_unused]] F&& erase_function) {
|
|
#ifndef TEST_HAS_NO_EXCEPTIONS
|
|
{
|
|
// key erase throws
|
|
using KeyContainer = ThrowOnEraseContainer<int>;
|
|
using M = std::flat_set<int, TransparentComparator, KeyContainer>;
|
|
|
|
KeyContainer a{1, 2, 3, 4};
|
|
M m(std::sorted_unique, std::move(a));
|
|
try {
|
|
erase_function(m, 3);
|
|
assert(false);
|
|
} catch (int) {
|
|
check_invariant(m);
|
|
// In libc++, we clear if anything goes wrong when erasing
|
|
LIBCPP_ASSERT(m.size() == 0);
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
#endif // TEST_STD_CONTAINERS_CONTAINER_ADAPTORS_FLAT_SET_HELPERS_H
|