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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
// <flat_map>
// mapped_type& at(const key_type& k);
// const mapped_type& at(const key_type& k) const;
#include <cassert>
#include <deque>
#include <flat_map>
#include <functional>
#include <stdexcept>
#include <type_traits>
#include <vector>
#include "MinSequenceContainer.h"
#include "min_allocator.h"
#include "test_macros.h"
template <class KeyContainer, class ValueContainer>
constexpr void test() {
using P = std::pair<int, double>;
P ar[] = {
P(1, 1.5),
P(2, 2.5),
P(3, 3.5),
P(4, 4.5),
P(5, 5.5),
P(7, 7.5),
P(8, 8.5),
};
const int one = 1;
{
std::flat_map<int, double, std::less<int>, KeyContainer, ValueContainer> m(ar, ar + sizeof(ar) / sizeof(ar[0]));
ASSERT_SAME_TYPE(decltype(m.at(one)), double&);
assert(m.size() == 7);
assert(m.at(one) == 1.5);
m.at(1) = -1.5;
assert(m.at(1) == -1.5);
assert(m.at(2) == 2.5);
assert(m.at(3) == 3.5);
assert(m.at(4) == 4.5);
assert(m.at(5) == 5.5);
#ifndef TEST_HAS_NO_EXCEPTIONS
if (!TEST_IS_CONSTANT_EVALUATED) {
try {
TEST_IGNORE_NODISCARD m.at(6);
assert(false);
} catch (std::out_of_range&) {
}
}
#endif
assert(m.at(7) == 7.5);
assert(m.at(8) == 8.5);
assert(m.size() == 7);
}
{
const std::flat_map<int, double, std::less<int>, KeyContainer, ValueContainer> m(
ar, ar + sizeof(ar) / sizeof(ar[0]));
ASSERT_SAME_TYPE(decltype(m.at(one)), const double&);
assert(m.size() == 7);
assert(m.at(one) == 1.5);
assert(m.at(2) == 2.5);
assert(m.at(3) == 3.5);
assert(m.at(4) == 4.5);
assert(m.at(5) == 5.5);
#ifndef TEST_HAS_NO_EXCEPTIONS
if (!TEST_IS_CONSTANT_EVALUATED) {
try {
TEST_IGNORE_NODISCARD m.at(6);
assert(false);
} catch (std::out_of_range&) {
}
}
#endif
assert(m.at(7) == 7.5);
assert(m.at(8) == 8.5);
assert(m.size() == 7);
}
}
constexpr bool test() {
test<std::vector<int>, std::vector<double>>();
#ifndef __cpp_lib_constexpr_deque
if (!TEST_IS_CONSTANT_EVALUATED)
#endif
{
test<std::deque<int>, std::vector<double>>();
}
test<MinSequenceContainer<int>, MinSequenceContainer<double>>();
test<std::vector<int, min_allocator<int>>, std::vector<double, min_allocator<double>>>();
return true;
}
int main(int, char**) {
test();
#if TEST_STD_VER >= 26
static_assert(test());
#endif
return 0;
}
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