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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
//
//===----------------------------------------------------------------------===//
// <vector>
// reference at(size_type n); // constexpr since C++20
#include <cassert>
#include <memory>
#include <vector>
#include "min_allocator.h"
#include "test_allocator.h"
#include "test_macros.h"
#ifndef TEST_HAS_NO_EXCEPTIONS
# include <stdexcept>
#endif
template <typename Allocator>
TEST_CONSTEXPR_CXX20 void test() {
using C = std::vector<bool, Allocator>;
using reference = typename C::reference;
bool a[] = {1, 0, 1, 0, 1};
C v(a, a + sizeof(a) / sizeof(a[0]));
ASSERT_SAME_TYPE(reference, decltype(v.at(0)));
assert(v.at(0) == true);
assert(v.at(1) == false);
assert(v.at(2) == true);
assert(v.at(3) == false);
assert(v.at(4) == true);
v.at(1) = 1;
assert(v.at(1) == true);
v.at(3) = 1;
assert(v.at(3) == true);
}
template <typename Allocator>
void test_exception() {
#ifndef TEST_HAS_NO_EXCEPTIONS
{
bool a[] = {1, 0, 1, 1};
using C = std::vector<bool, Allocator>;
C v(a, a + sizeof(a) / sizeof(a[0]));
try {
TEST_IGNORE_NODISCARD v.at(4);
assert(false);
} catch (std::out_of_range const&) {
// pass
} catch (...) {
assert(false);
}
try {
TEST_IGNORE_NODISCARD v.at(5);
assert(false);
} catch (std::out_of_range const&) {
// pass
} catch (...) {
assert(false);
}
try {
TEST_IGNORE_NODISCARD v.at(6);
assert(false);
} catch (std::out_of_range const&) {
// pass
} catch (...) {
assert(false);
}
try {
using size_type = typename C::size_type;
TEST_IGNORE_NODISCARD v.at(static_cast<size_type>(-1));
assert(false);
} catch (std::out_of_range const&) {
// pass
} catch (...) {
assert(false);
}
}
{
std::vector<bool, Allocator> v;
try {
TEST_IGNORE_NODISCARD v.at(0);
assert(false);
} catch (std::out_of_range const&) {
// pass
} catch (...) {
assert(false);
}
}
#endif
}
TEST_CONSTEXPR_CXX20 bool tests() {
test<std::allocator<bool> >();
test<min_allocator<bool> >();
test<test_allocator<bool> >();
return true;
}
void test_exceptions() {
test_exception<std::allocator<bool> >();
test_exception<min_allocator<bool> >();
test_exception<test_allocator<bool> >();
}
int main(int, char**) {
tests();
test_exceptions();
#if TEST_STD_VER >= 20
static_assert(tests());
#endif
return 0;
}
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