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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
//
//===----------------------------------------------------------------------===//
// <memory>
// unique_ptr
// test reset
#include <memory>
#include <cassert>
#include "test_macros.h"
#include "unique_ptr_test_helper.h"
template <bool IsArray>
TEST_CONSTEXPR_CXX23 void test_reset_pointer() {
typedef typename std::conditional<IsArray, A[], A>::type VT;
const int expect_alive = IsArray ? 3 : 1;
#if TEST_STD_VER >= 11
{
using U = std::unique_ptr<VT>;
U u;
((void)u);
ASSERT_NOEXCEPT(u.reset((A*)nullptr));
}
#endif
{
std::unique_ptr<VT> p(newValue<VT>(expect_alive));
if (!TEST_IS_CONSTANT_EVALUATED)
assert(A::count == expect_alive);
A* i = p.get();
assert(i != nullptr);
A* new_value = newValue<VT>(expect_alive);
if (!TEST_IS_CONSTANT_EVALUATED)
assert(A::count == (expect_alive * 2));
p.reset(new_value);
if (!TEST_IS_CONSTANT_EVALUATED)
assert(A::count == expect_alive);
assert(p.get() == new_value);
}
if (!TEST_IS_CONSTANT_EVALUATED)
assert(A::count == 0);
{
std::unique_ptr<const VT> p(newValue<const VT>(expect_alive));
if (!TEST_IS_CONSTANT_EVALUATED)
assert(A::count == expect_alive);
const A* i = p.get();
assert(i != nullptr);
A* new_value = newValue<VT>(expect_alive);
if (!TEST_IS_CONSTANT_EVALUATED)
assert(A::count == (expect_alive * 2));
p.reset(new_value);
if (!TEST_IS_CONSTANT_EVALUATED)
assert(A::count == expect_alive);
assert(p.get() == new_value);
}
if (!TEST_IS_CONSTANT_EVALUATED)
assert(A::count == 0);
}
template <bool IsArray>
TEST_CONSTEXPR_CXX23 void test_reset_nullptr() {
typedef typename std::conditional<IsArray, A[], A>::type VT;
const int expect_alive = IsArray ? 3 : 1;
#if TEST_STD_VER >= 11
{
using U = std::unique_ptr<VT>;
U u;
((void)u);
ASSERT_NOEXCEPT(u.reset(nullptr));
}
#endif
{
std::unique_ptr<VT> p(newValue<VT>(expect_alive));
if (!TEST_IS_CONSTANT_EVALUATED)
assert(A::count == expect_alive);
A* i = p.get();
assert(i != nullptr);
p.reset(nullptr);
if (!TEST_IS_CONSTANT_EVALUATED)
assert(A::count == 0);
assert(p.get() == nullptr);
}
if (!TEST_IS_CONSTANT_EVALUATED)
assert(A::count == 0);
}
template <bool IsArray>
TEST_CONSTEXPR_CXX23 void test_reset_no_arg() {
typedef typename std::conditional<IsArray, A[], A>::type VT;
const int expect_alive = IsArray ? 3 : 1;
#if TEST_STD_VER >= 11
{
using U = std::unique_ptr<VT>;
U u;
((void)u);
ASSERT_NOEXCEPT(u.reset());
}
#endif
{
std::unique_ptr<VT> p(newValue<VT>(expect_alive));
if (!TEST_IS_CONSTANT_EVALUATED)
assert(A::count == expect_alive);
A* i = p.get();
assert(i != nullptr);
p.reset();
if (!TEST_IS_CONSTANT_EVALUATED)
assert(A::count == 0);
assert(p.get() == nullptr);
}
if (!TEST_IS_CONSTANT_EVALUATED)
assert(A::count == 0);
}
TEST_CONSTEXPR_CXX23 bool test() {
{
test_reset_pointer</*IsArray*/ false>();
test_reset_nullptr<false>();
test_reset_no_arg<false>();
}
{
test_reset_pointer</*IsArray*/true>();
test_reset_nullptr<true>();
test_reset_no_arg<true>();
}
return true;
}
int main(int, char**) {
test();
#if TEST_STD_VER >= 23
static_assert(test());
#endif
return 0;
}
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