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libcxx_old/test/std/utilities/smartptr/unique.ptr/unique.ptr.class/unique.ptr.modifiers/release.pass.cpp

58 lines
1.2 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
//
//===----------------------------------------------------------------------===//
// <memory>
// unique_ptr
// test release
#include <memory>
#include <cassert>
#include "test_macros.h"
#include "unique_ptr_test_helper.h"
template <bool IsArray>
void test_basic() {
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.release());
}
#endif
{
std::unique_ptr<VT> p(newValue<VT>(expect_alive));
assert(A::count == expect_alive);
A* ap = p.get();
A* a = p.release();
assert(A::count == expect_alive);
assert(p.get() == nullptr);
assert(ap == a);
assert(a != nullptr);
if (IsArray)
delete[] a;
else
delete a;
assert(A::count == 0);
}
assert(A::count == 0);
}
int main(int, char**) {
test_basic</*IsArray*/ false>();
test_basic<true>();
return 0;
}