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

49 lines
1.1 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 reset
#include <memory>
#include <cassert>
#include "test_macros.h"
#include "unique_ptr_test_helper.h"
int main(int, char**) {
{
std::unique_ptr<A> p(new A);
assert(A::count == 1);
assert(B::count == 0);
A* i = p.get();
assert(i != nullptr);
p.reset(new B);
assert(A::count == 1);
assert(B::count == 1);
}
assert(A::count == 0);
assert(B::count == 0);
{
std::unique_ptr<A> p(new B);
assert(A::count == 1);
assert(B::count == 1);
A* i = p.get();
assert(i != nullptr);
p.reset(new B);
assert(A::count == 1);
assert(B::count == 1);
}
assert(A::count == 0);
assert(B::count == 0);
return 0;
}