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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>
// shared_ptr
// template<class Y> void reset(Y* p);
#include <memory>
#include <cassert>
#include "reset_helper.h"
#include "test_macros.h"
struct B
{
static int count;
B() {++count;}
B(const B&) {++count;}
virtual ~B() {--count;}
};
int B::count = 0;
struct A
: public B
{
static int count;
A() {++count;}
A(const A& other) : B(other) {++count;}
~A() {--count;}
};
int A::count = 0;
struct Derived : A {};
static_assert( HasReset<std::shared_ptr<int>, int*>::value, "");
static_assert( HasReset<std::shared_ptr<A>, Derived*>::value, "");
static_assert(!HasReset<std::shared_ptr<A>, int*>::value, "");
#if TEST_STD_VER >= 17
static_assert( HasReset<std::shared_ptr<int[]>, int*>::value, "");
static_assert(!HasReset<std::shared_ptr<int[]>, int(*)[]>::value, "");
static_assert( HasReset<std::shared_ptr<int[5]>, int*>::value, "");
static_assert(!HasReset<std::shared_ptr<int[5]>, int(*)[5]>::value, "");
#endif
int main(int, char**)
{
{
std::shared_ptr<B> p(new B);
A* ptr = new A;
p.reset(ptr);
assert(A::count == 1);
assert(B::count == 1);
assert(p.use_count() == 1);
assert(p.get() == ptr);
}
assert(A::count == 0);
{
std::shared_ptr<B> p;
A* ptr = new A;
p.reset(ptr);
assert(A::count == 1);
assert(B::count == 1);
assert(p.use_count() == 1);
assert(p.get() == ptr);
}
assert(A::count == 0);
#if TEST_STD_VER > 14
{
std::shared_ptr<const A[]> p;
A* ptr = new A[8];
p.reset(ptr);
assert(A::count == 8);
assert(p.use_count() == 1);
assert(p.get() == ptr);
}
assert(A::count == 0);
#endif
return 0;
}
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