29 lines · cpp
1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9// <memory>10 11// template<class T> class weak_ptr12 13// weak_ptr();14 15#include <memory>16#include <cassert>17 18#include "test_macros.h"19 20struct A;21 22int main(int, char**)23{24 std::weak_ptr<A> p;25 assert(p.use_count() == 0);26 27 return 0;28}29