1 //===----------------------------------------------------------------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9
10 // <memory>
11
12 // template<class T> class weak_ptr
13
14 // weak_ptr();
15
16 #include <memory>
17 #include <cassert>
18
19 struct A;
20
main()21 int main()
22 {
23 std::weak_ptr<A> p;
24 assert(p.use_count() == 0);
25 }
26