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 // shared_ptr
13 
14 // template<class T>
15 // bool
16 // atomic_is_lock_free(const shared_ptr<T>* p);
17 
18 #include <memory>
19 #include <cassert>
20 
main()21 int main()
22 {
23 #if __has_feature(cxx_atomic)
24     {
25         const std::shared_ptr<int> p(new int(3));
26         assert(std::atomic_is_lock_free(&p) == false);
27     }
28 #endif
29 }
30