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 // UNSUPPORTED: libcpp-has-no-threads
11 //
12 // This test uses new symbols that were not defined in the libc++ shipped on
13 // darwin11 and darwin12:
14 // XFAIL: with_system_cxx_lib=x86_64-apple-darwin11
15 // XFAIL: with_system_cxx_lib=x86_64-apple-darwin12
16
17 // <memory>
18
19 // shared_ptr
20
21 // template <class T>
22 // void
23 // atomic_store_explicit(shared_ptr<T>* p, shared_ptr<T> r, memory_order mo)
24
25 #include <memory>
26 #include <cassert>
27
main()28 int main()
29 {
30 #if __has_feature(cxx_atomic)
31 {
32 std::shared_ptr<int> p;
33 std::shared_ptr<int> r(new int(3));
34 std::atomic_store_explicit(&p, r, std::memory_order_seq_cst);
35 assert(*p == *r);
36 }
37 #endif
38 }
39