| //===----------------------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This test uses new symbols that were not defined in the libc++ shipped on |
| // darwin11 and darwin12: |
| // XFAIL: with_system_lib=x86_64-apple-darwin11 |
| // XFAIL: with_system_lib=x86_64-apple-darwin12 |
| |
| // <memory> |
| |
| // shared_ptr |
| |
| // template <class T> |
| // shared_ptr<T> |
| // atomic_exchange(shared_ptr<T>* p, shared_ptr<T> r) |
| |
| #include <memory> |
| #include <cassert> |
| |
| int main() |
| { |
| #if __has_feature(cxx_atomic) |
| { |
| std::shared_ptr<int> p(new int(4)); |
| std::shared_ptr<int> r(new int(3)); |
| r = std::atomic_exchange(&p, r); |
| assert(*p == 3); |
| assert(*r == 4); |
| } |
| #endif |
| } |
