| //===----------------------------------------------------------------------===// |
| // |
| // 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. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // UNSUPPORTED: libcpp-has-no-threads |
| |
| // <atomic> |
| |
| // template <class T> |
| // bool |
| // atomic_is_lock_free(const volatile atomic<T>* obj); |
| // |
| // template <class T> |
| // bool |
| // atomic_is_lock_free(const atomic<T>* obj); |
| |
| #include <atomic> |
| #include <cassert> |
| |
| #include "atomic_helpers.h" |
| |
| template <class T> |
| struct TestFn { |
| void operator()() const { |
| typedef std::atomic<T> A; |
| A t; |
| bool b1 = std::atomic_is_lock_free(static_cast<const A*>(&t)); |
| volatile A vt; |
| bool b2 = std::atomic_is_lock_free(static_cast<const volatile A*>(&vt)); |
| assert(b1 == b2); |
| } |
| }; |
| |
| struct A |
| { |
| char _[4]; |
| }; |
| |
| int main() |
| { |
| TestFn<A>()(); |
| TestEachAtomicType<TestFn>()(); |
| } |