1 //===----------------------------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 // UNSUPPORTED: c++03, c++11, c++14, c++17 10 11 // <atomic> 12 13 // explicit atomic_ref(T&); 14 15 #include <atomic> 16 #include <type_traits> 17 18 #include "atomic_helpers.h" 19 #include "test_macros.h" 20 21 template <typename T> 22 struct TestDeduction { operator ()TestDeduction23 void operator()() const { 24 T x(T(0)); 25 std::atomic_ref a(x); 26 ASSERT_SAME_TYPE(decltype(a), std::atomic_ref<T>); 27 } 28 }; 29 main(int,char **)30int main(int, char**) { 31 TestEachAtomicType<TestDeduction>()(); 32 return 0; 33 } 34