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 // ... assertion fails line 31 12 13 // <atomic> 14 15 // template <class T> 16 // T 17 // atomic_load_explicit(const volatile atomic<T>* obj, memory_order m); 18 // 19 // template <class T> 20 // T 21 // atomic_load_explicit(const atomic<T>* obj, memory_order m); 22 23 #include <atomic> 24 #include <type_traits> 25 #include <cassert> 26 27 template <class T> 28 void 29 test() 30 { 31 typedef std::atomic<T> A; 32 A t; 33 std::atomic_init(&t, T(1)); 34 assert(std::atomic_load_explicit(&t, std::memory_order_seq_cst) == T(1)); 35 volatile A vt; 36 std::atomic_init(&vt, T(2)); 37 assert(std::atomic_load_explicit(&vt, std::memory_order_seq_cst) == T(2)); 38 } 39 40 struct A 41 { 42 int i; 43 44 explicit A(int d = 0) noexcept {i=d;} 45 46 friend bool operator==(const A& x, const A& y) 47 {return x.i == y.i;} 48 }; 49 50 int main() 51 { 52 test<A>(); 53 test<char>(); 54 test<signed char>(); 55 test<unsigned char>(); 56 test<short>(); 57 test<unsigned short>(); 58 test<int>(); 59 test<unsigned int>(); 60 test<long>(); 61 test<unsigned long>(); 62 test<long long>(); 63 test<unsigned long long>(); 64 test<wchar_t>(); 65 #ifndef _LIBCPP_HAS_NO_UNICODE_CHARS 66 test<char16_t>(); 67 test<char32_t>(); 68 #endif // _LIBCPP_HAS_NO_UNICODE_CHARS 69 test<int*>(); 70 test<const int*>(); 71 } 72
