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 // <atomic> 11 12 // template <class T> 13 // T 14 // atomic_load_explicit(const volatile atomic<T>* obj, memory_order m); 15 // 16 // template <class T> 17 // T 18 // atomic_load_explicit(const atomic<T>* obj, memory_order m); 19 20 #include <atomic> 21 #include <type_traits> 22 #include <cassert> 23 24 template <class T> 25 void 26 test() 27 { 28 typedef std::atomic<T> A; 29 A t; 30 std::atomic_init(&t, T(1)); 31 assert(std::atomic_load_explicit(&t, std::memory_order_seq_cst) == T(1)); 32 volatile A vt; 33 std::atomic_init(&vt, T(2)); 34 assert(std::atomic_load_explicit(&vt, std::memory_order_seq_cst) == T(2)); 35 } 36 37 struct A 38 { 39 int i; 40 41 explicit A(int d = 0) : i(d) {} 42 43 friend bool operator==(const A& x, const A& y) 44 {return x.i == y.i;} 45 }; 46 47 int main() 48 { 49 test<A>(); 50 test<char>(); 51 test<signed char>(); 52 test<unsigned char>(); 53 test<short>(); 54 test<unsigned short>(); 55 test<int>(); 56 test<unsigned int>(); 57 test<long>(); 58 test<unsigned long>(); 59 test<long long>(); 60 test<unsigned long long>(); 61 test<wchar_t>(); 62 #ifndef _LIBCPP_HAS_NO_UNICODE_CHARS 63 test<char16_t>(); 64 test<char32_t>(); 65 #endif // _LIBCPP_HAS_NO_UNICODE_CHARS 66 test<int*>(); 67 test<const int*>(); 68 } 69
