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 Integral> 13// Integral 14// atomic_fetch_and_explicit(volatile atomic<Integral>* obj, Integral op); 15// 16// template <class Integral> 17// Integral 18// atomic_fetch_and_explicit(atomic<Integral>* obj, Integral op); 19 20#include <atomic> 21#include <type_traits> 22#include <cassert> 23 24template <class T> 25void 26test() 27{ 28 { 29 typedef std::atomic<T> A; 30 A t; 31 std::atomic_init(&t, T(1)); 32 assert(std::atomic_fetch_and_explicit(&t, T(2), 33 std::memory_order_seq_cst) == T(1)); 34 assert(t == T(0)); 35 } 36 { 37 typedef std::atomic<T> A; 38 volatile A t; 39 std::atomic_init(&t, T(3)); 40 assert(std::atomic_fetch_and_explicit(&t, T(2), 41 std::memory_order_seq_cst) == T(3)); 42 assert(t == T(2)); 43 } 44} 45 46int main() 47{ 48 test<char>(); 49 test<signed char>(); 50 test<unsigned char>(); 51 test<short>(); 52 test<unsigned short>(); 53 test<int>(); 54 test<unsigned int>(); 55 test<long>(); 56 test<unsigned long>(); 57 test<long long>(); 58 test<unsigned long long>(); 59 test<wchar_t>(); 60#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS 61 test<char16_t>(); 62 test<char32_t>(); 63#endif // _LIBCPP_HAS_NO_UNICODE_CHARS 64} 65