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// <future> 11 12// enum class launch 13// { 14// async = 1, 15// deferred = 2, 16// any = async | deferred 17// }; 18 19#include <future> 20#include <cassert> 21 22int main() 23{ 24#ifdef _LIBCPP_HAS_NO_STRONG_ENUMS 25 static_assert(static_cast<int>(std::launch::any) == 26 (static_cast<int>(std::launch::async) | static_cast<int>(std::launch::deferred)), ""); 27#else 28 static_assert(std::launch::any == (std::launch::async | std::launch::deferred), ""); 29 static_assert(std::launch(0) == (std::launch::async & std::launch::deferred), ""); 30 static_assert(std::launch::any == (std::launch::async ^ std::launch::deferred), ""); 31 static_assert(std::launch::deferred == ~std::launch::async, ""); 32 std::launch x = std::launch::async; 33 x &= std::launch::deferred; 34 assert(x == std::launch(0)); 35 x = std::launch::async; 36 x |= std::launch::deferred; 37 assert(x == std::launch::any); 38 x ^= std::launch::deferred; 39 assert(x == std::launch::async); 40#endif 41 static_assert(static_cast<int>(std::launch::async) == 1, ""); 42 static_assert(static_cast<int>(std::launch::deferred) == 2, ""); 43} 44