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 12 // <future> 13 14 // class promise<R> 15 16 // void promise::set_value(const R& r); 17 18 #include <future> 19 #include <cassert> 20 21 struct A 22 { 23 A() {} 24 A(const A&) {throw 10;} 25 }; 26 27 int main() 28 { 29 { 30 typedef int T; 31 T i = 3; 32 std::promise<T> p; 33 std::future<T> f = p.get_future(); 34 p.set_value(i); 35 ++i; 36 assert(f.get() == 3); 37 --i; 38 try 39 { 40 p.set_value(i); 41 assert(false); 42 } 43 catch (const std::future_error& e) 44 { 45 assert(e.code() == make_error_code(std::future_errc::promise_already_satisfied)); 46 } 47 } 48 { 49 typedef A T; 50 T i; 51 std::promise<T> p; 52 std::future<T> f = p.get_future(); 53 try 54 { 55 p.set_value(i); 56 assert(false); 57 } 58 catch (int j) 59 { 60 assert(j == 10); 61 } 62 } 63 } 64
