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 packaged_task<R(ArgTypes...)> 15 16// packaged_task(packaged_task&& other); 17 18#include <future> 19#include <cassert> 20 21class A 22{ 23 long data_; 24 25public: 26 explicit A(long i) : data_(i) {} 27 28 long operator()(long i, long j) const {return data_ + i + j;} 29}; 30 31int main() 32{ 33 { 34 std::packaged_task<double(int, char)> p0(A(5)); 35 std::packaged_task<double(int, char)> p = std::move(p0); 36 assert(!p0.valid()); 37 assert(p.valid()); 38 std::future<double> f = p.get_future(); 39 p(3, 'a'); 40 assert(f.get() == 105.0); 41 } 42 { 43 std::packaged_task<double(int, char)> p0; 44 std::packaged_task<double(int, char)> p = std::move(p0); 45 assert(!p0.valid()); 46 assert(!p.valid()); 47 } 48} 49