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 // class promise<R> 13 14 // template <class Allocator> 15 // promise(allocator_arg_t, const Allocator& a); 16 17 #include <future> 18 #include <cassert> 19 20 #include "../test_allocator.h" 21 main()22int main() 23 { 24 assert(test_alloc_base::count == 0); 25 { 26 std::promise<int> p(std::allocator_arg, test_allocator<int>()); 27 assert(test_alloc_base::count == 1); 28 std::future<int> f = p.get_future(); 29 assert(test_alloc_base::count == 1); 30 assert(f.valid()); 31 } 32 assert(test_alloc_base::count == 0); 33 { 34 std::promise<int&> p(std::allocator_arg, test_allocator<int>()); 35 assert(test_alloc_base::count == 1); 36 std::future<int&> f = p.get_future(); 37 assert(test_alloc_base::count == 1); 38 assert(f.valid()); 39 } 40 assert(test_alloc_base::count == 0); 41 { 42 std::promise<void> p(std::allocator_arg, test_allocator<void>()); 43 assert(test_alloc_base::count == 1); 44 std::future<void> f = p.get_future(); 45 assert(test_alloc_base::count == 1); 46 assert(f.valid()); 47 } 48 assert(test_alloc_base::count == 0); 49 } 50