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 shared_future<R> 15 16 // ~shared_future(); 17 18 #include <future> 19 #include <cassert> 20 21 #include "../test_allocator.h" 22 23 int main() 24 { 25 assert(test_alloc_base::count == 0); 26 { 27 typedef int T; 28 std::shared_future<T> f; 29 { 30 std::promise<T> p(std::allocator_arg, test_allocator<T>()); 31 assert(test_alloc_base::count == 1); 32 f = p.get_future(); 33 assert(test_alloc_base::count == 1); 34 assert(f.valid()); 35 } 36 assert(test_alloc_base::count == 1); 37 assert(f.valid()); 38 } 39 assert(test_alloc_base::count == 0); 40 { 41 typedef int& T; 42 std::shared_future<T> f; 43 { 44 std::promise<T> p(std::allocator_arg, test_allocator<int>()); 45 assert(test_alloc_base::count == 1); 46 f = p.get_future(); 47 assert(test_alloc_base::count == 1); 48 assert(f.valid()); 49 } 50 assert(test_alloc_base::count == 1); 51 assert(f.valid()); 52 } 53 assert(test_alloc_base::count == 0); 54 { 55 typedef void T; 56 std::shared_future<T> f; 57 { 58 std::promise<T> p(std::allocator_arg, test_allocator<T>()); 59 assert(test_alloc_base::count == 1); 60 f = p.get_future(); 61 assert(test_alloc_base::count == 1); 62 assert(f.valid()); 63 } 64 assert(test_alloc_base::count == 1); 65 assert(f.valid()); 66 } 67 assert(test_alloc_base::count == 0); 68 } 69
