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-no-exceptions 11 // UNSUPPORTED: libcpp-has-no-threads 12 // UNSUPPORTED: c++98, c++03 13 14 // <future> 15 16 // class shared_future<R> 17 18 // ~shared_future(); 19 20 #include <future> 21 #include <cassert> 22 23 #include "test_allocator.h" 24 25 int main() 26 { 27 assert(test_alloc_base::alloc_count == 0); 28 { 29 typedef int T; 30 std::shared_future<T> f; 31 { 32 std::promise<T> p(std::allocator_arg, test_allocator<T>()); 33 assert(test_alloc_base::alloc_count == 1); 34 f = p.get_future(); 35 assert(test_alloc_base::alloc_count == 1); 36 assert(f.valid()); 37 } 38 assert(test_alloc_base::alloc_count == 1); 39 assert(f.valid()); 40 } 41 assert(test_alloc_base::alloc_count == 0); 42 { 43 typedef int& T; 44 std::shared_future<T> f; 45 { 46 std::promise<T> p(std::allocator_arg, test_allocator<int>()); 47 assert(test_alloc_base::alloc_count == 1); 48 f = p.get_future(); 49 assert(test_alloc_base::alloc_count == 1); 50 assert(f.valid()); 51 } 52 assert(test_alloc_base::alloc_count == 1); 53 assert(f.valid()); 54 } 55 assert(test_alloc_base::alloc_count == 0); 56 { 57 typedef void T; 58 std::shared_future<T> f; 59 { 60 std::promise<T> p(std::allocator_arg, test_allocator<T>()); 61 assert(test_alloc_base::alloc_count == 1); 62 f = p.get_future(); 63 assert(test_alloc_base::alloc_count == 1); 64 assert(f.valid()); 65 } 66 assert(test_alloc_base::alloc_count == 1); 67 assert(f.valid()); 68 } 69 assert(test_alloc_base::alloc_count == 0); 70 } 71
