uses_allocator.pass.cpp (1120B)
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 // This test is marked XFAIL and not UNSUPPORTED because the non-variadic 13 // declaration of packaged_task is available in C++03. Therefore the test 14 // should fail because the static_assert fires and not because std::packaged_task 15 // in undefined. 16 // XFAIL: c++98, c++03 17 18 // <future> 19 // REQUIRES: c++11 || c++14 20 // packaged_task allocator support was removed in C++17 (LWG 2976) 21 22 // class packaged_task<R(ArgTypes...)> 23 24 // template <class Callable, class Alloc> 25 // struct uses_allocator<packaged_task<Callable>, Alloc> 26 // : true_type { }; 27 28 #include <future> 29 #include "test_allocator.h" 30 31 int main() 32 { 33 static_assert((std::uses_allocator<std::packaged_task<double(int, char)>, test_allocator<int> >::value), ""); 34 }