1 //===----------------------------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 // UNSUPPORTED: c++03 10 11 // <functional> 12 13 // See https://bugs.llvm.org/show_bug.cgi?id=20002 14 15 #include <functional> 16 #include <type_traits> 17 18 #include "test_macros.h" 19 20 using Fn = std::function<void()>; 21 struct S : public std::function<void()> { using function::function; }; 22 main(int,char **)23int main(int, char**) { 24 S s( [](){} ); 25 S f1( s ); 26 #if TEST_STD_VER <= 14 27 S f2(std::allocator_arg, std::allocator<int>{}, s); 28 #endif 29 30 return 0; 31 } 32