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 // <functional> 10 11 // class function<R(ArgTypes...)> 12 13 // function(); 14 15 #include <functional> 16 #include <cassert> 17 18 int main(int, char**) 19 { 20 std::function<int(int)> f; 21 assert(!f); 22 23 return 0; 24 } 25