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(nullptr_t); 14 15 // This test runs in C++03, but we have deprecated using std::function in C++03. 16 // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS 17 18 #include <functional> 19 #include <cassert> 20 21 #include "test_macros.h" 22 23 int main(int, char**) 24 { 25 std::function<int(int)> f(nullptr); 26 assert(!f); 27 28 return 0; 29 } 30