// { dg-do compile { target c++11 } } // Copyright (C) 2011-2019 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the // terms of the GNU General Public License as published by the // Free Software Foundation; either version 3, or (at your option) // any later version. // // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License along // with this library; see the file COPYING3. If not see // . // libstdc++/60594 #include #include struct bar; using F = std::function; // check for copy constructible and assignable while 'bar' is incomplete constexpr int c = std::is_copy_constructible::value; constexpr int a = std::is_copy_assignable::value; struct bar { }; bar func(); void test() { F g{ &func }; g = func; }