1 /* Copyright 2012-2023 Free Software Foundation, Inc. 2 This program is free software; you can redistribute it and/or modify 3 it under the terms of the GNU General Public License as published by 4 the Free Software Foundation; either version 3 of the License, or 5 (at your option) any later version. 6 7 This program is distributed in the hope that it will be useful, 8 but WITHOUT ANY WARRANTY; without even the implied warranty of 9 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 10 GNU General Public License for more details. 11 12 You should have received a copy of the GNU General Public License 13 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 14 15 #include <iostream> 16 using namespace std; 17 18 class c1; 19 20 void foo (); 21 22 int 23 main () 24 { 25 foo (); 26 return 0; 27 } 28 29 void 30 foo () 31 { 32 c1 *p = 0; 33 } 34 35 class b1 { public: int x; }; 36 37 class c1 : public b1 38 { 39 public: 40 using b1::x; 41 c1 () {} 42 }; 43