1 // { dg-do compile } 2 3 // Copyright (C) 2007-2021 Free Software Foundation, Inc. 4 // 5 // This file is part of the GNU ISO C++ Library. This library is free 6 // software; you can redistribute it and/or modify it under the 7 // terms of the GNU General Public License as published by the 8 // Free Software Foundation; either version 3, or (at your option) 9 // any later version. 10 // 11 // This library is distributed in the hope that it will be useful, 12 // but WITHOUT ANY WARRANTY; without even the implied warranty of 13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 // GNU General Public License for more details. 15 // 16 // You should have received a copy of the GNU General Public License along 17 // with this library; see the file COPYING3. If not see 18 // <http://www.gnu.org/licenses/>. 19 // 20 21 #include <map> 22 23 // libstdc++/31440 24 struct DagNode 25 { }; 26 27 class MemoTable 28 { 29 public: 30 void memoRewrite(); 31 32 private: 33 struct dagNodeLt; 34 class MemoMap; 35 36 MemoMap* memoMap; 37 }; 38 39 struct MemoTable::dagNodeLt 40 { 41 bool operator()(const DagNode*, const DagNode*) const; 42 }; 43 44 class MemoTable::MemoMap 45 : public std::map<DagNode*, DagNode*, MemoTable::dagNodeLt> 46 { }; 47 48 void memoRewrite()49MemoTable::memoRewrite() 50 { 51 memoMap->find(0); 52 } 53