libstdc++-v3/testsuite/23_containers/map/operations/31440.cc

   1 // { dg-do compile }
   2
   3 // Copyright (C) 2007-2017 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*);
  42 };
  43
  44 class MemoTable::MemoMap
  45 : public std::map<DagNode*, DagNode*, MemoTable::dagNodeLt>
  46 { };
  47
  48 void
  49 MemoTable::memoRewrite()
  50 {
  51   memoMap->find(0);
  52 }