libstdc++-v3/testsuite/23_containers/unordered_multimap/requirements/53339.cc

   1 // { dg-do compile { target c++11 } }
   2
   3 // Copyright (C) 2012-2025 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 #include <unordered_map>
  21
  22 struct LinkedHashMap
  23 {
  24   struct Entry;
  25
  26   typedef std::unordered_multimap<int, Entry> Storage;
  27   typedef Storage::iterator EntryPtr;
  28
  29   struct Entry
  30   {
  31     EntryPtr prev, next;
  32   };
  33 };