libstdc++-v3/testsuite/23_containers/multimap/modifiers/erase/47628.cc

   1 // Copyright (C) 2011-2020 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8 //
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17 //
  18
  19 // { dg-do compile }
  20
  21 #include <map>
  22
  23 struct Key
  24 {
  25   Key() { }
  26
  27   Key(const Key&) { }
  28
  29   template<typename T>
  30     Key(const T&)
  31     { }
  32
  33   bool operator<(const Key&) const;
  34 };
  35
  36 #if __cplusplus < 201103L
  37 // libstdc++/47628
  38 void f()
  39 {
  40   typedef std::multimap<Key, int> MMap;
  41   MMap mm;
  42   mm.insert(MMap::value_type());
  43   MMap::iterator i = mm.begin();
  44   mm.erase(i);
  45 }
  46 #endif