libstdc++-v3/testsuite/23_containers/map/operators/1_neg.cc

   1 // { dg-do compile }
   2
   3 // Copyright (C) 2000-2025 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 // 23.3.4 template class multiset negative tests
  21 // 2000-09-07 bgarcia@laurelnetworks.com
  22
  23 #include <map>
  24 #include <string>
  25
  26 // libstdc++/86: map & set iterator comparisons are not type-safe
  27 void test01()
  28 {
  29   std::map<unsigned int, int> mapByIndex;
  30   std::map<std::string, unsigned> mapByName;
  31
  32   mapByIndex.insert(std::pair<unsigned, int>(0, 1));
  33   mapByIndex.insert(std::pair<unsigned, int>(6, 5));
  34
  35   std::map<unsigned, int>::iterator itr(mapByIndex.begin());
  36
  37   // NB: notice, it's not mapByIndex!!
  38   itr != mapByName.end(); // { dg-error "no match" }
  39   itr == mapByName.end(); // { dg-error "no match" }
  40 }