map_operators.cc

gcc3.2.1源代码

// 2000-09-07 [e-mail]

// Copyright (C) 2000, 2001 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING.  If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.

// 23.3.4 template class multiset

#include <map>
#include <string>
#include <iostream>

// { dg-do compile }

// libstdc++/86: map & set iterator comparisons are not type-safe
void test01()
{
  bool test = true;
  std::map<unsigned int, int> mapByIndex;
  std::map<std::string, unsigned> mapByName;
  
  mapByIndex.insert(std::pair<unsigned, int>(0, 1));
  mapByIndex.insert(std::pair<unsigned, int>(6, 5));
  
  std::map<unsigned, int>::iterator itr(mapByIndex.begin());

  // NB: notice, it's not mapByIndex!!
  test &= itr != mapByName.end(); // { dg-error "no" } 
  test &= itr == mapByName.end(); // { dg-error "no" } 
}
 
// http://gcc.gnu.org/ml/libstdc++/2000-11/msg00093.html
void test02()
{
  typedef std::map<int,const int> MapInt;
  
  MapInt m;
  
  for (unsigned i=0;i<10;++i)
    m.insert(MapInt::value_type(i,i));
  
  for (MapInt::const_iterator i=m.begin();i!=m.end();++i)
    std::cerr << i->second << ' ';
  
  for (MapInt::const_iterator i=m.begin();m.end()!=i;++i)
    std::cerr << i->second << ' ';
}

int main()
{
  test01();
  test02();

  return 0;
}