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[thirdparty/gcc.git] / libstdc++-v3 / testsuite / 23_containers / multiset / modifiers / insert / 1.cc

// 1999-06-24 bkoz

// Copyright (C) 1999-2019 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 3, 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 COPYING3.  If not see
// <http://www.gnu.org/licenses/>.

// 23.3.4 template class multiset

#include <sstream>
#include <iterator>
#include <set>
#include <algorithm>
#include <testsuite_hooks.h>

namespace std 
{
  std::ostream& 
  operator<<(std::ostream& os, std::pair<int, int> const& p) 
  { return os << p.first << ' ' << p.second; }
}

bool 
operator<(std::pair<int, int> const& lhs, std::pair<int, int> const& rhs) 
{ return lhs.first < rhs.first; }

int main () 
{
  typedef std::multiset<std::pair<int, int> >::iterator iterator;
  std::pair<int, int> p(69, 0);
  std::multiset<std::pair<int, int> > s;

  for (p.second = 0; p.second < 5; ++p.second)
    s.insert(p);
  for (iterator it = s.begin(); it != s.end(); ++it)
    if (it->second < 5) 
      {
	s.insert(it, p);
	++p.second;
      }

  std::ostringstream stream;
  std::copy(s.begin(), s.end(), 
            std::ostream_iterator<std::pair<int, int> >(stream, "\n"));
  const std::string expected("69 0\n69 1\n69 2\n69 3\n69 4\n"
			     "69 5\n69 6\n69 7\n69 8\n69 9\n");
  std::string tested(stream.str());
  VERIFY( tested == expected );

  return 0;
}