libstdc++-v3/testsuite/23_containers/multiset/modifiers/insert/1.cc

   1 // 1999-06-24 bkoz
   2
   3 // Copyright (C) 1999, 2004, 2005 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 2, 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 COPYING.  If not, write to the Free
  18 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  19 // USA.
  20
  21 // 23.3.4 template class multiset
  22
  23 #include <sstream>
  24 #include <iterator>
  25 #include <set>
  26 #include <algorithm>
  27 #include <testsuite_hooks.h>
  28
  29 namespace std
  30 {
  31   std::ostream&
  32   operator<<(std::ostream& os, std::pair<int, int> const& p)
  33   { return os << p.first << ' ' << p.second; }
  34 }
  35
  36 bool
  37 operator<(std::pair<int, int> const& lhs, std::pair<int, int> const& rhs)
  38 { return lhs.first < rhs.first; }
  39
  40 int main ()
  41 {
  42   bool test __attribute__((unused)) = true;
  43   typedef std::multiset<std::pair<int, int> >::iterator iterator;
  44   std::pair<int, int> p(69, 0);
  45   std::multiset<std::pair<int, int> > s;
  46
  47   for (p.second = 0; p.second < 5; ++p.second)
  48     s.insert(p);
  49   for (iterator it = s.begin(); it != s.end(); ++it)
  50     if (it->second < 5)
  51       {
  52         s.insert(it, p);
  53         ++p.second;
  54       }
  55
  56   std::ostringstream stream;
  57   std::copy(s.begin(), s.end(),
  58             std::ostream_iterator<std::pair<int, int> >(stream, "\n"));
  59   const std::string expected("69 0\n69 1\n69 2\n69 3\n69 4\n"
  60                              "69 5\n69 6\n69 7\n69 8\n69 9\n");
  61   std::string tested(stream.str());
  62   VERIFY( tested == expected );
  63
  64   return 0;
  65 }