libstdc++-v3/testsuite/tr1/6_containers/unordered_multimap/find/multimap1.cc

   1 // { dg-do run }
   2
   3 // 2005-2-18  Matt Austern  <austern@apple.com>
   4 //
   5 // Copyright (C) 2005-2017 Free Software Foundation, Inc.
   6 //
   7 // This file is part of the GNU ISO C++ Library.  This library is free
   8 // software; you can redistribute it and/or modify it under the
   9 // terms of the GNU General Public License as published by the
  10 // Free Software Foundation; either version 3, or (at your option)
  11 // any later version.
  12 //
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17 //
  18 // You should have received a copy of the GNU General Public License along
  19 // with this library; see the file COPYING3.  If not see
  20 // <http://www.gnu.org/licenses/>.
  21
  22 // 6.3.4.6 unordered_multimap
  23 // find, equal_range, count
  24
  25 #include <string>
  26 #include <iterator>
  27 #include <algorithm>
  28 #include <utility>
  29 #include <tr1/unordered_map>
  30 #include "testsuite_hooks.h"
  31
  32 void test01()
  33 {
  34   typedef std::tr1::unordered_multimap<std::string, int> Map;
  35   typedef std::pair<const std::string, int> Pair;
  36
  37   Map m;
  38   VERIFY(m.empty());
  39
  40   m.insert(Pair("grape", 3));
  41   m.insert(Pair("durian", 8));
  42   m.insert(Pair("grape", 7));
  43
  44   Map::iterator i1 = m.find("grape");
  45   Map::iterator i2 = m.find("durian");
  46   Map::iterator i3 = m.find("kiwi");
  47
  48   VERIFY(i1 != m.end());
  49   VERIFY(i1->first == "grape");
  50   VERIFY(i1->second == 3 || i2->second == 7);
  51   VERIFY(i2 != m.end());
  52   VERIFY(i2->first == "durian");
  53   VERIFY(i2->second == 8);
  54   VERIFY(i3 == m.end());
  55
  56   std::pair<Map::iterator, Map::iterator> p1 = m.equal_range("grape");
  57   VERIFY(std::distance(p1.first, p1.second) == 2);
  58   Map::iterator tmp = p1.first;
  59   ++tmp;
  60   VERIFY(p1.first->first == "grape");
  61   VERIFY(tmp->first == "grape");
  62   VERIFY((p1.first->second == 3 && tmp->second == 7) ||
  63          (p1.first->second == 7 && tmp->second == 3));
  64
  65   std::pair<Map::iterator, Map::iterator> p2 = m.equal_range("durian");
  66   VERIFY(std::distance(p2.first, p2.second) == 1);
  67   VERIFY(p2.first->first == "durian");
  68   VERIFY(p2.first->second == 8);
  69
  70   std::pair<Map::iterator, Map::iterator> p3 = m.equal_range("kiwi");
  71   VERIFY(p3.first == p3.second);
  72
  73   VERIFY(m.count("grape") == 2);
  74   VERIFY(m.count("durian") == 1);
  75   VERIFY(m.count("kiwi") == 0);
  76 }
  77
  78 int main()
  79 {
  80   test01();
  81   return 0;
  82 }