libstdc++-v3/testsuite/tr1/6_containers/unordered_map/find/map1.cc

   1 // { dg-do run }
   2
   3 // 2005-2-18  Matt Austern  <austern@apple.com>
   4 //
   5 // Copyright (C) 2005-2013 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 // 6.3.4.4 unordered_map
  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 bool test __attribute__((unused)) = true;
  33
  34 void test01()
  35 {
  36   typedef std::tr1::unordered_map<std::string, int> Map;
  37   typedef std::pair<const std::string, int> Pair;
  38
  39   Map m;
  40   VERIFY(m.empty());
  41
  42   std::pair<Map::iterator, bool> tmp = m.insert(Pair("grape", 3));
  43   Map::iterator i = tmp.first;
  44   VERIFY(tmp.second);
  45
  46   Map::iterator i2 = m.find("grape");
  47   VERIFY(i2 != m.end());
  48   VERIFY(i2 == i);
  49   VERIFY(i2->first == "grape");
  50   VERIFY(i2->second == 3);
  51
  52   Map::iterator i3 = m.find("lime");
  53   VERIFY(i3 == m.end());
  54
  55   std::pair<Map::iterator, Map::iterator> p = m.equal_range("grape");
  56   VERIFY(std::distance(p.first, p.second) == 1);
  57   VERIFY(p.first == i2);
  58
  59   std::pair<Map::iterator, Map::iterator> p2 = m.equal_range("lime");
  60   VERIFY(p2.first == p2.second);
  61
  62   VERIFY(m.count("grape") == 1);
  63   VERIFY(m.count("lime") == 0);
  64 }
  65
  66 int main()
  67 {
  68   test01();
  69   return 0;
  70 }