libstdc++-v3/testsuite/tr1/6_containers/unordered_map/erase/24061-map.cc

   1 // 2005-10-08  Paolo Carlini  <pcarlini@suse.de>
   2 //
   3 // Copyright (C) 2005-2016 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 3, 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 COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 // 6.3.4.4  Class template unordered_map
  21
  22 #include <tr1/unordered_map>
  23 #include <string>
  24 #include <testsuite_hooks.h>
  25
  26 // libstdc++/24061
  27 void test01()
  28 {
  29   bool test __attribute__((unused)) = true;
  30
  31   typedef std::tr1::unordered_map<std::string, int> Map;
  32   typedef Map::iterator       iterator;
  33   typedef Map::const_iterator const_iterator;
  34   typedef Map::value_type     value_type;
  35
  36   Map m1;
  37
  38   m1.insert(value_type("all the love in the world", 1));
  39   m1.insert(value_type("you know what you are?", 2));
  40   m1.insert(value_type("the collector", 3));
  41   m1.insert(value_type("the hand that feeds", 4));
  42   m1.insert(value_type("love is not enough", 5));
  43   m1.insert(value_type("every day is exactly the same", 6));
  44   m1.insert(value_type("with teeth", 7));
  45   m1.insert(value_type("only", 8));
  46   m1.insert(value_type("getting smaller", 9));
  47   m1.insert(value_type("sunspots", 10));
  48   VERIFY( m1.size() == 10 );
  49
  50   iterator it1 = m1.begin();
  51   ++it1;
  52   iterator it2 = it1;
  53   ++it2;
  54   iterator it3 = m1.erase(it1);
  55   VERIFY( m1.size() == 9 );
  56   VERIFY( it3 == it2 );
  57   VERIFY( *it3 == *it2 );
  58
  59   iterator it4 = m1.begin();
  60   ++it4;
  61   ++it4;
  62   ++it4;
  63   iterator it5 = it4;
  64   ++it5;
  65   ++it5;
  66   iterator it6 = m1.erase(it4, it5);
  67   VERIFY( m1.size() == 7 );
  68   VERIFY( it6 == it5 );
  69   VERIFY( *it6 == *it5 );
  70
  71   const_iterator it7 = m1.begin();
  72   ++it7;
  73   ++it7;
  74   ++it7;
  75   const_iterator it8 = it7;
  76   ++it8;
  77   const_iterator it9 = m1.erase(it7);
  78   VERIFY( m1.size() == 6 );
  79   VERIFY( it9 == it8 );
  80   VERIFY( *it9 == *it8 );
  81
  82   const_iterator it10 = m1.begin();
  83   ++it10;
  84   const_iterator it11 = it10;
  85   ++it11;
  86   ++it11;
  87   ++it11;
  88   ++it11;
  89   const_iterator it12 = m1.erase(it10, it11);
  90   VERIFY( m1.size() == 2 );
  91   VERIFY( it12 == it11 );
  92   VERIFY( *it12 == *it11 );
  93   VERIFY( ++it12 == m1.end() );
  94
  95   iterator it13 = m1.erase(m1.begin(), m1.end());
  96   VERIFY( m1.size() == 0 );
  97   VERIFY( it13 == it12 );
  98   VERIFY( it13 == m1.begin() );
  99 }
 100
 101 int main()
 102 {
 103   test01();
 104   return 0;
 105 }