libstdc++-v3/testsuite/23_containers/multimap/operations/1.cc

   1 // 2006-11-25  Paolo Carlini  <pcarlini@suse.de>
   2
   3 // Copyright (C) 2006-2025 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
  21 #include <map>
  22 #include <testsuite_hooks.h>
  23
  24 // A few tests for equal_range, in the occasion of libstdc++/29385.
  25 void test01()
  26 {
  27   using namespace std;
  28
  29   multimap<int, int> mm0;
  30   typedef multimap<int, int>::iterator iterator;
  31   typedef multimap<int, int>::const_iterator const_iterator;
  32   pair<iterator, iterator> pp0;
  33   typedef multimap<int, int>::value_type value_type;
  34
  35   pp0 = mm0.equal_range(1);
  36   VERIFY( mm0.count(1) == 0 );
  37   VERIFY( pp0.first == mm0.end() );
  38   VERIFY( pp0.second == mm0.end() );
  39
  40   iterator iter0 = mm0.insert(value_type(1, 1));
  41   iterator iter1 = mm0.insert(value_type(2, 2));
  42   iterator iter2 = mm0.insert(value_type(3, 3));
  43
  44   pp0 = mm0.equal_range(2);
  45   VERIFY( mm0.count(2) == 1 );
  46   VERIFY( *pp0.first == value_type(2, 2) );
  47   VERIFY( *pp0.second == value_type(3, 3) );
  48   VERIFY( pp0.first == iter1 );
  49   VERIFY( --pp0.first == iter0 );
  50   VERIFY( pp0.second == iter2 );
  51
  52   mm0.insert(value_type(3, 4));
  53   iterator iter3 = mm0.insert(value_type(3, 5));
  54   iterator iter4 = mm0.insert(value_type(4, 6));
  55
  56   pp0 = mm0.equal_range(3);
  57   VERIFY( mm0.count(3) == 3 );
  58   VERIFY( *pp0.first == value_type(3, 3) );
  59   VERIFY( *pp0.second == value_type(4, 6) );
  60   VERIFY( pp0.first == iter2 );
  61   VERIFY( --pp0.first == iter1 );
  62   VERIFY( pp0.second == iter4 );
  63
  64   iterator iter5 = mm0.insert(value_type(0, 7));
  65   mm0.insert(value_type(1, 8));
  66   mm0.insert(value_type(1, 9));
  67   mm0.insert(value_type(1, 10));
  68
  69   pp0 = mm0.equal_range(1);
  70   VERIFY( mm0.count(1) == 4 );
  71   VERIFY( *pp0.first == value_type(1, 1) );
  72   VERIFY( *pp0.second == value_type(2, 2) );
  73   VERIFY( pp0.first == iter0 );
  74   VERIFY( --pp0.first == iter5 );
  75   VERIFY( pp0.second == iter1 );
  76
  77   iterator iter6 = mm0.insert(value_type(5, 11));
  78   mm0.insert(value_type(5, 12));
  79   mm0.insert(value_type(5, 13));
  80
  81   pp0 = mm0.equal_range(5);
  82   VERIFY( mm0.count(5) == 3 );
  83   VERIFY( *pp0.first == value_type(5, 11) );
  84   VERIFY( pp0.first == iter6 );
  85   VERIFY( --pp0.first == iter4 );
  86   VERIFY( pp0.second == mm0.end() );
  87
  88   mm0.insert(value_type(4, 14));
  89   mm0.insert(value_type(4, 15));
  90   mm0.insert(value_type(4, 16));
  91
  92   pp0 = mm0.equal_range(4);
  93   VERIFY( mm0.count(4) == 4 );
  94   VERIFY( *pp0.first == value_type(4, 6) );
  95   VERIFY( *pp0.second == value_type(5, 11) );
  96   VERIFY( pp0.first == iter4 );
  97   VERIFY( --pp0.first == iter3 );
  98   VERIFY( pp0.second == iter6 );
  99
 100   mm0.insert(value_type(0, 17));
 101   iterator iter7 = mm0.insert(value_type(0, 18));
 102   mm0.insert(value_type(1, 19));
 103
 104   pp0 = mm0.equal_range(0);
 105   VERIFY( mm0.count(0) == 3 );
 106   VERIFY( *pp0.first == value_type(0, 7) );
 107   VERIFY( *pp0.second == value_type(1, 1) );
 108   VERIFY( pp0.first == iter5 );
 109   VERIFY( pp0.first == mm0.begin() );
 110   VERIFY( pp0.second == iter0 );
 111
 112   const multimap<int, int>& mm1 = mm0;
 113   pair<const_iterator, const_iterator> pp1 = mm1.equal_range(1);
 114   VERIFY( mm1.count(1) == 5 );
 115   VERIFY( *pp1.first == value_type(1, 1) );
 116   VERIFY( *pp1.second == value_type(2, 2) );
 117   VERIFY( pp1.first == iter0 );
 118   VERIFY( --pp1.first == iter7 );
 119   VERIFY( pp1.second == iter1 );
 120 }
 121
 122 int
 123 main()
 124 {
 125   test01();
 126   return 0;
 127 }