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

   1 // 2006-11-25  Paolo Carlini  <pcarlini@suse.de>
   2
   3 // Copyright (C) 2006-2020 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   map<int, int> m0;
  30   typedef map<int, int>::iterator iterator;
  31   typedef map<int, int>::const_iterator const_iterator;
  32   typedef pair<iterator, bool> insert_return_type;
  33   pair<iterator, iterator> pp0;
  34   typedef map<int, int>::value_type value_type;
  35
  36   pp0 = m0.equal_range(1);
  37   VERIFY( m0.count(1) == 0 );
  38   VERIFY( pp0.first == m0.end() );
  39   VERIFY( pp0.second == m0.end() );
  40
  41   insert_return_type irt0 = m0.insert(value_type(1, 1));
  42   insert_return_type irt1 = m0.insert(value_type(2, 2));
  43   insert_return_type irt2 = m0.insert(value_type(3, 3));
  44
  45   pp0 = m0.equal_range(2);
  46   VERIFY( m0.count(2) == 1 );
  47   VERIFY( *pp0.first == value_type(2, 2) );
  48   VERIFY( *pp0.second == value_type(3, 3) );
  49   VERIFY( pp0.first == irt1.first );
  50   VERIFY( --pp0.first == irt0.first );
  51   VERIFY( pp0.second == irt2.first );
  52
  53   m0.insert(value_type(3, 4));
  54   insert_return_type irt3 = m0.insert(value_type(3, 5));
  55   insert_return_type irt4 = m0.insert(value_type(4, 6));
  56
  57   pp0 = m0.equal_range(3);
  58   VERIFY( m0.count(3) == 1 );
  59   VERIFY( *pp0.first == value_type(3, 3) );
  60   VERIFY( *pp0.second == value_type(4, 6) );
  61   VERIFY( pp0.first == irt2.first );
  62   VERIFY( --pp0.first == irt1.first );
  63   VERIFY( pp0.second == irt4.first );
  64
  65   insert_return_type irt5 = m0.insert(value_type(0, 7));
  66   m0.insert(value_type(1, 8));
  67   m0.insert(value_type(1, 9));
  68   m0.insert(value_type(1, 10));
  69
  70   pp0 = m0.equal_range(1);
  71   VERIFY( m0.count(1) == 1 );
  72   VERIFY( *pp0.first == value_type(1, 1) );
  73   VERIFY( *pp0.second == value_type(2, 2) );
  74   VERIFY( pp0.first == irt0.first );
  75   VERIFY( --pp0.first == irt5.first );
  76   VERIFY( pp0.second == irt1.first );
  77
  78   insert_return_type irt6 = m0.insert(value_type(5, 11));
  79   m0.insert(value_type(5, 12));
  80   m0.insert(value_type(5, 13));
  81
  82   pp0 = m0.equal_range(5);
  83   VERIFY( m0.count(5) == 1 );
  84   VERIFY( *pp0.first == value_type(5, 11) );
  85   VERIFY( pp0.first == irt6.first );
  86   VERIFY( --pp0.first == irt4.first );
  87   VERIFY( pp0.second == m0.end() );
  88
  89   m0.insert(value_type(4, 14));
  90   m0.insert(value_type(4, 15));
  91   m0.insert(value_type(4, 16));
  92
  93   pp0 = m0.equal_range(4);
  94   VERIFY( m0.count(4) == 1 );
  95   VERIFY( *pp0.first == value_type(4, 6) );
  96   VERIFY( *pp0.second == value_type(5, 11) );
  97   VERIFY( pp0.first == irt4.first );
  98   VERIFY( --pp0.first == irt3.first );
  99   VERIFY( pp0.second == irt6.first );
 100
 101   m0.insert(value_type(0, 17));
 102   insert_return_type irt7 = m0.insert(value_type(0, 18));
 103   m0.insert(value_type(1, 19));
 104
 105   pp0 = m0.equal_range(0);
 106   VERIFY( m0.count(0) == 1 );
 107   VERIFY( *pp0.first == value_type(0, 7) );
 108   VERIFY( *pp0.second == value_type(1, 1) );
 109   VERIFY( pp0.first == irt5.first );
 110   VERIFY( pp0.first == m0.begin() );
 111   VERIFY( pp0.second == irt0.first );
 112
 113   const map<int, int>& m1 = m0;
 114   pair<const_iterator, const_iterator> pp1 = m1.equal_range(1);
 115   VERIFY( m1.count(1) == 1 );
 116   VERIFY( *pp1.first == value_type(1, 1) );
 117   VERIFY( *pp1.second == value_type(2, 2) );
 118   VERIFY( pp1.first == irt0.first );
 119   VERIFY( --pp1.first == irt7.first);
 120   VERIFY( pp1.second == irt1.first );
 121 }
 122
 123 int
 124 main()
 125 {
 126   test01();
 127   return 0;
 128 }