libstdc++-v3/testsuite/23_containers/set/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 <set>
  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   set<int> s0;
  30   typedef set<int>::iterator iterator;
  31   typedef set<int>::const_iterator const_iterator;
  32   typedef pair<iterator, bool> insert_return_type;
  33   pair<iterator, iterator> pp0;
  34
  35   pp0 = s0.equal_range(1);
  36   VERIFY( s0.count(1) == 0 );
  37   VERIFY( pp0.first == s0.end() );
  38   VERIFY( pp0.second == s0.end() );
  39
  40   insert_return_type irt0 = s0.insert(1);
  41   insert_return_type irt1 = s0.insert(2);
  42   insert_return_type irt2 = s0.insert(3);
  43
  44   pp0 = s0.equal_range(2);
  45   VERIFY( s0.count(2) == 1 );
  46   VERIFY( *pp0.first == 2 );
  47   VERIFY( *pp0.second == 3 );
  48   VERIFY( pp0.first == irt1.first );
  49   VERIFY( --pp0.first == irt0.first );
  50   VERIFY( pp0.second == irt2.first );
  51
  52   s0.insert(3);
  53   insert_return_type irt3 = s0.insert(3);
  54   insert_return_type irt4 = s0.insert(4);
  55
  56   pp0 = s0.equal_range(3);
  57   VERIFY( s0.count(3) == 1 );
  58   VERIFY( *pp0.first == 3 );
  59   VERIFY( *pp0.second == 4 );
  60   VERIFY( pp0.first == irt2.first );
  61   VERIFY( --pp0.first == irt1.first );
  62   VERIFY( pp0.second == irt4.first );
  63
  64   insert_return_type irt5 = s0.insert(0);
  65   s0.insert(1);
  66   s0.insert(1);
  67   s0.insert(1);
  68
  69   pp0 = s0.equal_range(1);
  70   VERIFY( s0.count(1) == 1 );
  71   VERIFY( *pp0.first == 1 );
  72   VERIFY( *pp0.second == 2 );
  73   VERIFY( pp0.first == irt0.first );
  74   VERIFY( --pp0.first == irt5.first );
  75   VERIFY( pp0.second == irt1.first );
  76
  77   insert_return_type irt6 = s0.insert(5);
  78   s0.insert(5);
  79   s0.insert(5);
  80
  81   pp0 = s0.equal_range(5);
  82   VERIFY( s0.count(5) == 1 );
  83   VERIFY( *pp0.first == 5 );
  84   VERIFY( pp0.first == irt6.first );
  85   VERIFY( --pp0.first == irt4.first );
  86   VERIFY( pp0.second == s0.end() );
  87
  88   s0.insert(4);
  89   s0.insert(4);
  90   s0.insert(4);
  91
  92   pp0 = s0.equal_range(4);
  93   VERIFY( s0.count(4) == 1 );
  94   VERIFY( *pp0.first == 4 );
  95   VERIFY( *pp0.second == 5 );
  96   VERIFY( pp0.first == irt4.first );
  97   VERIFY( --pp0.first == irt3.first );
  98   VERIFY( pp0.second == irt6.first );
  99
 100   s0.insert(0);
 101   insert_return_type irt7 = s0.insert(0);
 102   s0.insert(1);
 103
 104   pp0 = s0.equal_range(0);
 105   VERIFY( s0.count(0) == 1 );
 106   VERIFY( *pp0.first == 0 );
 107   VERIFY( *pp0.second == 1 );
 108   VERIFY( pp0.first == irt5.first );
 109   VERIFY( pp0.first == s0.begin() );
 110   VERIFY( pp0.second == irt0.first );
 111
 112   const set<int>& s1 = s0;
 113   pair<const_iterator, const_iterator> pp1 = s1.equal_range(1);
 114   VERIFY( s1.count(1) == 1 );
 115   VERIFY( *pp1.first == 1 );
 116   VERIFY( *pp1.second == 2 );
 117   VERIFY( pp1.first == irt0.first );
 118   VERIFY( --pp1.first == irt7.first );
 119   VERIFY( pp1.second == irt1.first );
 120 }
 121
 122 int
 123 main()
 124 {
 125   test01();
 126   return 0;
 127 }