libstdc++-v3/testsuite/23_containers/multiset/modifiers/dr130.cc

   1 // { dg-do run { target c++11 } }
   2
   3 // Copyright (C) 2009-2025 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 // NOTE: This makes use of the fact that we know how moveable
  22 // is implemented on multiset (via swap). If the implementation changed
  23 // this test may begin to fail.
  24
  25 #include <set>
  26 #include <vector>
  27 #include <testsuite_hooks.h>
  28
  29 using namespace std;
  30
  31 void
  32 test01()
  33 {
  34   using namespace std;
  35
  36   multiset<int> ms0;
  37   typedef multiset<int>::iterator iterator;
  38   typedef multiset<int>::const_iterator const_iterator;
  39   typedef iterator insert_return_type;
  40
  41   vector<insert_return_type> irt;
  42   for ( int i = 1; i <= 4; ++i )
  43     for (int j = 1; j <= i; ++j)
  44       irt.push_back( ms0.insert( i ) );
  45
  46   iterator pos1 = ms0.erase(irt[1]);
  47   VERIFY( pos1 == irt[2] );
  48
  49   iterator pos2 = ms0.erase(irt[2]);
  50   VERIFY( pos2 == irt[3] );
  51
  52   iterator pos3 = ms0.erase(irt[9]);
  53   VERIFY( pos3 == ms0.end() );
  54 }
  55
  56 void
  57 test02()
  58 {
  59   using namespace std;
  60
  61   multiset<int> ms0;
  62   typedef multiset<int>::iterator iterator;
  63   typedef multiset<int>::const_iterator const_iterator;
  64   typedef iterator insert_return_type;
  65
  66   vector<insert_return_type> irt;
  67   for ( int i = 1; i <= 4; ++i )
  68     for (int j = 1; j <= i; ++j)
  69       irt.push_back( ms0.insert( i ) );
  70
  71   iterator pos1 = ms0.erase(irt[3], irt[6]);
  72   VERIFY( pos1 == irt[6] );
  73
  74   iterator pos2 = ms0.erase(irt[6], ++irt[9]);
  75   VERIFY( pos2 == ms0.end() );
  76 }
  77
  78 int
  79 main()
  80 {
  81   test01();
  82   test02();
  83 }