libstdc++-v3/testsuite/23_containers/list/modifiers/3.h

   1 // Copyright (C) 2001-2014 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // 23.2.2.3 list modifiers [lib.list.modifiers]
  19
  20 #include <testsuite_hooks.h>
  21
  22 // This test verifies the following.
  23 //
  24 // 23.2.2.3     void push_front(const T& x)
  25 // 23.2.2.3     void push_back(const T& x)
  26 // 23.2.2.3 (1) iterator and reference non-invalidation
  27 // 23.2.2.3 (1) exception effects
  28 // 23.2.2.3 (2) complexity requirements
  29 //
  30 // 23.2.2.3     void pop_front()
  31 // 23.2.2.3     void pop_back()
  32 // 23.2.2.3 (3) iterator and reference non-invalidation
  33 // 23.2.2.3 (5) complexity requirements
  34 //
  35 // 23.2.2       const_iterator begin() const
  36 // 23.2.2       iterator end()
  37 // 23.2.2       const_reverse_iterator rbegin() const
  38 // 23.2.2       _reference front()
  39 // 23.2.2       const_reference front() const
  40 // 23.2.2       reference back()
  41 // 23.2.2       const_reference back() const
  42 //
  43 template<typename _Tp>
  44 void
  45 modifiers3()
  46 {
  47   bool test __attribute__((unused)) = true;
  48   typedef _Tp list_type;
  49   typedef typename list_type::iterator iterator;
  50   typedef typename list_type::value_type value_type;
  51   typedef typename list_type::const_iterator const_iterator;
  52   typedef typename list_type::const_reverse_iterator const_reverse_iterator;
  53
  54   using __gnu_test::copy_constructor;
  55   using __gnu_test::destructor;
  56
  57   list_type list0101;
  58   const_iterator i;
  59   const_reverse_iterator j;
  60   iterator k;
  61   value_type::reset();
  62
  63   list0101.push_back(value_type(1));     // list should be [1]
  64   VERIFY(list0101.size() == 1);
  65   VERIFY(copy_constructor::count() == 1);
  66
  67   k = list0101.end();
  68   --k;
  69   VERIFY(k->id() == 1);
  70   VERIFY(k->id() == list0101.front().id());
  71   VERIFY(k->id() == list0101.back().id());
  72
  73   list0101.push_front(value_type(2));    // list should be [2 1]
  74   VERIFY(list0101.size() == 2);
  75   VERIFY(copy_constructor::count() == 2);
  76   VERIFY(k->id() == 1);
  77
  78   list0101.push_back(value_type(3));     // list should be [2 1 3]
  79   VERIFY(list0101.size() == 3);
  80   VERIFY(copy_constructor::count() == 3);
  81   VERIFY(k->id() == 1);
  82
  83   try
  84   {
  85     list0101.push_back(value_type(4, true));
  86     VERIFY(false);
  87   }
  88   catch (...)
  89   {
  90     VERIFY(list0101.size() == 3);
  91     VERIFY(copy_constructor::count() == 4);
  92   }
  93
  94   i = list0101.begin();
  95   VERIFY(i->id() == 2);
  96   VERIFY(i->id() == list0101.front().id());
  97
  98   j = list0101.rbegin();
  99   VERIFY(j->id() == 3);
 100   VERIFY(j->id() == list0101.back().id());
 101
 102   ++i;
 103   VERIFY(i->id() == 1);
 104
 105   ++j;
 106   VERIFY(j->id() == 1);
 107
 108   value_type::reset();
 109
 110   list0101.pop_back();          // list should be [2 1]
 111   VERIFY(list0101.size() == 2);
 112   VERIFY(destructor::count() == 1);
 113   VERIFY(i->id() == 1);
 114   VERIFY(k->id() == 1);
 115
 116   list0101.pop_front();          // list should be [1]
 117   VERIFY(list0101.size() == 1);
 118   VERIFY(destructor::count() == 2);
 119   VERIFY(i->id() == 1);
 120   VERIFY(k->id() == 1);
 121 }