libstdc++-v3/testsuite/23_containers/list/capacity/1.cc

   1 // Copyright (C) 2001, 2004 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 2, 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 Pred 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 COPYING.  If not, write to the Free
  16 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  17 // USA.
  18
  19 // 23.2.2.2 list capacity [lib.list.capacity]
  20
  21 #include <list>
  22 #include <testsuite_hooks.h>
  23
  24 bool test __attribute__((unused)) = true;
  25
  26 // This test verifies the following.
  27 //
  28 // 23.2.2       bool empty() const
  29 // 23.2.2       size_type size() const
  30 // 23.2.2       iterator begin()
  31 // 23.2.2       iterator end()
  32 // 23.2.2.3     void push_back(const T&)
  33 // 23.2.2       size_type max_size() const
  34 // 23.2.2.2     void resize(size_type s, T c = T())
  35 //
  36 void
  37 test01()
  38 {
  39   std::list<int> list0101;
  40   VERIFY(list0101.empty());
  41   VERIFY(list0101.size() == 0);
  42
  43   list0101.push_back(1);
  44   VERIFY(!list0101.empty());
  45   VERIFY(list0101.size() == 1);
  46
  47   list0101.resize(3, 2);
  48   VERIFY(!list0101.empty());
  49   VERIFY(list0101.size() == 3);
  50
  51   std::list<int>::iterator i = list0101.begin();
  52   VERIFY(*i == 1); ++i;
  53   VERIFY(*i == 2); ++i;
  54   VERIFY(*i == 2); ++i;
  55   VERIFY(i == list0101.end());
  56
  57   list0101.resize(0);
  58   VERIFY(list0101.empty());
  59   VERIFY(list0101.size() == 0);
  60 }
  61
  62 #if !__GXX_WEAK__ && _MT_ALLOCATOR_H
  63 // Explicitly instantiate for systems with no COMDAT or weak support.
  64 template class __gnu_cxx::__mt_alloc<std::_List_node<int> >;
  65 #endif
  66
  67 int
  68 main()
  69 {
  70   test01();
  71   return 0;
  72 }
  73
  74 // vi:set sw=2 ts=2: