libstdc++-v3/testsuite/24_iterators/back_insert_iterator.cc

   1 // 2001-06-21  Benjamin Kosnik  <bkoz@redhat.com>
   2
   3 // Copyright (C) 2001, 2002 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 2, 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 COPYING.  If not, write to the Free
  18 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19 // USA.
  20
  21 // 24.4.2.1 Template class back_insert_iterator
  22
  23 #include <iterator>
  24 #include <list>
  25
  26 void test01()
  27 {
  28   using namespace std;
  29
  30   // Check for required base class.
  31   list<int> l;
  32   typedef back_insert_iterator<list<int> > test_iterator;
  33   typedef iterator<output_iterator_tag, void, void, void, void> base_iterator;
  34   test_iterator  r_it(l);
  35   base_iterator* base __attribute__((unused)) = &r_it;
  36
  37   // Check for required typedefs
  38   typedef test_iterator::value_type value_type;
  39   typedef test_iterator::difference_type difference_type;
  40   typedef test_iterator::pointer pointer;
  41   typedef test_iterator::reference reference;
  42   typedef test_iterator::iterator_category iteratory_category;
  43   typedef test_iterator::container_type container_type;
  44 }
  45
  46
  47 // Make sure iterator can be instantiated.
  48 template class std::back_insert_iterator<std::list<int> >;
  49
  50 void test02()
  51 {
  52   typedef std::back_insert_iterator<std::list<int> > iterator_type;
  53   std::list<int> li;
  54   iterator_type it = std::back_inserter(li);
  55 }
  56
  57 // Check data member 'container' accessible.
  58 class test_dm : public std::back_insert_iterator<std::list<int> >
  59 {
  60   container_type l;
  61   container_type* p;
  62 public:
  63   test_dm():  std::back_insert_iterator<std::list<int> >(l), p(container) { }
  64 };
  65
  66 int main()
  67 {
  68   test01();
  69   test02();
  70   return 0;
  71 }