cpptoxml/parser/rpp/pp-iterator.h

   1 /****************************************************************************
   2 **
   3 ** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
   4 ** Copyright 2005 Roberto Raggi <roberto@kdevelop.org>
   5 **
   6 ** This file is part of $PRODUCT$.
   7 **
   8 ** $CPP_LICENSE$
   9 **
  10 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
  11 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  12 **
  13 ****************************************************************************/
  14
  15 #ifndef PP_ITERATOR_H
  16 #define PP_ITERATOR_H
  17
  18 #include <iterator>
  19
  20 namespace rpp {
  21
  22 class pp_null_output_iterator
  23   : public std::iterator<std::output_iterator_tag, void, void, void, void>
  24 {
  25 public:
  26   pp_null_output_iterator() {}
  27
  28   template <typename _Tp>
  29   pp_null_output_iterator &operator=(_Tp const &)
  30   { return *this; }
  31
  32   inline pp_null_output_iterator &operator * () { return *this; }
  33   inline pp_null_output_iterator &operator ++ () { return *this; }
  34   inline pp_null_output_iterator operator ++ (int) { return *this; }
  35 };
  36
  37 template <typename _Container>
  38 class pp_output_iterator
  39   : public std::iterator<std::output_iterator_tag, void, void, void, void>
  40 {
  41   std::string &_M_result;
  42
  43 public:
  44   explicit pp_output_iterator(std::string &__result):
  45     _M_result (__result) {}
  46
  47   inline pp_output_iterator &operator=(typename _Container::const_reference __v)
  48   {
  49     if (_M_result.capacity () == _M_result.size ())
  50       _M_result.reserve (_M_result.capacity () << 2);
  51
  52     _M_result.push_back(__v);
  53     return *this;
  54   }
  55
  56   inline pp_output_iterator &operator * () { return *this; }
  57   inline pp_output_iterator &operator ++ () { return *this; }
  58   inline pp_output_iterator operator ++ (int) { return *this; }
  59 };
  60
  61 } // namespace rpp
  62
  63 #endif // PP_ITERATOR_H
  64
  65 // kate: space-indent on; indent-width 2; replace-tabs on;