ceph/src/boost/libs/spirit/include/boost/spirit/home/support/iterators/istream_iterator.hpp

   1 //  Copyright (c) 2001-2011 Hartmut Kaiser
   2 //
   3 //  Distributed under the Boost Software License, Version 1.0. (See accompanying
   4 //  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   5
   6 #if !defined(BOOST_SPIRIT_ISTREAM_ITERATOR_JAN_03_2010_0522PM)
   7 #define BOOST_SPIRIT_ISTREAM_ITERATOR_JAN_03_2010_0522PM
   8
   9 #include <boost/spirit/home/support/iterators/detail/ref_counted_policy.hpp>
  10 #if defined(BOOST_SPIRIT_DEBUG)
  11 #include <boost/spirit/home/support/iterators/detail/buf_id_check_policy.hpp>
  12 #else
  13 #include <boost/spirit/home/support/iterators/detail/no_check_policy.hpp>
  14 #endif
  15 #include <boost/spirit/home/support/iterators/detail/istream_policy.hpp>
  16 #include <boost/spirit/home/support/iterators/detail/split_std_deque_policy.hpp>
  17 #include <boost/spirit/home/support/iterators/detail/combine_policies.hpp>
  18 #include <boost/spirit/home/support/iterators/multi_pass.hpp>
  19
  20 namespace boost { namespace spirit
  21 {
  22     ///////////////////////////////////////////////////////////////////////////
  23     template <typename Elem, typename Traits = std::char_traits<Elem> >
  24     class basic_istream_iterator :
  25         public multi_pass<
  26             std::basic_istream<Elem, Traits>
  27           , iterator_policies::default_policy<
  28                 iterator_policies::ref_counted
  29 #if defined(BOOST_SPIRIT_DEBUG)
  30               , iterator_policies::buf_id_check
  31 #else
  32               , iterator_policies::no_check
  33 #endif
  34               , iterator_policies::istream
  35               , iterator_policies::split_std_deque>
  36         >
  37     {
  38     private:
  39         typedef multi_pass<
  40             std::basic_istream<Elem, Traits>
  41           , iterator_policies::default_policy<
  42                 iterator_policies::ref_counted
  43 #if defined(BOOST_SPIRIT_DEBUG)
  44               , iterator_policies::buf_id_check
  45 #else
  46               , iterator_policies::no_check
  47 #endif
  48               , iterator_policies::istream
  49               , iterator_policies::split_std_deque>
  50         > base_type;
  51
  52     public:
  53         basic_istream_iterator()
  54           : base_type() {}
  55
  56         explicit basic_istream_iterator(std::basic_istream<Elem, Traits>& x)
  57           : base_type(x) {}
  58
  59         basic_istream_iterator(basic_istream_iterator const& x)
  60           : base_type(x) {}
  61
  62 #if BOOST_WORKAROUND(__GLIBCPP__, == 20020514)
  63         basic_istream_iterator(int)   // workaround for a bug in the library
  64           : base_type() {}            // shipped with gcc 3.1
  65 #endif // BOOST_WORKAROUND(__GLIBCPP__, == 20020514)
  66
  67         basic_istream_iterator operator= (base_type const& rhs)
  68         {
  69             this->base_type::operator=(rhs);
  70             return *this;
  71         }
  72
  73     // default generated operators, destructor and assignment operator are ok.
  74     };
  75
  76     typedef basic_istream_iterator<char> istream_iterator;
  77
  78 }}
  79
  80 #endif