ceph/src/boost/libs/serialization/include/boost/archive/iterators/insert_linebreaks.hpp

   1 #ifndef BOOST_ARCHIVE_ITERATORS_INSERT_LINEBREAKS_HPP
   2 #define BOOST_ARCHIVE_ITERATORS_INSERT_LINEBREAKS_HPP
   3
   4 // MS compatible compilers support #pragma once
   5 #if defined(_MSC_VER)
   6 # pragma once
   7 #endif
   8
   9 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
  10 // insert_linebreaks.hpp
  11
  12 // (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
  13 // Use, modification and distribution is subject to the Boost Software
  14 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
  15 // http://www.boost.org/LICENSE_1_0.txt)
  16
  17 //  See http://www.boost.org for updates, documentation, and revision history.
  18
  19 #include <boost/assert.hpp>
  20
  21 #include <boost/config.hpp>
  22 #if defined(BOOST_NO_STDC_NAMESPACE)
  23 namespace std{ using ::memcpy; }
  24 #endif
  25
  26 #include <boost/iterator/iterator_adaptor.hpp>
  27 #include <boost/iterator/iterator_traits.hpp>
  28
  29 namespace boost {
  30 namespace archive {
  31 namespace iterators {
  32
  33 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
  34 // insert line break every N characters
  35 template<
  36     class Base,
  37     int N,
  38     class CharType = typename boost::iterator_value<Base>::type
  39 >
  40 class insert_linebreaks :
  41     public iterator_adaptor<
  42         insert_linebreaks<Base, N, CharType>,
  43         Base,
  44         CharType,
  45         single_pass_traversal_tag,
  46         CharType
  47     >
  48 {
  49 private:
  50     friend class boost::iterator_core_access;
  51     typedef iterator_adaptor<
  52         insert_linebreaks<Base, N, CharType>,
  53         Base,
  54         CharType,
  55         single_pass_traversal_tag,
  56         CharType
  57     > super_t;
  58
  59     bool equal(const insert_linebreaks<Base, N, CharType> & rhs) const {
  60         return
  61 //            m_count == rhs.m_count
  62 //            && base_reference() == rhs.base_reference()
  63             this->base_reference() == rhs.base_reference()
  64         ;
  65     }
  66
  67     void increment() {
  68         if(m_count == N){
  69             m_count = 0;
  70             return;
  71         }
  72         ++m_count;
  73         ++(this->base_reference());
  74     }
  75     CharType dereference() const {
  76         if(m_count == N)
  77             return '\n';
  78         return * (this->base_reference());
  79     }
  80     unsigned int m_count;
  81 public:
  82     // make composible buy using templated constructor
  83     template<class T>
  84     insert_linebreaks(T  start) :
  85         super_t(Base(static_cast< T >(start))),
  86         m_count(0)
  87     {}
  88     // intel 7.1 doesn't like default copy constructor
  89     insert_linebreaks(const insert_linebreaks & rhs) :
  90         super_t(rhs.base_reference()),
  91         m_count(rhs.m_count)
  92     {}
  93 };
  94
  95 } // namespace iterators
  96 } // namespace archive
  97 } // namespace boost
  98
  99 #endif // BOOST_ARCHIVE_ITERATORS_INSERT_LINEBREAKS_HPP