src/thirdparty/boost_1_47_0/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) && (_MSC_VER >= 1020)
   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> // for BOOST_DEDUCED_TYPENAME
  22 #if defined(BOOST_NO_STDC_NAMESPACE)
  23 namespace std{ using ::memcpy; }
  24 #endif
  25
  26 #include <boost/serialization/pfto.hpp>
  27
  28 #include <boost/iterator/iterator_adaptor.hpp>
  29 #include <boost/iterator/iterator_traits.hpp>
  30
  31 namespace boost {
  32 namespace archive {
  33 namespace iterators {
  34
  35 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
  36 // insert line break every N characters
  37 template<
  38     class Base,
  39     int N,
  40     class CharType = BOOST_DEDUCED_TYPENAME boost::iterator_value<Base>::type
  41 >
  42 class insert_linebreaks :
  43     public iterator_adaptor<
  44         insert_linebreaks<Base, N, CharType>,
  45         Base,
  46         CharType,
  47         single_pass_traversal_tag,
  48         CharType
  49     >
  50 {
  51 private:
  52     friend class boost::iterator_core_access;
  53     typedef iterator_adaptor<
  54         insert_linebreaks<Base, N, CharType>,
  55         Base,
  56         CharType,
  57         single_pass_traversal_tag,
  58         CharType
  59     > super_t;
  60
  61     bool equal(const insert_linebreaks<Base, N, CharType> & rhs) const {
  62         return
  63 //            m_count == rhs.m_count
  64 //            && base_reference() == rhs.base_reference()
  65             this->base_reference() == rhs.base_reference()
  66         ;
  67     }
  68
  69     void increment() {
  70         if(m_count == N){
  71             m_count = 0;
  72             return;
  73         }
  74         ++m_count;
  75         ++(this->base_reference());
  76     }
  77     CharType dereference() const {
  78         if(m_count == N)
  79             return '\n';
  80         return * (this->base_reference());
  81     }
  82     unsigned int m_count;
  83 public:
  84     // make composible buy using templated constructor
  85     template<class T>
  86     insert_linebreaks(BOOST_PFTO_WRAPPER(T)  start) :
  87         super_t(Base(BOOST_MAKE_PFTO_WRAPPER(static_cast< T >(start)))),
  88         m_count(0)
  89     {}
  90     // intel 7.1 doesn't like default copy constructor
  91     insert_linebreaks(const insert_linebreaks & rhs) :
  92         super_t(rhs.base_reference()),
  93         m_count(rhs.m_count)
  94     {}
  95 };
  96
  97 } // namespace iterators
  98 } // namespace archive
  99 } // namespace boost
 100
 101 #endif // BOOST_ARCHIVE_ITERATORS_INSERT_LINEBREAKS_HPP