boost/archive/iterators/insert_linebreaks.hpp
#ifndef BOOST_ARCHIVE_ITERATORS_INSERT_LINEBREAKS_HPP
#define BOOST_ARCHIVE_ITERATORS_INSERT_LINEBREAKS_HPP
// MS compatible compilers support #pragma once
#if defined(_MSC_VER)
# pragma once
#endif
/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
// insert_linebreaks.hpp
// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
// Use, modification and distribution is subject to the Boost Software
// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
// See http://www.boost.org for updates, documentation, and revision history.
#include <boost/assert.hpp>
#include <boost/config.hpp>
#if defined(BOOST_NO_STDC_NAMESPACE)
namespace std{ using ::memcpy; }
#endif
#include <boost/iterator/iterator_adaptor.hpp>
#include <boost/iterator/iterator_traits.hpp>
namespace boost {
namespace archive {
namespace iterators {
/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
// insert line break every N characters
template<
class Base,
int N,
class CharType = typename boost::iterator_value<Base>::type
>
class insert_linebreaks :
public iterator_adaptor<
insert_linebreaks<Base, N, CharType>,
Base,
CharType,
single_pass_traversal_tag,
CharType
>
{
private:
friend class boost::iterator_core_access;
typedef iterator_adaptor<
insert_linebreaks<Base, N, CharType>,
Base,
CharType,
single_pass_traversal_tag,
CharType
> super_t;
bool equal(const insert_linebreaks<Base, N, CharType> & rhs) const {
return
// m_count == rhs.m_count
// && base_reference() == rhs.base_reference()
this->base_reference() == rhs.base_reference()
;
}
void increment() {
if(m_count == N){
m_count = 0;
return;
}
++m_count;
++(this->base_reference());
}
CharType dereference() const {
if(m_count == N)
return '\n';
return * (this->base_reference());
}
unsigned int m_count;
public:
// make composable by using templated constructor
template<class T>
insert_linebreaks(T start) :
super_t(Base(static_cast< T >(start))),
m_count(0)
{}
// intel 7.1 doesn't like default copy constructor
insert_linebreaks(const insert_linebreaks & rhs) :
super_t(rhs.base_reference()),
m_count(rhs.m_count)
{}
};
} // namespace iterators
} // namespace archive
} // namespace boost
#endif // BOOST_ARCHIVE_ITERATORS_INSERT_LINEBREAKS_HPP