source: NonGTP/Boost/boost/archive/iterators/insert_linebreaks.hpp @ 857

Revision 857, 2.8 KB checked in by igarcia, 19 years ago (diff)
Line 
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// binary_from_base64.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 <cassert>
20
21#include <boost/config.hpp> // for BOOST_DEDUCED_TYPENAME
22#if defined(BOOST_NO_STDC_NAMESPACE)
23namespace std{ using ::memcpy; }
24#endif
25
26#include <boost/pfto.hpp>
27
28#include <boost/iterator/iterator_adaptor.hpp>
29#include <boost/iterator/iterator_traits.hpp>
30
31namespace boost {
32namespace archive {
33namespace iterators {
34
35/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
36// insert line break every N characters
37template<
38    class Base,
39    int N,
40    class CharType = BOOST_DEDUCED_TYPENAME boost::iterator_value<Base>::type
41>
42class 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{
51private:
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;
83public:
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
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