Ugly, not-to-be-pushed sucking in of all of Boost to get windows to work.
[dyninst.git] / external / boost / archive / iterators / unescape.hpp
1 #ifndef BOOST_ARCHIVE_ITERATORS_UNESCAPE_HPP
2 #define BOOST_ARCHIVE_ITERATORS_UNESCAPE_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 // unescape.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 #include <boost/iterator/iterator_adaptor.hpp>
23 //#include <boost/iterator/iterator_traits.hpp>
24 #include <boost/pointee.hpp>
25
26 namespace boost { 
27 namespace archive {
28 namespace iterators {
29
30 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
31 // class used by text archives to translate char strings to wchar_t
32 // strings of the currently selected locale
33 template<class Derived, class Base>
34 class unescape 
35     : public boost::iterator_adaptor<
36         unescape<Derived, Base>,
37         Base, 
38         BOOST_DEDUCED_TYPENAME pointee<Base>::type,
39         single_pass_traversal_tag,
40         BOOST_DEDUCED_TYPENAME pointee<Base>::type
41     >
42 {
43     friend class boost::iterator_core_access;
44     typedef BOOST_DEDUCED_TYPENAME boost::iterator_adaptor<
45         unescape<Derived, Base>, 
46         Base, 
47         BOOST_DEDUCED_TYPENAME pointee<Base>::type,
48         single_pass_traversal_tag,
49         BOOST_DEDUCED_TYPENAME pointee<Base>::type
50     > super_t;
51
52     typedef unescape<Derived, Base> this_t;
53     typedef BOOST_DEDUCED_TYPENAME super_t::reference reference_type;
54 public:
55     // gcc 3.4.1 - linux required that this be public
56     typedef BOOST_DEDUCED_TYPENAME super_t::value_type value_type;
57 private:
58
59     reference_type dereference_impl() {
60         if(! m_full){
61             m_current_value = static_cast<Derived *>(this)->drain();
62             m_full = true;
63         }
64         return m_current_value;
65     }
66
67     reference_type dereference() const {
68         return const_cast<this_t *>(this)->dereference_impl();
69     }
70
71     // value_type is const char - can't be const fix later
72     value_type m_current_value;
73     bool m_full;
74
75     void increment(){
76         ++(this->base_reference());
77         dereference_impl();
78         m_full = false;
79     };
80
81 public:
82
83     unescape(Base base) : 
84         super_t(base),
85         m_full(false)    {}
86
87 };
88
89 } // namespace iterators
90 } // namespace archive
91 } // namespace boost
92
93 #endif // BOOST_ARCHIVE_ITERATORS_UNESCAPE_HPP