1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
// (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com)
// (C) Copyright 2003-2007 Jonathan Turkanis
// Distributed under 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/libs/iostreams for documentation.
#ifndef BOOST_IOSTREAMS_WRITE_HPP_INCLUDED
#define BOOST_IOSTREAMS_WRITE_HPP_INCLUDED
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
# pragma once
#endif
#include <boost/config.hpp> // DEDUCED_TYPENAME, MSVC.
#include <boost/detail/workaround.hpp>
#include <boost/iostreams/categories.hpp>
#include <boost/iostreams/detail/char_traits.hpp>
#include <boost/iostreams/detail/dispatch.hpp>
#include <boost/iostreams/detail/ios.hpp> // streamsize.
#include <boost/iostreams/detail/streambuf.hpp>
#include <boost/iostreams/detail/wrap_unwrap.hpp>
#include <boost/iostreams/operations_fwd.hpp>
#include <boost/iostreams/traits.hpp>
#include <boost/mpl/if.hpp>
// Must come last.
#include <boost/iostreams/detail/config/disable_warnings.hpp>
#if BOOST_WORKAROUND(BOOST_MSVC, < 1300) //-----------------------------------//
# include <boost/iostreams/detail/vc6/write.hpp>
#else // #if BOOST_WORKAROUND(BOOST_MSVC, < 1300) //--------------------------//
namespace boost { namespace iostreams {
namespace detail {
template<typename T>
struct write_device_impl;
template<typename T>
struct write_filter_impl;
} // End namespace detail.
template<typename T>
bool put(T& t, typename char_type_of<T>::type c)
{ return detail::write_device_impl<T>::put(detail::unwrap(t), c); }
template<typename T>
inline std::streamsize write
(T& t, const typename char_type_of<T>::type* s, std::streamsize n)
{ return detail::write_device_impl<T>::write(detail::unwrap(t), s, n); }
template<typename T, typename Sink>
inline std::streamsize
write( T& t, Sink& snk, const typename char_type_of<T>::type* s,
std::streamsize n )
{ return detail::write_filter_impl<T>::write(detail::unwrap(t), snk, s, n); }
namespace detail {
//------------------Definition of write_device_impl---------------------------//
template<typename T>
struct write_device_impl
: mpl::if_<
is_custom<T>,
operations<T>,
write_device_impl<
BOOST_DEDUCED_TYPENAME
dispatch<
T, ostream_tag, streambuf_tag, output
>::type
>
>::type
{ };
template<>
struct write_device_impl<ostream_tag> {
template<typename T>
static bool put(T& t, typename char_type_of<T>::type c)
{
typedef typename char_type_of<T>::type char_type;
typedef BOOST_IOSTREAMS_CHAR_TRAITS(char_type) traits_type;
return !traits_type::eq_int_type( t.rdbuf()->sputc(c),
traits_type::eof() );
}
template<typename T>
static std::streamsize write
(T& t, const typename char_type_of<T>::type* s, std::streamsize n)
{ return t.rdbuf()->sputn(s, n); }
};
template<>
struct write_device_impl<streambuf_tag> {
template<typename T>
static bool put(T& t, typename char_type_of<T>::type c)
{
typedef typename char_type_of<T>::type char_type;
typedef BOOST_IOSTREAMS_CHAR_TRAITS(char_type) traits_type;
return !traits_type::eq_int_type(t.sputc(c), traits_type::eof());
}
template<typename T>
static std::streamsize write
(T& t, const typename char_type_of<T>::type* s, std::streamsize n)
{ return t.sputn(s, n); }
};
template<>
struct write_device_impl<output> {
template<typename T>
static bool put(T& t, typename char_type_of<T>::type c)
{ return t.write(&c, 1) == 1; }
template<typename T>
static std::streamsize
write(T& t, const typename char_type_of<T>::type* s, std::streamsize n)
{ return t.write(s, n); }
};
//------------------Definition of write_filter_impl---------------------------//
template<typename T>
struct write_filter_impl
: mpl::if_<
is_custom<T>,
operations<T>,
write_filter_impl<
BOOST_DEDUCED_TYPENAME
dispatch<
T, multichar_tag, any_tag
>::type
>
>::type
{ };
template<>
struct write_filter_impl<multichar_tag> {
template<typename T, typename Sink>
static std::streamsize
write( T& t, Sink& snk, const typename char_type_of<T>::type* s,
std::streamsize n )
{ return t.write(snk, s, n); }
};
template<>
struct write_filter_impl<any_tag> {
template<typename T, typename Sink>
static std::streamsize
write( T& t, Sink& snk, const typename char_type_of<T>::type* s,
std::streamsize n )
{
for (std::streamsize off = 0; off < n; ++off)
if (!t.put(snk, s[off]))
return off;
return n;
}
};
} // End namespace detail.
} } // End namespaces iostreams, boost.
#endif // #if BOOST_WORKAROUND(BOOST_MSVC, < 1300) //-------------------------//
#include <boost/iostreams/detail/config/enable_warnings.hpp>
#endif // #ifndef BOOST_IOSTREAMS_WRITE_HPP_INCLUDED
|
