1
// (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com)
2
// (C) Copyright 2003-2007 Jonathan Turkanis
3
// Distributed under the Boost Software License, Version 1.0. (See accompanying
4
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.)
6
// See http://www.boost.org/libs/iostreams for documentation.
8
#ifndef BOOST_IOSTREAMS_CONCEPTS_HPP_INCLUDED
9
#define BOOST_IOSTREAMS_CONCEPTS_HPP_INCLUDED
11
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
15
#include <boost/config.hpp> // BOOST_MSVC
16
#include <boost/detail/workaround.hpp>
17
#include <boost/iostreams/categories.hpp>
18
#include <boost/iostreams/detail/default_arg.hpp>
19
#include <boost/iostreams/detail/ios.hpp> // openmode.
20
#include <boost/iostreams/positioning.hpp>
21
#include <boost/static_assert.hpp>
22
#include <boost/type_traits/is_convertible.hpp>
24
namespace boost { namespace iostreams {
26
//--------------Definitions of helper templates for device concepts-----------//
28
template<typename Mode, typename Ch = BOOST_IOSTREAMS_DEFAULT_ARG(char)>
40
using namespace detail;
41
BOOST_STATIC_ASSERT((!is_convertible<Mode, two_sequence>::value));
44
void close(BOOST_IOS::openmode)
46
using namespace detail;
47
BOOST_STATIC_ASSERT((is_convertible<Mode, two_sequence>::value));
50
template<typename Locale>
51
void imbue(const Locale&) { }
54
template<typename Mode, typename Ch = BOOST_IOSTREAMS_DEFAULT_ARG(wchar_t)>
55
struct wdevice : device<Mode, Ch> { };
57
typedef device<input> source;
58
typedef wdevice<input> wsource;
59
typedef device<output> sink;
60
typedef wdevice<output> wsink;
62
//--------------Definitions of helper templates for simple filter concepts----//
64
template<typename Mode, typename Ch = BOOST_IOSTREAMS_DEFAULT_ARG(char)>
74
template<typename Device>
77
using namespace detail;
78
BOOST_STATIC_ASSERT((!is_convertible<Mode, two_sequence>::value));
79
BOOST_STATIC_ASSERT((!is_convertible<Mode, dual_use>::value));
82
template<typename Device>
83
void close(Device&, BOOST_IOS::openmode)
85
using namespace detail;
87
(is_convertible<Mode, two_sequence>::value) ||
88
(is_convertible<Mode, dual_use>::value)
92
template<typename Locale>
93
void imbue(const Locale&) { }
96
template<typename Mode, typename Ch = BOOST_IOSTREAMS_DEFAULT_ARG(wchar_t)>
97
struct wfilter : filter<Mode, Ch> { };
99
typedef filter<input> input_filter;
100
typedef wfilter<input> input_wfilter;
101
typedef filter<output> output_filter;
102
typedef wfilter<output> output_wfilter;
103
typedef filter<seekable> seekable_filter;
104
typedef wfilter<seekable> seekable_wfilter;
105
typedef filter<dual_use> dual_use_filter;
106
typedef wfilter<dual_use> dual_use_wfilter;
108
//------Definitions of helper templates for multi-character filter cncepts----//
110
template<typename Mode, typename Ch = char>
111
struct multichar_filter : filter<Mode, Ch> {
112
struct category : filter<Mode, Ch>::category, multichar_tag { };
115
template<typename Mode, typename Ch = wchar_t>
116
struct multichar_wfilter : multichar_filter<Mode, Ch> { };
118
typedef multichar_filter<input> multichar_input_filter;
119
typedef multichar_wfilter<input> multichar_input_wfilter;
120
typedef multichar_filter<output> multichar_output_filter;
121
typedef multichar_wfilter<output> multichar_output_wfilter;
122
typedef multichar_filter<dual_use> multichar_dual_use_filter;
123
typedef multichar_wfilter<dual_use> multichar_dual_use_wfilter;
125
//----------------------------------------------------------------------------//
127
} } // End namespaces iostreams, boost.
129
#endif // #ifndef BOOST_IOSTREAMS_CONCEPTS_HPP_INCLUDED