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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.) | |
5 | ||
6 | // See http://www.boost.org/libs/iostreams for documentation. | |
7 | ||
8 | #ifndef BOOST_IOSTREAMS_DETAIL_PUSH_HPP_INCLUDED | |
9 | #define BOOST_IOSTREAMS_DETAIL_PUSH_HPP_INCLUDED | |
10 | ||
11 | #if defined(_MSC_VER) | |
12 | # pragma once | |
13 | #endif | |
14 | ||
15 | #include <boost/config.hpp> // BOOST_MSVC. | |
16 | #include <boost/detail/workaround.hpp> | |
17 | #include <boost/iostreams/categories.hpp> | |
18 | #include <boost/iostreams/categories.hpp> | |
19 | #include <boost/iostreams/detail/adapter/range_adapter.hpp> | |
20 | #include <boost/iostreams/detail/config/wide_streams.hpp> | |
21 | #include <boost/iostreams/detail/enable_if_stream.hpp> | |
22 | #include <boost/iostreams/pipeline.hpp> | |
23 | #include <boost/iostreams/detail/push_params.hpp> | |
24 | #include <boost/iostreams/detail/resolve.hpp> | |
25 | #include <boost/mpl/bool.hpp> | |
26 | #include <boost/preprocessor/cat.hpp> | |
27 | #include <boost/preprocessor/control/iif.hpp> | |
28 | #include <boost/static_assert.hpp> | |
29 | #include <boost/type_traits/is_convertible.hpp> | |
30 | ||
31 | // | |
32 | // Macro: BOOST_IOSTREAMS_DEFINE_PUSH_CONSTRUCTOR(name, mode, ch, helper). | |
33 | // Description: Defines overloads with name 'name' which forward to a function | |
34 | // 'helper' which takes a filter or devide by const reference. | |
35 | // | |
36 | #define BOOST_IOSTREAMS_DEFINE_PUSH_CONSTRUCTOR(name, mode, ch, helper) \ | |
37 | BOOST_IOSTREAMS_DEFINE_PUSH_IMPL(name, mode, ch, helper, 0, ?) \ | |
38 | /**/ | |
39 | ||
40 | // | |
41 | // Macro: BOOST_IOSTREAMS_DEFINE_PUSH(name, mode, ch, helper). | |
42 | // Description: Defines constructors which forward to a function | |
43 | // 'helper' which takes a filter or device by const reference. | |
44 | // | |
45 | #define BOOST_IOSTREAMS_DEFINE_PUSH(name, mode, ch, helper) \ | |
46 | BOOST_IOSTREAMS_DEFINE_PUSH_IMPL(name, mode, ch, helper, 1, void) \ | |
47 | /**/ | |
48 | ||
49 | //--------------------Definition of BOOST_IOSTREAMS_DEFINE_PUSH_IMPL----------// | |
50 | ||
51 | #define BOOST_IOSTREAMS_ADAPT_STREAM(mode, ch, arg, helper, has_return) \ | |
52 | this->helper( ::boost::iostreams::detail::resolve<mode, ch>(arg) \ | |
53 | BOOST_IOSTREAMS_PUSH_ARGS() ); \ | |
54 | /**/ | |
55 | ||
56 | #if !BOOST_WORKAROUND(__BORLANDC__, < 0x600) \ | |
57 | /**/ | |
58 | # ifndef BOOST_IOSTREAMS_NO_STREAM_TEMPLATES | |
59 | # define BOOST_IOSTREAMS_DEFINE_PUSH_IMPL(name, mode, ch, helper, has_return, result) \ | |
60 | template<typename CharType, typename TraitsType> \ | |
61 | BOOST_PP_IIF(has_return, result, explicit) \ | |
62 | name(::std::basic_streambuf<CharType, TraitsType>& sb BOOST_IOSTREAMS_PUSH_PARAMS()) \ | |
63 | { BOOST_IOSTREAMS_ADAPT_STREAM(mode, ch, sb, helper, has_return); } \ | |
64 | template<typename CharType, typename TraitsType> \ | |
65 | BOOST_PP_IIF(has_return, result, explicit) \ | |
66 | name(::std::basic_istream<CharType, TraitsType>& is BOOST_IOSTREAMS_PUSH_PARAMS()) \ | |
67 | { BOOST_STATIC_ASSERT((!is_convertible<mode, output>::value)); \ | |
68 | BOOST_IOSTREAMS_ADAPT_STREAM(mode, ch, is, helper, has_return); } \ | |
69 | template<typename CharType, typename TraitsType> \ | |
70 | BOOST_PP_IIF(has_return, result, explicit) \ | |
71 | name(::std::basic_ostream<CharType, TraitsType>& os BOOST_IOSTREAMS_PUSH_PARAMS()) \ | |
72 | { BOOST_STATIC_ASSERT((!is_convertible<mode, input>::value)); \ | |
73 | BOOST_IOSTREAMS_ADAPT_STREAM(mode, ch, os, helper, has_return); } \ | |
74 | template<typename CharType, typename TraitsType> \ | |
75 | BOOST_PP_IIF(has_return, result, explicit) \ | |
76 | name(::std::basic_iostream<CharType, TraitsType>& io BOOST_IOSTREAMS_PUSH_PARAMS()) \ | |
77 | { BOOST_IOSTREAMS_ADAPT_STREAM(mode, ch, io, helper, has_return); } \ | |
78 | template<typename Iter> \ | |
79 | BOOST_PP_IIF(has_return, result, explicit) \ | |
80 | name(const iterator_range<Iter>& rng BOOST_IOSTREAMS_PUSH_PARAMS()) \ | |
81 | { BOOST_PP_EXPR_IF(has_return, return) \ | |
82 | this->helper( ::boost::iostreams::detail::range_adapter< \ | |
83 | mode, iterator_range<Iter> \ | |
84 | >(rng) \ | |
85 | BOOST_IOSTREAMS_PUSH_ARGS() ); } \ | |
86 | template<typename Pipeline, typename Concept> \ | |
87 | BOOST_PP_IIF(has_return, result, explicit) \ | |
88 | name(const ::boost::iostreams::pipeline<Pipeline, Concept>& p) \ | |
89 | { p.push(*this); } \ | |
90 | template<typename T> \ | |
91 | BOOST_PP_IIF(has_return, result, explicit) \ | |
92 | name(const T& t BOOST_IOSTREAMS_PUSH_PARAMS() BOOST_IOSTREAMS_DISABLE_IF_STREAM(T)) \ | |
93 | { this->helper( ::boost::iostreams::detail::resolve<mode, ch>(t) \ | |
94 | BOOST_IOSTREAMS_PUSH_ARGS() ); } \ | |
95 | /**/ | |
96 | # else // # ifndef BOOST_IOSTREAMS_NO_STREAM_TEMPLATES | |
97 | # define BOOST_IOSTREAMS_DEFINE_PUSH_IMPL(name, mode, ch, helper, has_return, result) \ | |
98 | BOOST_PP_IF(has_return, result, explicit) \ | |
99 | name(::std::streambuf& sb BOOST_IOSTREAMS_PUSH_PARAMS()) \ | |
100 | { BOOST_IOSTREAMS_ADAPT_STREAM(mode, ch, sb, helper, has_return); } \ | |
101 | BOOST_PP_IF(has_return, result, explicit) \ | |
102 | name(::std::istream& is BOOST_IOSTREAMS_PUSH_PARAMS()) \ | |
103 | { BOOST_STATIC_ASSERT((!is_convertible<mode, output>::value)); \ | |
104 | BOOST_IOSTREAMS_ADAPT_STREAM(mode, ch, is, helper, has_return); } \ | |
105 | BOOST_PP_IF(has_return, result, explicit) \ | |
106 | name(::std::ostream& os BOOST_IOSTREAMS_PUSH_PARAMS()) \ | |
107 | { BOOST_STATIC_ASSERT((!is_convertible<mode, input>::value)); \ | |
108 | BOOST_IOSTREAMS_ADAPT_STREAM(mode, ch, os, helper, has_return); } \ | |
109 | BOOST_PP_IF(has_return, result, explicit) \ | |
110 | name(::std::iostream& io BOOST_IOSTREAMS_PUSH_PARAMS()) \ | |
111 | { BOOST_IOSTREAMS_ADAPT_STREAM(mode, ch, io, helper, has_return); } \ | |
112 | template<typename Iter> \ | |
113 | BOOST_PP_IF(has_return, result, explicit) \ | |
114 | name(const iterator_range<Iter>& rng BOOST_IOSTREAMS_PUSH_PARAMS()) \ | |
115 | { BOOST_PP_EXPR_IF(has_return, return) \ | |
116 | this->helper( ::boost::iostreams::detail::range_adapter< \ | |
117 | mode, iterator_range<Iter> \ | |
118 | >(rng) \ | |
119 | BOOST_IOSTREAMS_PUSH_ARGS() ); } \ | |
120 | template<typename Pipeline, typename Concept> \ | |
121 | BOOST_PP_IF(has_return, result, explicit) \ | |
122 | name(const ::boost::iostreams::pipeline<Pipeline, Concept>& p) \ | |
123 | { p.push(*this); } \ | |
124 | template<typename T> \ | |
125 | BOOST_PP_EXPR_IF(has_return, result) \ | |
126 | name(const T& t BOOST_IOSTREAMS_PUSH_PARAMS() BOOST_IOSTREAMS_DISABLE_IF_STREAM(T)) \ | |
127 | { this->helper( ::boost::iostreams::detail::resolve<mode, ch>(t) \ | |
128 | BOOST_IOSTREAMS_PUSH_ARGS() ); } \ | |
129 | /**/ | |
130 | # endif // # ifndef BOOST_IOSTREAMS_NO_STREAM_TEMPLATES | |
131 | #else // #if VC6, VC7.0, Borland 5.x | |
132 | # define BOOST_IOSTREAMS_DEFINE_PUSH_IMPL(name, mode, ch, helper, has_return, result) \ | |
133 | template<typename T> \ | |
134 | void BOOST_PP_CAT(name, _msvc_impl) \ | |
135 | ( ::boost::mpl::true_, const T& t BOOST_IOSTREAMS_PUSH_PARAMS() ) \ | |
136 | { t.push(*this); } \ | |
137 | template<typename T> \ | |
138 | void BOOST_PP_CAT(name, _msvc_impl) \ | |
139 | ( ::boost::mpl::false_, const T& t BOOST_IOSTREAMS_PUSH_PARAMS() ) \ | |
140 | { this->helper( ::boost::iostreams::detail::resolve<mode, ch>(t) \ | |
141 | BOOST_IOSTREAMS_PUSH_ARGS() ); } \ | |
142 | template<typename T> \ | |
143 | BOOST_PP_IF(has_return, result, explicit) \ | |
144 | name(const T& t BOOST_IOSTREAMS_PUSH_PARAMS()) \ | |
145 | { \ | |
146 | this->BOOST_PP_CAT(name, _msvc_impl) \ | |
147 | ( ::boost::iostreams::detail::is_pipeline<T>(), \ | |
148 | t BOOST_IOSTREAMS_PUSH_ARGS() ); \ | |
149 | } \ | |
150 | /**/ | |
151 | #endif // #if VC6, VC7.0, Borland 5.x | |
152 | ||
153 | #endif // #ifndef BOOST_IOSTREAMS_DETAIL_PUSH_HPP_INCLUDED |