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
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
// (C) Copyright Gennadiy Rozental 2011-2014.
// 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/test for the library home page.
//
//! @file
//! Defines dataset join operation
// ***************************************************************************
#ifndef BOOST_TEST_DATA_MONOMORPHIC_JOIN_HPP_112711GER
#define BOOST_TEST_DATA_MONOMORPHIC_JOIN_HPP_112711GER
// Boost.Test
#include <boost/test/data/config.hpp>
#include <boost/test/data/monomorphic/dataset.hpp>
#include <boost/test/detail/suppress_warnings.hpp>
//____________________________________________________________________________//
namespace boost {
namespace unit_test {
namespace data {
namespace monomorphic {
// ************************************************************************** //
// ************** join ************** //
// ************************************************************************** //
//! Defines a new dataset from the concatenation of two datasets
//!
//! The size of the resulting dataset is the sum of the two underlying datasets. The arity of the datasets
//! should match.
template<typename DS1, typename DS2>
class join : public monomorphic::dataset<typename boost::decay<DS1>::type::data_type> {
typedef typename boost::decay<DS1>::type::data_type T;
typedef monomorphic::dataset<T> base;
typedef typename base::iter_ptr iter_ptr;
struct iterator : public base::iterator {
// Constructor
explicit iterator( iter_ptr it1, iter_ptr it2, data::size_t first_size )
#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
: m_it1( std::move(it1) )
, m_it2( std::move(it2) )
#else
: m_it1( it1 )
, m_it2( it2 )
#endif
, m_first_size( first_size )
{}
// forward iterator interface
virtual T const& operator*() { return m_first_size > 0 ? **m_it1 : **m_it2; }
virtual void operator++() { m_first_size > 0 ? (--m_first_size,++(*m_it1)) : ++(*m_it2); }
private:
// Data members
iter_ptr m_it1;
iter_ptr m_it2;
data::size_t m_first_size;
};
public:
enum { arity = boost::decay<DS1>::type::arity };
#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
// Constructor
join( DS1&& ds1, DS2&& ds2 )
: m_ds1( std::forward<DS1>( ds1 ) )
, m_ds2( std::forward<DS2>( ds2 ) )
{}
// Move constructor
join( join&& j )
: m_ds1( std::forward<DS1>( j.m_ds1 ) )
, m_ds2( std::forward<DS2>( j.m_ds2 ) )
{}
#else
// Constructor
join( DS1 const& ds1, DS2 const& ds2 )
: m_ds1( ds1 )
, m_ds2( ds2 )
{}
#endif
// dataset interface
virtual data::size_t size() const { return m_ds1.size() + m_ds2.size(); }
virtual iter_ptr begin() const { return boost::make_shared<iterator>( m_ds1.begin(),
m_ds2.begin(),
m_ds1.size() ); }
private:
// Data members
DS1 m_ds1;
DS2 m_ds2;
};
//____________________________________________________________________________//
// A joined dataset is a dataset.
template<typename DS1, typename DS2>
struct is_dataset<join<DS1,DS2> > : mpl::true_ {};
//____________________________________________________________________________//
namespace result_of {
//! Result type of the join operation on datasets.
template<typename DS1Gen, typename DS2Gen>
struct join {
typedef monomorphic::join<typename DS1Gen::type,typename DS2Gen::type> type;
};
} // namespace result_of
//____________________________________________________________________________//
template<typename DS1, typename DS2>
inline typename boost::lazy_enable_if_c<is_dataset<DS1>::value && is_dataset<DS2>::value,
result_of::join<mpl::identity<DS1>,mpl::identity<DS2> >
>::type
#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
operator+( DS1&& ds1, DS2&& ds2 )
{
return join<DS1,DS2>( std::forward<DS1>( ds1 ), std::forward<DS2>( ds2 ) );
}
#else
operator+( DS1 const& ds1, DS2 const& ds2 )
{
return join<DS1,DS2>( ds1, ds2 );
}
#endif
//____________________________________________________________________________//
#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
template<typename DS1, typename DS2>
inline typename boost::lazy_enable_if_c<is_dataset<DS1>::value && !is_dataset<DS2>::value,
result_of::join<mpl::identity<DS1>,data::result_of::make<DS2> >
>::type
operator+( DS1&& ds1, DS2&& ds2 )
{
return std::forward<DS1>(ds1) + data::make(std::forward<DS2>(ds2));
}
#else
template<typename DS1, typename DS2>
inline typename boost::lazy_enable_if_c<is_dataset<DS1>::value && !is_dataset<DS2>::value,
result_of::join<mpl::identity<DS1>,data::result_of::make<DS2> >
>::type
operator+( DS1 const& ds1, DS2 const& ds2 )
{
return ds1 + data::make(ds2);
}
#endif
//____________________________________________________________________________//
#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
template<typename DS1, typename DS2>
inline typename boost::lazy_enable_if_c<!is_dataset<DS1>::value && is_dataset<DS2>::value,
result_of::join<data::result_of::make<DS1>,mpl::identity<DS2> >
>::type
operator+( DS1&& ds1, DS2&& ds2 )
{
return data::make(std::forward<DS1>(ds1)) + std::forward<DS2>(ds2);
}
#else
template<typename DS1, typename DS2>
inline typename boost::lazy_enable_if_c<!is_dataset<DS1>::value && is_dataset<DS2>::value,
result_of::join<data::result_of::make<DS1>,mpl::identity<DS2> >
>::type
operator+( DS1 const& ds1, DS2 const& ds2 )
{
return data::make(ds1) + ds2;
}
#endif
} // namespace monomorphic
} // namespace data
} // namespace unit_test
} // namespace boost
#include <boost/test/detail/enable_warnings.hpp>
#endif // BOOST_TEST_DATA_MONOMORPHIC_JOIN_HPP_112711GER
|
