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
|
/*
* Copyright 2008-2018 NVIDIA Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*! \file tuple.h
* \brief A type encapsulating a heterogeneous collection of elements.
*/
/*
* Copyright (C) 1999, 2000 Jaakko Järvi (jaakko.jarvi@cs.utu.fi)
*
* Distributed under the Boost Software License, Version 1.0.
* (See accompanying NOTICE file for the complete license)
*
* For more information, see http://www.boost.org
*/
#pragma once
#include <thrust/detail/config.h>
#if defined(_CCCL_IMPLICIT_SYSTEM_HEADER_GCC)
# pragma GCC system_header
#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_CLANG)
# pragma clang system_header
#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_MSVC)
# pragma system_header
#endif // no system header
#include <cuda/std/tuple>
#include <cuda/std/utility>
#include <tuple>
THRUST_NAMESPACE_BEGIN
// define null_type for backwards compatability
struct null_type {};
__host__ __device__ inline
bool operator==(const null_type&, const null_type&) { return true; }
__host__ __device__ inline
bool operator>=(const null_type&, const null_type&) { return true; }
__host__ __device__ inline
bool operator<=(const null_type&, const null_type&) { return true; }
__host__ __device__ inline
bool operator!=(const null_type&, const null_type&) { return false; }
__host__ __device__ inline
bool operator<(const null_type&, const null_type&) { return false; }
__host__ __device__ inline
bool operator>(const null_type&, const null_type&) { return false; }
/*! \addtogroup utility
* \{
*/
/*! \addtogroup tuple
* \{
*/
/*! This metafunction returns the type of a
* \p tuple's <tt>N</tt>th element.
*
* \tparam N This parameter selects the element of interest.
* \tparam T A \c tuple type of interest.
*
* \see pair
* \see tuple
*/
template <size_t N, class T>
using tuple_element = ::cuda::std::tuple_element<N, T>;
/*! This metafunction returns the number of elements
* of a \p tuple type of interest.
*
* \tparam T A \c tuple type of interest.
*
* \see pair
* \see tuple
*/
template <class T>
using tuple_size = ::cuda::std::tuple_size<T>;
/*! \brief \p tuple is a class template that can be instantiated with up to ten
* arguments. Each template argument specifies the type of element in the \p
* tuple. Consequently, tuples are heterogeneous, fixed-size collections of
* values. An instantiation of \p tuple with two arguments is similar to an
* instantiation of \p pair with the same two arguments. Individual elements
* of a \p tuple may be accessed with the \p get function.
*
* \tparam TN The type of the <tt>N</tt> \c tuple element. Thrust's \p tuple
* type currently supports up to ten elements.
*
* The following code snippet demonstrates how to create a new \p tuple object
* and inspect and modify the value of its elements.
*
* \code
* #include <thrust/tuple.h>
* #include <iostream>
*
* int main() {
* // Create a tuple containing an `int`, a `float`, and a string.
* thrust::tuple<int, float, const char*> t(13, 0.1f, "thrust");
*
* // Individual members are accessed with the free function `get`.
* std::cout << "The first element's value is " << thrust::get<0>(t) << std::endl;
*
* // ... or the member function `get`.
* std::cout << "The second element's value is " << t.get<1>() << std::endl;
*
* // We can also modify elements with the same function.
* thrust::get<0>(t) += 10;
* }
* \endcode
*
* \see pair
* \see get
* \see make_tuple
* \see tuple_element
* \see tuple_size
* \see tie
*/
template <class... T>
using tuple = ::cuda::std::tuple<T...>;
using ::cuda::std::get;
using ::cuda::std::make_tuple;
using ::cuda::std::tie;
/*! \endcond
*/
/*! \} // tuple
*/
/*! \} // utility
*/
THRUST_NAMESPACE_END
_LIBCUDACXX_BEGIN_NAMESPACE_STD
template<>
struct tuple_size<tuple<THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type>> : tuple_size<tuple<>> {};
template<class T0>
struct tuple_size<tuple<T0, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type>> : tuple_size<tuple<T0>> {};
template<class T0, class T1>
struct tuple_size<tuple<T0, T1, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type>> : tuple_size<tuple<T0, T1>> {};
template<class T0, class T1, class T2>
struct tuple_size<tuple<T0, T1, T2, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type>> : tuple_size<tuple<T0, T1, T2>> {};
template<class T0, class T1, class T2, class T3>
struct tuple_size<tuple<T0, T1, T2, T3, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type>> : tuple_size<tuple<T0, T1, T2, T3>> {};
template<class T0, class T1, class T2, class T3, class T4>
struct tuple_size<tuple<T0, T1, T2, T3, T4, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type>> : tuple_size<tuple<T0, T1, T2, T3, T4>> {};
template<class T0, class T1, class T2, class T3, class T4, class T5>
struct tuple_size<tuple<T0, T1, T2, T3, T4, T5, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type>> : tuple_size<tuple<T0, T1, T2, T3, T4, T5>> {};
template<class T0, class T1, class T2, class T3, class T4, class T5, class T6>
struct tuple_size<tuple<T0, T1, T2, T3, T4, T5, T6, THRUST_NS_QUALIFIER::null_type, THRUST_NS_QUALIFIER::null_type>> : tuple_size<tuple<T0, T1, T2, T3, T4, T5, T6>> {};
template<class T0, class T1, class T2, class T3, class T4, class T5, class T6, class T7>
struct tuple_size<tuple<T0, T1, T2, T3, T4, T5, T6, T7, THRUST_NS_QUALIFIER::null_type>> : tuple_size<tuple<T0, T1, T2, T3, T4, T5, T6, T7>> {};
_LIBCUDACXX_END_NAMESPACE_STD
|
