63e88f80
 Hu Chunming
提交三方库
|
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
|
//---------------------------------------------------------------------------//
// Copyright (c) 2013-2014 Kyle Lutz <kyle.r.lutz@gmail.com>
//
// 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://boostorg.github.com/compute for more information.
//---------------------------------------------------------------------------//
#ifndef BOOST_COMPUTE_UTILITY_DIM_HPP
#define BOOST_COMPUTE_UTILITY_DIM_HPP
#include <boost/compute/config.hpp>
#include <boost/compute/utility/extents.hpp>
namespace boost {
namespace compute {
#ifndef BOOST_COMPUTE_NO_VARIADIC_TEMPLATES
/// The variadic \c dim() function provides a concise syntax for creating
/// \ref extents objects.
///
/// For example,
/// \code
/// extents<2> region = dim(640, 480); // region == (640, 480)
/// \endcode
///
/// \see \ref extents "extents<N>"
template<class... Args>
inline extents<sizeof...(Args)> dim(Args... args)
{
return extents<sizeof...(Args)>({ static_cast<size_t>(args)... });
}
#if BOOST_WORKAROUND(BOOST_MSVC, <= 1800)
// for some inexplicable reason passing one parameter to 'dim' variadic template
// generates compile error on msvc 2013 update 4
template<class T>
inline extents<1> dim(T arg)
{
return extents<1>(static_cast<size_t>(arg));
}
#endif // BOOST_WORKAROUND(BOOST_MSVC, <= 1800)
#else
// dim() function definitions for non-c++11 compilers
#define BOOST_COMPUTE_DETAIL_ASSIGN_DIM(z, n, var) \
var[n] = BOOST_PP_CAT(e, n);
#define BOOST_COMPUTE_DETAIL_DEFINE_DIM(z, n, var) \
inline extents<n> dim(BOOST_PP_ENUM_PARAMS(n, size_t e)) \
{ \
extents<n> exts; \
BOOST_PP_REPEAT(n, BOOST_COMPUTE_DETAIL_ASSIGN_DIM, exts) \
return exts; \
}
BOOST_PP_REPEAT(BOOST_COMPUTE_MAX_ARITY, BOOST_COMPUTE_DETAIL_DEFINE_DIM, ~)
#undef BOOST_COMPUTE_DETAIL_ASSIGN_DIM
#undef BOOST_COMPUTE_DETAIL_DEFINE_DIM
#endif // BOOST_COMPUTE_NO_VARIADIC_TEMPLATES
/// \internal_
template<size_t N>
inline extents<N> dim()
{
return extents<N>();
}
} // end compute namespace
} // end boost namespace
#endif // BOOST_COMPUTE_UTILITY_DIM_HPP
|
