调整Request C.BHFree的位置

liuxiaolong

2021-07-20 58d904a328c0d849769b483e901a0be9426b8209

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
//---------------------------------------------------------------------------//
// Copyright (c) 2013 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_LAMBDA_RESULT_OF_HPP
#define BOOST_COMPUTE_LAMBDA_RESULT_OF_HPP
 
#include <boost/mpl/vector.hpp>
#include <boost/proto/proto.hpp>
 
#include <boost/compute/type_traits/common_type.hpp>
 
namespace boost {
namespace compute {
namespace lambda {
 
namespace mpl = boost::mpl;
namespace proto = boost::proto;
 
// meta-function returning the result type of a lambda expression
template<class Expr,
         class Args = void,
         class Tags = typename proto::tag_of<Expr>::type>
struct result_of
{
};
 
// terminals
template<class Expr, class Args>
struct result_of<Expr, Args, proto::tag::terminal>
{
    typedef typename proto::result_of::value<Expr>::type type;
};
 
// binary operators
#define BOOST_COMPUTE_LAMBDA_RESULT_OF_BINARY_OPERATOR(tag) \
    template<class Expr, class Args> \
    struct result_of<Expr, Args, tag> \
    { \
        typedef typename proto::result_of::child_c<Expr, 0>::type left; \
        typedef typename proto::result_of::child_c<Expr, 1>::type right; \
        \
        typedef typename boost::common_type< \
            typename ::boost::compute::lambda::result_of< \
                         left, \
                         Args, \
                         typename proto::tag_of<left>::type>::type, \
            typename ::boost::compute::lambda::result_of< \
                         right, \
                         Args, \
                         typename proto::tag_of<right>::type>::type \
         >::type type; \
    };
 
BOOST_COMPUTE_LAMBDA_RESULT_OF_BINARY_OPERATOR(proto::tag::plus)
BOOST_COMPUTE_LAMBDA_RESULT_OF_BINARY_OPERATOR(proto::tag::minus)
BOOST_COMPUTE_LAMBDA_RESULT_OF_BINARY_OPERATOR(proto::tag::multiplies)
BOOST_COMPUTE_LAMBDA_RESULT_OF_BINARY_OPERATOR(proto::tag::divides)
BOOST_COMPUTE_LAMBDA_RESULT_OF_BINARY_OPERATOR(proto::tag::modulus)
BOOST_COMPUTE_LAMBDA_RESULT_OF_BINARY_OPERATOR(proto::tag::bitwise_and)
BOOST_COMPUTE_LAMBDA_RESULT_OF_BINARY_OPERATOR(proto::tag::bitwise_or)
BOOST_COMPUTE_LAMBDA_RESULT_OF_BINARY_OPERATOR(proto::tag::bitwise_xor)
 
// comparision operators
#define BOOST_COMPUTE_LAMBDA_RESULT_OF_COMPARISON_OPERATOR(tag) \
    template<class Expr, class Args> \
    struct result_of<Expr, Args, tag> \
    { \
        typedef bool type; \
    };
 
BOOST_COMPUTE_LAMBDA_RESULT_OF_COMPARISON_OPERATOR(proto::tag::less)
BOOST_COMPUTE_LAMBDA_RESULT_OF_COMPARISON_OPERATOR(proto::tag::greater)
BOOST_COMPUTE_LAMBDA_RESULT_OF_COMPARISON_OPERATOR(proto::tag::less_equal)
BOOST_COMPUTE_LAMBDA_RESULT_OF_COMPARISON_OPERATOR(proto::tag::greater_equal)
BOOST_COMPUTE_LAMBDA_RESULT_OF_COMPARISON_OPERATOR(proto::tag::equal_to)
BOOST_COMPUTE_LAMBDA_RESULT_OF_COMPARISON_OPERATOR(proto::tag::not_equal_to)
BOOST_COMPUTE_LAMBDA_RESULT_OF_COMPARISON_OPERATOR(proto::tag::logical_and)
BOOST_COMPUTE_LAMBDA_RESULT_OF_COMPARISON_OPERATOR(proto::tag::logical_or)
 
// assignment operator
template<class Expr, class Args>
struct result_of<Expr, Args, proto::tag::assign>
{
    typedef typename proto::result_of::child_c<Expr, 0>::type left;
    typedef typename proto::result_of::child_c<Expr, 1>::type right;
 
    typedef typename ::boost::compute::lambda::result_of<
        right, Args, typename proto::tag_of<right>::type
    >::type type;
};
 
// functions
template<class Expr, class Args>
struct result_of<Expr, Args, proto::tag::function>
{
    typedef typename proto::result_of::child_c<Expr, 0>::type func_expr;
    typedef typename proto::result_of::value<func_expr>::type func;
 
    typedef typename func::template lambda_result<Expr, Args>::type type;
};
 
} // end lambda namespace
} // end compute namespace
} // end boost namespace
 
#endif // BOOST_COMPUTE_LAMBDA_RESULT_OF_HPP