summaryrefslogtreecommitdiff
path: root/boost/units/detail/one.hpp
blob: 4cadc2c5fcdb81804da5c2ed616fb3d1de175cfe (plain)
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
// Boost.Units - A C++ library for zero-overhead dimensional analysis and 
// unit/quantity manipulation and conversion
//
// Copyright (C) 2003-2008 Matthias Christian Schabel
// Copyright (C) 2008 Steven Watanabe
//
// 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)

#ifndef BOOST_UNITS_DETAIL_ONE_HPP
#define BOOST_UNITS_DETAIL_ONE_HPP

#include <boost/units/operators.hpp>

namespace boost {

namespace units {

struct one { one() {} };

// workaround for pathscale.
inline one make_one() {
    one result;
    return(result);
}

template<class T>
struct multiply_typeof_helper<one, T>
{
    typedef T type;
};

template<class T>
struct multiply_typeof_helper<T, one>
{
    typedef T type;
};

template<>
struct multiply_typeof_helper<one, one>
{
    typedef one type;
};

template<class T>
inline T operator*(const one&, const T& t)
{
    return(t);
}

template<class T>
inline T operator*(const T& t, const one&)
{
    return(t);
}

inline one operator*(const one&, const one&)
{
    one result;
    return(result);
}

template<class T>
struct divide_typeof_helper<T, one>
{
    typedef T type;
};

template<class T>
struct divide_typeof_helper<one, T>
{
    typedef T type;
};

template<>
struct divide_typeof_helper<one, one>
{
    typedef one type;
};

template<class T>
inline T operator/(const T& t, const one&)
{
    return(t);
}

template<class T>
inline T operator/(const one&, const T& t)
{
    return(1/t);
}

inline one operator/(const one&, const one&)
{
    one result;
    return(result);
}

template<class T>
inline bool operator>(const boost::units::one&, const T& t) {
    return(1 > t);
}

} // namespace units

} // namespace boost

#endif