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
use
std::
{
ops::
{
RangeBounds,
Bound
},
cmp::
PartialOrd
};
pub
fn clamp<
N:
PartialOrd +
Copy,
R:
RangeBounds<
N
>
>(
number:
N,
range:
R
) ->
N {
match
range
.contains(
&number
) {
false =>
{
(
match
range
.start_bound() {
Bound::
Included(
&to
) =>
match
number <= to {
false =>
None,
true =>
Some(
to
)
},
Bound::
Excluded(
&to
) =>
match
number < to {
false =>
None,
true =>
Some(
to
)
},
Bound::
Unbounded =>
None
}
)
.or(
match
range
.end_bound() {
Bound::
Included(
&to
) =>
match
number >= to {
false =>
None,
true =>
Some(
to
)
},
Bound::
Excluded(
&to
) =>
match
number > to {
false =>
None,
true =>
Some(
to
)
},
Bound::
Unbounded =>
None
}
)
.unwrap()
},
true =>
number
}
}