blob: 511de1e50712cd733cfb934b7ba3585f0a164ee7 (
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
|
package util
// #include <unistd.h>
import "C"
import (
"os"
"time"
)
// Max returns the largest integer
func Max(first int, items ...int) int {
max := first
for _, item := range items {
if item > max {
max = item
}
}
return max
}
// Max32 returns the smallest 32-bit integer
func Min32(first int32, second int32) int32 {
if first <= second {
return first
}
return second
}
// Max32 returns the largest 32-bit integer
func Max32(first int32, second int32) int32 {
if first > second {
return first
}
return second
}
// Constrain32 limits the given 32-bit integer with the upper and lower bounds
func Constrain32(val int32, min int32, max int32) int32 {
if val < min {
return min
}
if val > max {
return max
}
return val
}
// Constrain limits the given integer with the upper and lower bounds
func Constrain(val int, min int, max int) int {
if val < min {
return min
}
if val > max {
return max
}
return val
}
// DurWithin limits the given time.Duration with the upper and lower bounds
func DurWithin(
val time.Duration, min time.Duration, max time.Duration) time.Duration {
if val < min {
return min
}
if val > max {
return max
}
return val
}
func Between(val int, min int, max int) bool {
return val >= min && val <= max
}
// IsTty returns true is stdin is a terminal
func IsTty() bool {
return int(C.isatty(C.int(os.Stdin.Fd()))) != 0
}
func TrimRight(runes *[]rune) []rune {
var i int
for i = len(*runes) - 1; i >= 0; i-- {
char := (*runes)[i]
if char != ' ' && char != '\t' {
break
}
}
return (*runes)[0 : i+1]
}
|