1
2 package go2
3
4 import (
5 "hash/fnv"
6 "math"
7
8 "golang.org/x/exp/constraints"
9 )
10
11 func Pointer[T any](v T) *T {
12 return &v
13 }
14
15 func Min[T constraints.Ordered](a, b T) T {
16 if a < b {
17 return a
18 }
19 return b
20 }
21
22 func Max[T constraints.Ordered](a, b T) T {
23 if a > b {
24 return a
25 }
26 return b
27 }
28
29 func StringToIntHash(s string) int {
30 h := fnv.New32a()
31 h.Write([]byte(s))
32 return int(h.Sum32())
33 }
34
35 func Contains[T comparable](els []T, el T) bool {
36 for _, el2 := range els {
37 if el2 == el {
38 return true
39 }
40 }
41 return false
42 }
43
44 func Filter[T any](els []T, fn func(T) bool) []T {
45 out := []T{}
46 for _, el := range els {
47 if fn(el) {
48 out = append(out, el)
49 }
50 }
51 return out
52 }
53
54 func IntMax(x, y int) int {
55 return int(math.Max(float64(x), float64(y)))
56 }
57
58 func IntMin(x, y int) int {
59 return int(math.Min(float64(x), float64(y)))
60 }
61
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