61 lines
931 B
Go
61 lines
931 B
Go
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// Package go2 contains general utility helpers that should've been in Go. Maybe they'll be in Go 2.0.
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package go2
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import (
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"hash/fnv"
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"math"
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"golang.org/x/exp/constraints"
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)
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func Pointer[T any](v T) *T {
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return &v
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}
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func Min[T constraints.Ordered](a, b T) T {
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if a < b {
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return a
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}
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return b
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}
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func Max[T constraints.Ordered](a, b T) T {
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if a > b {
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return a
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}
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return b
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}
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func StringToIntHash(s string) int {
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h := fnv.New32a()
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h.Write([]byte(s))
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return int(h.Sum32())
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}
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func Contains[T comparable](els []T, el T) bool {
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for _, el2 := range els {
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if el2 == el {
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return true
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}
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}
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return false
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}
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func Filter[T any](els []T, fn func(T) bool) []T {
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out := []T{}
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for _, el := range els {
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if fn(el) {
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out = append(out, el)
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}
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}
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return out
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}
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func IntMax(x, y int) int {
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return int(math.Max(float64(x), float64(y)))
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}
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func IntMin(x, y int) int {
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return int(math.Min(float64(x), float64(y)))
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}
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