File: s2b_old.go

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golang-github-valyala-fasthttp 1%3A1.59.0-2
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//go:build !go1.20

package fasthttp

import (
	"reflect"
	"unsafe"
)

// s2b converts string to a byte slice without memory allocation.
//
// Note it may break if string and/or slice header will change
// in the future go versions.
func s2b(s string) (b []byte) {
	bh := (*reflect.SliceHeader)(unsafe.Pointer(&b))
	sh := (*reflect.StringHeader)(unsafe.Pointer(&s))
	bh.Data = sh.Data
	bh.Cap = sh.Len
	bh.Len = sh.Len
	return b
}