neo-go/pkg/wire/util/slice/slice.go

package slice

// Reverse return a reversed version of the given byte slice.
func Reverse(b []byte) []byte {
	// Protect from big.Ints that have 1 len bytes.
	if len(b) < 2 {
		return b
	}

	dest := make([]byte, len(b))
	for i, j := 0, len(b)-1; i < j+1; i, j = i+1, j-1 {
		dest[i], dest[j] = b[j], b[i]
	}
	return dest
}