Function SafeCopy

y/y.go:107–109

SafeCopy does append(a[:0], src...).

(a, src []byte)

// SafeCopy does append(a[:0], src...).
func SafeCopy(a, src []byte) []byte {
	return append(a[:0], src...)
}

// Copy copies a byte slice and returns the copied slice.
func Copy(a []byte) []byte {