skl/arena.go
func newArena(n int64) *Arena {
	// Don't store data at position 0 in order to reserve offset=0 as a kind
	// of nil pointer.
	out := &Arena{
		n:   1,
		buf: make([]byte, n),
	}
	return out
}
func newArena(n int64) *Arena {
	// Don't store data at position 0 in order to reserve offset=0 as a kind
	// of nil pointer.
	out := &Arena{
		n:   1,
		buf: make([]byte, n),
	}
	return out
}
// newArena returns a new arena.