NetAddr.mask_to_length_2
You're seeing just the function
mask_to_length_2
, go back to NetAddr module for more information.
Specs
mask_to_length_2(binary()) :: {:ok, non_neg_integer()} | {:error, :einval}
Convert address_mask
to an address length.
Unlike mask_to_length/1
, this function returns
{:ok, length}
, on success, and {:error, :einval}
,
otherwise. In particular, this function rejects a mask
that contains non-consecutive ones bits.
Examples
iex> NetAddr.mask_to_length_2(<<255,255,248,0>>)
{:ok, 21}
iex> NetAddr.mask_to_length_2(<<14,249,150,22>>)
{:error, :einval}