Specs

last(prefix()) :: prefix()

Returns the last full length prefix from the set represented by pfx.

Examples

iex> last("10.10.0.0/16")
"10.10.255.255"

# a full address is its own last address
iex> last({10, 10, 10, 1})
{10, 10, 10, 1}

iex> last({{10, 10, 10, 1}, 30})
{{10, 10, 10, 3}, 32}

iex> last(%Pfx{bits: <<10, 10, 10>>, maxlen: 32})
%Pfx{bits: <<10, 10, 10, 255>>, maxlen: 32}

iex> last(%Pfx{bits: <<0xacdc::16, 0x1976::16>>, maxlen: 128})
%Pfx{bits: <<0xACDC::16, 0x1976::16, -1::96>>, maxlen: 128}

iex> last("acdc:1976::/112")
"acdc:1976::ffff"