IP.is_ipv4
You're seeing just the macro
is_ipv4
, go back to IP module for more information.
true if the argument is an ipv4 datatype
usable in guards.
iex> IP.is_ipv4({10, 0, 0, 1})
true
iex> IP.is_ipv4(:foo)
false
iex> IP.is_ipv4({256, 0, 0, 0})
false