Function SockAddrIPv4.this

ref this (
  core.sys.posix.arpa.inet.in_addr addr,
  ushort port = cast(ushort)0u
) nothrow @nogc @safe;

ref this (
  string addr,
  ushort port = cast(ushort)0u
) @nogc @trusted;

ref this (
  const(core.sys.posix.sys.socket.sockaddr*) sa,
  uint length
) nothrow @nogc @trusted;

ref this (
  IPv4 addr,
  ushort port = cast(ushort)0u
) nothrow @nogc @safe;