[#D2158D48C656A3B412A7F9AE17EE89DACDE3B0B0]
Return the default port for a known scheme
std::uint16_t default_port(scheme s) noexcept;
This function returns the default port for the known schemes. If the value does not represent a known scheme or the scheme does not represent a protocol, the function returns zero.
The following ports are returned by the function: