This port is set to the string, which must contain only digits or be empty. An empty port string is distinct from having no port.
assert( url( "http://www.example.com" ).set_port( "8080" ).authority().buffer() == "www.example.com:8080" );
this->has_port() == true && this->port_number() == n && this->port() == std::to_string(n)
Strong guarantee. Calls to allocate may throw. Exceptions thrown on invalid input.
port = *DIGIT
*this
| Name | Description |
|---|---|
| s | The port string to set. |