Boost C++ Libraries of the most highly regarded and expertly designed C++ library projects in the world. Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

This is the documentation for an old version of Boost. Click here to view this page for the latest version.
ip::basic_endpoint::port (1 of 2 overloads)

Get the port associated with the endpoint. The port number is always in the host's byte order.

unsigned short port() const;