Boost C++ Libraries

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

Construct a protocol object for a specific address family and protocol.

datagram_protocol(
    int address_family,
    int socket_protocol);
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Construct a generic protocol object from a specific protocol.

template<
    typename Protocol>
datagram_protocol(
    const Protocol & source_protocol);
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