18 Sockets [socket]

18.2 Requirements [socket.reqmts]

18.2.9 Settable socket option requirements [socket.reqmts.settablesocketoption]

A type X meets the SettableSocketOption requirements if it satisfies the requirements listed below.

In the table below, a denotes a (possibly const) value of type X, p denotes a (possibly const) value of a type that meets the Protocol ([socket.reqmts.protocol]) requirements, and u denotes an identifier.

Table 28 — SettableSocketOption requirements for extensible implementations
expressiontypeassertion/note pre/post-conditions
a.level(p) int Returns a value suitable for passing as the level argument to POSIX setsockopt (or equivalent).
a.name(p) int Returns a value suitable for passing as the option_name argument to POSIX setsockopt (or equivalent).
a.data(p) const void* Returns a pointer suitable for passing as the option_value argument to POSIX setsockopt (or equivalent).
a.size(p) size_t Returns a value suitable for passing as the option_len argument to POSIX setsockopt (or equivalent), after appropriate integer conversion has been performed.