asio C++ library

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Protocol requirements

A protocol must meet the requirements of CopyConstructible types (C++ Std, 20.1.3), and the requirements of Assignable types (C++ Std, 23.1).

In the table below, X denotes a protocol class, and a denotes a value of X.

Table 22. Protocol requirements

expression

return type

assertion/note
pre/post-conditions

X::endpoint

type meeting endpoint requirements

a.family()

int

Returns a value suitable for passing as the domain argument to POSIX socket() (or equivalent).

a.type()

int

Returns a value suitable for passing as the type argument to POSIX socket() (or equivalent).

a.protocol()

int

Returns a value suitable for passing as the protocol argument to POSIX socket() (or equivalent).



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