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Internet protocol requirements

An internet protocol must meet the requirements for a protocol as well as the additional requirements listed below.

In the table below, X denotes an internet protocol class, a denotes a value of type X, and b denotes a value of type X.

Table15.InternetProtocol requirements

expression

return type

assertion/note
pre/post-conditions

X::resolver

ip::basic_resolver<X>

The type of a resolver for the protocol.

X::v4()

X

Returns an object representing the IP version 4 protocol.

X::v6()

X

Returns an object representing the IP version 6 protocol.

a == b

convertible to bool

Returns whether two protocol objects are equal.

a != b

convertible to bool

Returns !(a == b).



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