[#boost-urls-ipv6_address-is_v4_mapped]
= xref:boost.adoc[boost]::xref:boost/urls.adoc[urls]::xref:boost/urls/ipv6_address.adoc[ipv6&lowbar;address]::is&lowbar;v4&lowbar;mapped
:relfileprefix: ../../../
:mrdocs:


Return true if the address is a mapped IPv4 address

== Synopsis


Declared in `&lt;https://www.github.com/boostorg/url/blob/develop/include/boost/url/ipv6_address.hpp#L288[boost&sol;url&sol;ipv6&lowbar;address&period;hpp]&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
is&lowbar;v4&lowbar;mapped() const noexcept;
----

== Description


This address type is used to represent the        addresses of IPv4 nodes as IPv6 addresses&period;


=== Specification

* link:https://datatracker.ietf.org/doc/html/rfc4291#section-2.5.5.2[            2&period;5&period;5&period;2&period; IPv4&hyphen;Mapped IPv6 Address (rfc4291)]





[.small]#Created with https://www.mrdocs.com[MrDocs]#
