[#CNetAddr-IsRFC1918]
= xref:CNetAddr.adoc[CNetAddr]::IsRFC1918
:relfileprefix: ../
:mrdocs:

Whether this is an IPv4 private&hyphen;network address (10&sol;8, 192&period;168&sol;16, 172&period;16&sol;12)&period;

== Synopsis

Declared in `&lt;netaddress&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
IsRFC1918() const;
----

== Return Value

True when the address is in an IPv4 private&hyphen;network range&period;


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