:relfileprefix: ../../../
[#52AB2E64DB4F8B0D4709BE66E4EBD8ADA4BAAF1C]

= Friend operator<<



== Synopsis

Declared in header `</boost/url/ipv4_address.hpp#L291[boost/url/ipv4_address.hpp,window=blank_]>`

[source,cpp,subs="verbatim,macros,-callouts"]
----
friend
ostream&
operator<<(
    ostream& os,
    const xref:boost/urls/ipv4_address.adoc[ipv4_address]& addr);
----