[#boost-urls-operator_lshift-0a]
= xref:boost/urls/operator_lshift-0a.adoc[boost::urls::operator<<]
:relfileprefix: ../../
:mrdocs:

Format the address to an output stream.

== Synopsis

Declared in `<https://www.github.com/boostorg/url/blob/develop/include/boost/url/ipv4_address.hpp#L361[boost/url/ipv4_address.hpp]>`

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

== Description

IPv4 addresses written to output streams are written in their dotted decimal format.

Format the address to an output stream.

IPv4 addresses written to output streams are written in their dotted decimal format.

Format the address to an output stream.

IPv4 addresses written to output streams are written in their dotted decimal format.

== Return Value

The output stream.

== Parameters

[cols=2]
|===
| Name
| Description
| *os*
| The output stream.
| *addr*
| The address to format.
|===


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