[#boost-urls-operator_lshift-09]
= xref:boost.adoc[boost]::xref:boost/urls.adoc[urls]::operator<<
:relfileprefix: ../../
:mrdocs:

Format to an output stream

== Synopsis

Declared in `<https://www.github.com/boostorg/url/blob/develop/include/boost/url/params_encoded_base.hpp#L556[boost/url/params_encoded_base.hpp]>`

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

== Description

Any percent‐escapes are emitted as‐is; no decoding is performed.

== Complexity
Linear in `ps.buffer().size()`.

== Effects
[,cpp]
----
return os << ps.buffer();
----
== Return Value

A reference to the output stream, for chaining

== Parameters

[cols=2]
|===
| Name
| Description
| *os*
| The output stream to write to
| *qp*
| The params to write
|===


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