[#mp_units-operator_lshift-04]
= xref:mp_units.adoc[mp_units]::operator<<
:relfileprefix: ../
:mrdocs:

Stream insertion operator

== Synopsis

Declared in `<mp‐units/framework/dimension.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    typename CharT,
    typename Traits,
    xref:mp_units/Unit.adoc[Unit] D>
std::basic_ostream<CharT, Traits>&
operator<<(
    std::basic_ostream<CharT, Traits>& os,
    D d);
----

== Return Value

Reference to the current output stream

== Parameters

[cols=2]
|===
| Name
| Description
| *os*
| An output stream
| *d*
| The object to output
|===


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