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

Stream insertion operator

== Synopsis

Declared in `<mp‐units/utility/safe_int.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
std::basic_ostream<CharT, Traits>&
operator<<(
    std::basic_ostream<CharT, Traits>& os,
    xref:mp_units/utility/safe_int-07.adoc[safe_int] v);
----

== Return Value

Reference to the current output stream

== Parameters

[cols="1,4"]
|===
| Name| Description
| *os*
| An output stream
| *v*
| The object to output
|===


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