[#BloombergLP-bdld-operator_lshift-0b3]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdld.adoc[bdld]::operator<<
:relfileprefix: ../../
:mrdocs:

Write the string representation of `rhs` to `stream`.

== Synopsis

Declared in `<bdld_datum.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
std::ostream&
operator<<(
    std::ostream& stream,
    xref:BloombergLP/bdld/Datum/DataType.adoc[Datum::DataType] rhs);
----

== Description

Write the string representation of the specified enumeration `rhs` to the specified `stream` in a single‐line format, and return a reference to the modifiable `stream`. See `dataTypeToAscii` for what constitutes the string representation of a `Datum::DataType` value.

== Return Value

a reference to `stream`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *stream*
| output stream
| *rhs*
| value to write
|===


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