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

Write the specified `value` to the specified `stream`.

== Synopsis

Declared in `<bdls_filesystemutil.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
std::ostream&
operator<<(
    std::ostream& stream,
    xref:BloombergLP/bdls/FilesystemUtil/FileIOPolicy.adoc[FilesystemUtil::FileIOPolicy] value);
----

== Description

Output the specified `value` to the specified `stream`, in human‐readable form. If `value` is not a valid `FileIOPolicy` value, report that it is invalid and output it as an integer.

== Return Value

a reference to `stream`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *stream*
| output stream
| *value*
| file I/O policy to write
|===


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