[#BloombergLP-bdls-FdStreamBuf_FileHandler-clear]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdls.adoc[bdls]::xref:BloombergLP/bdls/FdStreamBuf_FileHandler.adoc[FdStreamBuf_FileHandler]::clear
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:mrdocs:

Release any file descriptor that may be associated with this file handler. If `isOpened` and `willCloseOnReset` are both `true`, the file descriptor will be closed, otherwise it will be left unchanged. Return 0 on success and a non‐zero value if the close fails. This method succeeds with no effect if `isOpened` was `false`. Note that `fileDescriptor` is always `FilesystemUtil::k_INVALID_FD` after this call.

== Synopsis

Declared in `<bdls_fdstreambuf.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
clear();
----


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