[#BloombergLP-bslmt-ThreadUtil-getSpecific]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslmt.adoc[bslmt]::xref:BloombergLP/bslmt/ThreadUtil.adoc[ThreadUtil]::getSpecific
:relfileprefix: ../../../
:mrdocs:

Return the calling thread's value associated with the specified key.

== Synopsis

Declared in `<bslmt_threadutil.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
void*
getSpecific(xref:BloombergLP/bslmt/ThreadUtil/Key.adoc[Key] const& key);
----

== Description

Return the thread‐local value associated with the specified `key`. A `key` is shared among all threads and the value associated with `key` for each thread is 0 until it is set by that thread using `setSpecific`. The behavior is undefined unless this method is called outside any thread key cleanup function associated with any key by `createKey`, `key` was obtained from a successful call to `createKey`, and `key` has not been deleted.

== Return Value

thread‐local value associated with `key` for the calling thread

== Parameters

[cols="1,4"]
|===
| Name| Description
| *key*
| process‐wide thread‐local key to query
|===


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