[#BloombergLP-bslmt-ThreadUtilImpl-04-getSpecific]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslmt.adoc[bslmt]::xref:BloombergLP/bslmt/ThreadUtilImpl-04.adoc[ThreadUtilImpl<Platform::PosixThreads>]::getSpecific
:relfileprefix: ../../../
:mrdocs:

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

== Synopsis

Declared in `<bslmt_threadutilimpl_pthread.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
void*
getSpecific(xref:BloombergLP/bslmt/ThreadUtilImpl-04/Key.adoc[Key] const& key);
----

== Description

Return the value associated with the specified thread‐specific `key`. Note that if the key is not valid, a value of zero is returned, which is indistinguishable from a valid key with a 0 value.

== Return Value

the thread‐local value associated with `key`

== Parameters

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


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