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

Associate the specified thread‐local `value` with the specified process‐wide `key`. Return 0 on success, and a non‐zero value otherwise. The value associated with a thread for a given key is 0 until it has been 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.

== Synopsis

Declared in `<bslmt_threadutil.h>`

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


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