[#CRYPTO_THREAD_LOCAL]
= CRYPTO_THREAD_LOCAL
:mrdocs:

Platform thread‐local storage key used by CRYPTO_THREAD_*_local().

== Synopsis

Declared in `<openssl/crypto.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
typedef pthread_key_t CRYPTO_THREAD_LOCAL;
----

== Description

On POSIX builds this is pthread_key_t; Windows builds use DWORD; no‐thread fallbacks use unsigned int.


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