From cppreference.com
< c‎ | thread
Defined in header <threads.h>
void *tss_get( tss_t tss_key );
(since C11)

Returns the value held in thread-specific storage for the current thread identified by tss_key. Different threads may get different values identified by the same key.

On thread startup (see thrd_create), the values associated with all TSS keys are NULL. Different value may be placed in the thread-specific storage with tss_set.


tss_key - thread-specific storage key, obtained from tss_create and not deleted by tss_delete

Return value

The value on success, NULL on failure.


The POSIX equivalent for this function is pthread_getspecific



  • C11 standard (ISO/IEC 9899:2011):
  • The tss_get function (p: 386)

See also

write to thread-specific storage