Delete a thread-specific data key
#include <pthread.h> int pthread_key_delete( pthread_key_t key );
Use the -l c option to qcc to link against this library. This library is usually included automatically.
The pthread_key_delete() function deletes the thread-specific data key key that you previously created with pthread_key_create(). The destructor function bound to key isn't called by this function, and won't be called at thread termination. You can call this function from a thread specific data destructor function.
If you need to release any data bound to the key in any threads, do so before deleting the key.
POSIX 1003.1 THR