Description

   This routine obtains and returns the system-specific status
   value from the status exception object specified in the exception
   argument. This value must have already been associated with the
   exception object using the pthread_exc_set_status_np() routine.

   In a program that uses Threads Library status exceptions, use
   this routine within a CATCH or CATCH_ALL code block to obtain the
   status code value associated with a caught exception. Note that
   any exception objects set to the same status value are considered
   equivalent by the Threads Library.