=item tv_interval
-S<tv_interval ( $ref_to_gettimeofday [, $ref_to_later_gettimeofday] )>
+C<tv_interval ( $ref_to_gettimeofday [, $ref_to_later_gettimeofday] )>
Returns the floating seconds between the two times, which should have
been returned by gettimeofday(). If the second argument is omitted,
=item setitimer
-S<setitimer ( $which, $floating_seconds [, $interval_floating_seconds ] )>
+C<setitimer ( $which, $floating_seconds [, $interval_floating_seconds ] )>
Start up an interval timer: after a certain time, a signal is arrives,
and more may keep arriving at certain intervals. To disable a timer,