Function gnunet_sys::GNUNET_TIME_absolute_add

pub unsafe extern "C" fn GNUNET_TIME_absolute_add(
    start: GNUNET_TIME_Absolute, 
    duration: GNUNET_TIME_Relative
) -> GNUNET_TIME_Absolute

Add a given relative duration to the given start time.

@param start some absolute time @param duration some relative time to add @return FOREVER if either argument is FOREVER or on overflow; start+duration otherwise