TYPE_BIT
(TYPE_BIT(type) * 302 / 1000 + 1)
((TYPE_BIT(type) - 1) * 302 / 1000 + 1 + 1)
if (TYPE_BIT(time_t) - TYPE_SIGNED(time_t) < SECSPERREPEAT_BITS)
((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + \
#ifndef TYPE_BIT