The duration to shift the interval by.
auto interval1 = PosInfInterval!Date(Date(1996, 1, 2)); auto interval2 = PosInfInterval!Date(Date(1996, 1, 2)); interval1.shift(dur!"days"(50)); assert(interval1 == PosInfInterval!Date(Date(1996, 2, 21))); interval2.shift(dur!"days"(-50)); assert(interval2 == PosInfInterval!Date(Date(1995, 11, 13)));
Shifts the begin of this interval forward or backwards in time by the given duration (a positive duration shifts the interval forward; a negative duration shifts it backward). Effectively, it does begin += duration.