interoperability between difftime and Duration objects

[andreas50]

I noticed some inconsistent date arithmetic behavior:

t1 <- Sys.time()
t2 <- t1 + dhours(1)
(t2 - t1) / dseconds(60) > 1    # TRUE
(t2 - t1) > dseconds(60)        # FALSE, but ought to be TRUE or at least give an error

[vspinu]

That's a bug indeed. A workaround for now is to wrap it into as.duration

as.duration(t2 - t1) > dseconds(60)