New DatetimeVector #553
Description
The vector containers for Date and Datetime are terrible. I wrote these way before we knew what we were doing here. There is already an open issue #34 on this.
What has happened since is that the Rblpapi and anytime packages needed better representation, and just passed back NumericVector with the proper class attributes set, see e.g. here in anytime.
We could / should do the same in Rcpp. We could possibly even keep the current API for DatetimeVector. Anything I am overlooking so far?
(AFAIK I may well be the only user of these classes in RQuantLib.)