[plt-scheme] no prehistoric dates?

On Wed, Feb 18, 2009 at 1:24 PM, Matthew Flatt <mflatt at cs.utah.edu> wrote:

> At Wed, 18 Feb 2009 13:22:33 -0800, YC wrote:
> > make-date cannot handle negative years, i.e. no BC time.
> >
> > > (make-date 0 0 0 1 1 -1 0 0 #f 0)
> > make-date: expected argument of type <nonnegative exact integer>; given
> > -1
> >
> > Is there a reason for such restriction?
>
> None that I can see, so I'll change the `date' structure type to allow
> it.
>

Thanks.
yc
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