[racket] the type of current-inexact-milliseconds

On 2015-01-26 16:52:02 -0500, Alexander D. Knauth wrote:
> Does current-inexact-milliseconds always return a positive flonum?
> Would it ever not return a positive flonum, and if it doesn’t, should
> the type of it in typed racket be changed?

It can return a negative number if you go back far enough in time:

  $ LD_PRELOAD=/usr/lib/x86_64-linux-gnu/faketime/libfaketime.so.1 FAKETIME="-50y" racket
  Welcome to Racket v6.1.1.6.
  -> (current-inexact-milliseconds)
  -154410580137.768
  -> (require racket/date)
  -> (date->string (current-date))
  "Monday, February 8th, 1965"

Cheers,
Asumu