[plt-dev] `unsafe-fl' and unboxing

`inexact-real?'

At Sat, 3 Oct 2009 12:47:35 -0400, Doug Williams wrote:
> Is there an existing contract to check for a float? For example, mean would
> now be guaranteed to return a float instead of a real. It would be nice to
> specify this is the contract.
> 
> On Sat, Oct 3, 2009 at 12:36 PM, Matthew Flatt <mflatt at cs.utah.edu> wrote:
> 
> > At Sat, 3 Oct 2009 12:29:01 -0400, Doug Williams wrote:
> > > Are the basic unsafe-fl, unsafe-fx, and unsafe-vector-ref operations
> > > included in 4.2.2?
> >
> > Yes --- except for `unsafe-fx->fl', which is new in 4.2.2.3.
> >
> >