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

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.
>
>
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