At Sun, 26 Dec 2010 10:49:45 -0600,
Matthew Flatt wrote:
> > - determining whether a floating point number is a double or a single.
>
> I don't think there's any predicate for that.
flonum? returns true for double-precision floats, and
(lambda (x) (and (inexact-real? x) (not (flonum? x
return
Whoops looks like I was wrong there. Please disregard.
Robby
On Sunday, December 26, 2010, Robby Findler wrote:
> In racket you'd use this function, fwiw:
>
> (λ (n) (bytes-length (string->bytes/utf-8 (format "~s" n
>
> (or possibly a variant of it depending on the encoding you were using)
At Sun, 26 Dec 2010 09:52:20 +0100, Wolfgang De Meuter wrote:
> I'm struggling with chapter 2 of the R6RS libraries (relation between Scheme
> data objects and bytevectors). Does anyone know a clean&simple way for
> - determining the number of bytes needed to push an arbitrary-sized number in
> a
In racket you'd use this function, fwiw:
(λ (n) (bytes-length (string->bytes/utf-8 (format "~s" n
(or possibly a variant of it depending on the encoding you were using).
Robby
On Sun, Dec 26, 2010 at 2:52 AM, Wolfgang De Meuter wrote:
> Hello
>
> I'm struggling with chapter 2 of the R6RS
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