[r6rs-discuss] Confusion over |p

From: Alan Watson <alan>
Date: Thu, 28 Jun 2007 17:23:35 -0500

Alan Watson wrote:
> Furthermore, suppose I have a Scheme with that uses both IEEE
> single-precision and IEEE double-precision formats for real numbers.
> Suppose I write x|24. If x is a normalized number, the implementation
> "should" represent it using a single-precision format. If x is a
> denormalized number, the representation "should" represent it using a
> double-precision format (because denormalized single-precision numbers
> have fewer than 24 bits of precision).

And, better yet, in a Scheme has double and extended precision formats,
if I write "x" (without an explicit precision and with an e exponent)
and if x is a denormalized double-precision value, then the
implementation "should" use an extended-precision format.

Regards,

Alan
Received on Thu Jun 28 2007 - 18:23:35 UTC