There was a ScaledDecimal class in Squeak before the licence change, afaik. Karl
On Thu, Jun 30, 2011 at 8:34 PM, nicolas cellier < nicolas.cellier.aka.nice@gmail.com> wrote:
Ralph Johnson <johnson <at> cs.uiuc.edu> writes:
On Wed, Jun 29, 2011 at 8:34 AM, bb <bblochl <at> arcor.de> wrote:
I found that there are some Float-Subclasses: FloatD FloatE FloatQ How can I use them and what are they good for? I do not understand the use of LargeZeroInteger as well.
Squeak does not have these classes. In fact, most Smalltalks do not, even though it is part of the ANSI standard. The only numeric classes that are part of the regular image are Float, Fraction and Integer, with its subclasses LargePositiveInteger, LargeNegativeInteger, and SmallInteger. There are other numeric classes out there, such as Complex, but these are the ones that get used by everybody.
It has been a while since I have used VisualWorks. It has a fixed decimal number, in addition to the ones I just mentioned. But I don't think it has the subclasses of Float, either.
-Ralph Johnson
VW has Float = FloatE and Double = FloatD, but no FloatQ. Beside, it has SmallDouble = optimized FloatD in case of limitefd exponent.
Smalltalk-X has the three classes.
Dolphin only has Float = FloatD if I remember well.
VA ?
I also checked about asInteger, VW does the same as Squeak, truncate, and I think it is inherited directly from st-80. Being both Smalltalk-80 and ANSI is somehow a bit uncompatible, though I'm not sure Smalltalk-80 is normative...
Nicolas
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