Tx nicolas
I read
SmallFloat64: My instances represent 64-bit Floats whose exponent fits
in 8 bits as immediate objects. This representation is only available
on 64-bit systems, not 32-bit systems.
BoxedFloat64: My instances hold 64-bit Floats in heap objects. This is
the only representation on 32-bit systems. But on 64-bit systems
SmallFloat64 holds a subset of the full 64-bit double-precision range in
immediate objects.
I think that we can improve such comments but I do not have the knowledge.
So do I get that we will have instances of Float and BoxedFloat64?
Le 1/2/16 21:27, Nicolas Cellier a écrit :
SmallFloat is like SmallInteger: immediate value encoded in oop, and
it is only for 64 bits Spur VM.
Boxed is the classical VM Float, two 4-bytes word allocated per Float,
and is both for 32 bits VM and Float values not fitting in immediate
format (3 bits have been stolen from exponent...).
2016-02-01 20:49 GMT+01:00 stepharo <steph...@free.fr
<mailto:steph...@free.fr>>:
Hi
I'm updating Pharo by example and the relationship between Float
and its subclasses is unclear to me.
Do we only get instances of the subclasses now?
I got that Boxed is only for 64 bits.
But SmallFloat?
The class comment is not really self describing.
Stef
