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 <stepharo@free.fr <mailto:stepharo@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