[docs] [issue9498] stdtypes.rst should refer to sys.float_info

Mark Dickinson report at bugs.python.org
Tue Aug 3 23:06:33 CEST 2010

Mark Dickinson <dickinsm at gmail.com> added the comment:

> it could theoretically not be true someday on some weird platform even for CPython.

Granted.  Though it would be quite a major change: the 'double' part is heavily hard-coded throughout.

> How about just adding this: "Floating point numbers are usually
> implemented using double in C." Then at least we're not committing 
> ourselves to anything.

That sounds fine to me.


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