Re: Floating-point constant folding in Emacs byte compiler

[Paul Eggert]

On 03/30/2018 09:26 AM, Pip Cet wrote:
> with optimization,
> (lambda () (eq 1024.0 1024.0)) will still be false, but without
> optimization, it will turn into bytecode that always returns true

This problem is endemic to Lisp implementations and I wouldn't worry 
about it too much. In Scheme, for example, it is unspecifed whether (eq? 
2.0 2.0) returns true or false, and Emacs Lisp could do the same. We'll 
have similar problems with bignums if we ever get around to implementing 
them.