Re: [ANN] Lua 5.3.0 (work1) now available

[Lorenzo Donati <lorenzodonatibz@...>]

On 06/07/2013 21.36, Roberto Ierusalimschy wrote:
> > So, for best efficiency, I guess programmers will have to be careful
> > to avoid unnecessary int -> fp conversions
>
> Sure.

Does this mean that if we don't pay attention to this new behaviour we 
could get worse performance than Lua 5.2/5.1 or the only drawback is 
simply that we wouldn't gain any performance boost from the new int 
arithmetic? May existing scripts exhibit worse performance in 5.3?

In other words, I'm worried that people who don't need this "automatic 
int management" could possibly suffer from a performance hit, _forcing_ 
them to be more careful when writing code.

[snip]

> -- Roberto

BTW, besides the new operator/functions/features, could old scripts also 
experience a change of semantics? And to which extent?

Thanks!

-- Lorenzo


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