Re: Integer patch for Lua 5.1 final

[Asko Kauppi <askok@...>]

In my experience, using fixed point arithmetic in anything that is  
intended to be general purpose (s.a. Lua core) is simply a Bad Idea.   
Where fixed point work, is coordinate systems etc. where you can make  
some assumptions about the values and operations performed on those  
numbers.

Just my 5 cents (there's no 2c in Finland ;)

-asko


Ben Sunshine-Hill kirjoitti 27.2.2006 kello 1.59:

> On 2/26/06, Adam D. Moss <adam@gimp.org> wrote:
> > Daniel Collins wrote:
> > > Also, does the integer patch give control (eg via a macro) of the  
> > > fixed
> > > point precision?
> >
> > The integer patch (assuming we're talking about the same thing)
> > isn't a fixed-point patch, I believe; instead it makes the VM
> > use integer maths for integer values where feasible, deferring
> > to floating point only when necessary (i.e. non-integer operands).
>
> I vaguely recall, though, someone on this list doing fixed point in
> Lua to make it work with BREW. It would be interesting to combine the
> two patches. You'd still only have one choice of fixed-point other
> than integer, but in my experience that's adequate for the majority of
> applications.
>
> Ben