Re: Heap usage and variable argument C functions

[Rici Lake <lua@...>]

On 21-Dec-04, at 7:33 PM, Brett Bibby wrote:

> Yes, DX exhibits this problem, but Lua brings it out all on its own in
> certain situations!  I have confirmed many times that calling into Lua 
> and
> manipulating some Lua Numbers can cause the denormals and precision to
> change.  We have to wrap all calls into and out of Lua with _fpreset,
> _control87 to keep it working correctly in all situations.

Lua is not doing anything to trigger that behaviour, as far as I know.
I would think that it is your C compiler setting the CPU's behaviour
to C's standards. Since Lua does not actually care about denormalisation
and precision (if you don't care), you should probably look for a
compiler setting which turns that behaviour off. If you are lucky,
you will find one.