Re: EMACS_INT cleanup

[Stefan Monnier]

> Isn't the SPECPDL thing for building a backtrace strack?  The
> specbinding structure is 16 bytes, and I'm assuming that it's organised
> as a, er, stack.  So having this be more than 31 bits will require a
> recursion that goes deeper than the moon has atoms.  (Well, ok.  That's
> a slight exaggeration.  I admit it.)

Yes, but using ptrdiff_t will have the advantage that it's just right.
Using int requires a cast and an argument for why int is sufficiently
large in practice.  Casts are bad, and human-arguments are only OK when
we can't argue directly with the compiler.


        Stefan