Re: [Texmacs-dev] [RFC] no character in font information

[Igor V. Kovalenko]

Joris van der Hoeven wrote:
> > Inspired by valgrind debugging I added a simple check to
> > tex_font_metric_rep::tag function:
> >
> > int tex_font_metric_rep::tag (QN c)
> > {
> >     ...
> >     if (c < bc) {
> >     ...
> >     if (c > ec) {
> >     ...
> >     return (char_info [c-bc]>>8)&3;
> > }
> >
> > A test run give lines in output:
> >
> > tex_font_metric_rep::tag  c=254 > ec=127 (res_name=cmr8)
> > tex_font_metric_rep::tag  c=254 > ec=127 (res_name=cmr12)
>
>
> Yes, this is indeed a subtle bug.
> I corrected it for the next version.
>
> While relooking at the code, I also noticed something else:
> the tfm files are read in 32 bit blocks using the "int" type.
> I am not sure that this is correct on 64 bits architectures.
> Are there 64 bits architectures where the "int" type is 64 bits?
> In that case, maybe someone is willing to patch this.

Well, compiler's representation for int type is to be choosen
as to match machine word size. So on 64-bit arch size of int is 64 bit,
if compiler is really a 64-bit one.

--
Regards,
Igor V. Kovalenko    mailto: iko at crec dot mipt dot ru