Re: UNSIGNED_ITYPE_MAX signed?

[Marius Vollmer]

Dirk Herrmann <address@hidden> writes:

> On 29 Nov 2001, Marius Vollmer wrote:
> 
> > Dirk Herrmann <address@hidden> writes:
> > 
> > > is it a bug or a feature that UNSIGNED_ITYPE_MAX is a signed value?
> > 
> > Is it?
> > 
> > > I would expect it to be an unsigned value.  However, I have applied the
> > > patch below to num2integral.i.c, and it just does not work (giving errors
> > > in srfi-4) or gives 'comparing signed and unsigned' warnings if I leave
> > > out the cast operations in the line after the FIXME comment.
> > 
> > I don't get any errors or warnings with your patch.  Maybe it's the
> > version of GCC that you are using.  I have
> > 
> >     gcc version 2.95.4 20011006 (Debian prerelease)
> > 
> > What are you trying to do?
> 
> Well, my patch as it is does not lead to warning messages.  Only if you
> omit the cast operations in the line after the FIXME comment you would get
> warnings when compiling with -Wall -W.

Yes, I'm not getting warnings either way.

> Without my patch, I still was getting warning messages when compiling with
> -Wall and -W, although I don't remember what kind of warning it was.  My
> version of gcc is "2.95.3".

Sounds plausible, from looking at the code.  Are you still having
problems with this?