Re: using the interfaces in ctype.h

["Greg A. Woods; Planix, Inc." <woods%planix.ca@localhost>]

On 21-Apr-08, at 2:56 PM, Joerg Sonnenberger wrote:

> On Mon, Apr 21, 2008 at 02:43:20PM -0400, Greg A. Woods; Planix,  
> Inc. wrote:
> > On 21-Apr-08, at 1:57 PM, Joerg Sonnenberger wrote:
> >
> > > On Mon, Apr 21, 2008 at 01:52:41PM -0400, Greg A. Woods; Planix,  
> > > Inc.
> > > wrote:
> > > > Actually, no, it doesn't, at least on NetBSD.   Try it!  :-)
> > >
> > > Sure. See attached code.
> >
> > You must have some different release of NetBSD than any I have.  I  
> > get "0
> > 0" from your program on stock 4.0, a netbsd-4 branch ("4.0_STABLE")  
> > system,
> > and of course on 1.6.2 too.  Same on Mac OS X 10.5.2 as well.
>
> Grmbl. So I picked one of the few locales that were added after NetBSD
> 4. Other sample.

Yes, I know what you were getting at, but the question really is what  
do you make of the result of this change to your example?  I.e. adding  
the cast in the call as was suggested in the first place?  Besides,  
what does it really matter?  The result of islower(EOF) is undefined  
anyway!

#include <ctype.h>
#include <locale.h>
#include <stdio.h>

int
main(void)
{
        setlocale(LC_ALL, "en_US.ISO8859-1");

        printf("%d %d\n", islower(-1), islower(255));
	printf("%d %d\n", islower((unsigned char)-1), islower((unsigned  
char)255));
        return 0;
}

--
                                        Greg A. Woods; Planix, Inc.
                                        <woods%planix.ca@localhost>