Date: Mon, 10 Jan 2005 13:13:16 +0000 From: Brian Somers <brian@FreeBSD.org> To: Giorgos Keramidas <keramida@FreeBSD.org> Cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/usr.sbin/ppp route.c Message-ID: <20050110131316.2d8d099f@dev.lan.Awfulhak.org> In-Reply-To: <20050110122225.GB2693@orion.daedalusnetworks.priv> References: <200501101112.j0ABCaEQ062701@repoman.freebsd.org> <20050110122225.GB2693@orion.daedalusnetworks.priv>
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On Mon, 10 Jan 2005 14:22:25 +0200, Giorgos Keramidas <keramida@freebsd.org> wrote:
> On 2005-01-10 11:12, Brian Somers <brian@freebsd.org> wrote:
> >
> > Cast unsigned variables to int
> >
> > Revision Changes Path
> > 1.94 +1 -1 src/usr.sbin/ppp/route.c
>
> % static void
> % p_flags(struct prompt *prompt, u_int32_t f, unsigned max)
> % {
> % char name[33], *flags;
> % register struct bits *p = bits;
> %
> % if (max > sizeof name - 1)
> % max = sizeof name - 1;
> %
> % for (flags = name; p->b_mask && flags - name < (int)max; p++)
> % if (p->b_mask & f)
> % *flags++ = p->b_val;
> % *flags = '\0';
> % - prompt_Printf(prompt, "%-*.*s", max, max, name);
> % + prompt_Printf(prompt, "%-*.*s", (int)max, (int)max, name);
> % }
>
> Hi Brian,
>
> Since p_flags is used only once in route.c can't we just fix the type
> of `max' in the argument list of p_flags() to avoid the need for casts
> altogether?
Well, the problem then becomes (with high WARNS values) a warning that
max is compared with an unsigned type. I chose to make the prototype
unsigned as it seemed to make more sense to restrict the argument to
what we expect...
--
Brian Somers <brian@Awfulhak.org>
Don't _EVER_ lose your sense of humour ! <brian@FreeBSD.org>
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