Re: [linux-pm] [PATCH] ACPI: replace strlen("string") with sizeof("string")-1

[Pavel Vasilyev]

06.08.2012 18:36, Alan Stern ÐÐÑÐÑ:
> On Mon, 6 Aug 2012, Pavel Machek wrote:
>
> > On Thu 2012-07-26 21:39:38, Len Brown wrote:
> > > ...both give the number of chars in the string
> > > without the '\0', as strncmp() wants,
> > > but sizeof() is compile-time.
> >
> > What about introducing something like streq() to do this
> > automatically? This is ugly....
> >
> > #define streq(a, b) ... if (_buildin_constant(b)) ...
> >
> > ?
> >
> > > -	if (!strncmp(val, "enable", strlen("enable"))) {
> > > +	if (!strncmp(val, "enable", sizeof("enable") - 1)) {
>
> While you're at it, there's no point using strncmp when you know the
> length of one of the strings beforehand.  Just use memcmp, and don't
> subtract 1 from the sizeof value.

http://www.gossamer-threads.com/lists/engine?do=post_attachment;postatt_id=41157;list=linux

:)




--

                                                         Pavel.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/