Hi Ken, On Thu, Aug 1, 2013 at 11:55 PM, Ken Steele <k...@tilera.com> wrote: > + /* Read the first word, but force bytes before the string to be > nonzero. > + * This expression works because we know shift counts are taken mod > 32. > + */ > + v = *p | ((1 << (s_int << 3)) - 1);
This expression potentially has undefined behaviour according to C99, 6.5.7:3. IOW it may work, but it doesn't always have to. -- Thanks. -- Max -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
