Messages in this thread | | | Date | Thu, 24 Apr 2003 20:27:56 +0200 | From | Willy Tarreau <> | Subject | Re: [PATCH] 2.4.21-rc1 pointless IDE noise reduction |
| |
Hi !
Well, although I usually don't like these endless coding-style threads, why don't you simply use this common form ? :
return !!(foo & MASK);
I found that the compilers like it much and easily emit conditionnal set instructions. Eg, on x86, this should be something like :
testl MASK, foo setnz retcode
Cheers, Willy
On Thu, Apr 24, 2003 at 01:15:39PM -0400, Timothy Miller wrote: > > > > > >I meant return ((foo & MASK) && 1); > > > >Try it, you'll like it! No shifts, no jumps. > > > > > > > > Looks sweet! If the compiler is smart, that is. I'll add that to my > repetoire. I'll have to see what the asm output looks like. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |