Messages in this thread | | | Date | Mon, 19 Nov 2007 22:17:10 -0800 (PST) | Subject | Re: Is there any word about this bug in gcc ? | From | David Miller <> |
| |
From: WANG Cong <xiyou.wangcong@gmail.com> Date: Tue, 20 Nov 2007 13:39:05 +0800
> And you mean abs() is not in glibc, then where is it? Built in gcc? > And what's more, why not put it in glibc?
Because the compiler knows things about the inputs and can thus apply optimizations that a static implementation in glibc that has to handle all forms of inputs cannot. - 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/
| |