From: Christian Couder <chriscool@tuxfamily.org>
Date: Thu, 19 Feb 2009 05:32:49 GMT
Subject: Re: [PATCH] rev-list: estimate number of bisection step left
Message-ID: <200902190632.50156.chriscool@tuxfamily.org>
In-Reply-To: <200902190616.18747.chriscool@tuxfamily.org>

Le jeudi 19 février 2009, Christian Couder a écrit :
>
> But on Linux, log2 and exp2 are defined in "math.h" and available with:
>
> _XOPEN_SOURCE >= 600 || _ISOC99_SOURCE; or cc -std=c99
>
> and we must link with -lm, but I don't know about the other platforms.
>
> So I don't know what to do about them. Please advise.

What I mean is that log2 is just something like:

int log2 = 0;

for (; n > 1; n >>= 1)
	log2++;

and exp2 is just "1 << n", so I wonder if it's really necessary to add a lot 
of stuff in the Makefile for these 2 really short functions.

Regards,
Christian.