Re: Least significant bit?

["daniel sheltraw" <l5gibson@hotmail.com>]

Lionel

If the number you want to check is an integer you can simply use
the modulus operator % as follows

int x, y;

y = x%2

If y is 0 then it's even if 1 it's odd.

You could also left shift (<<)the value by sizeof(int)-1 and test to see if 
the result is zero or one.

Daniel

Daniel
>From: Lionel Pinkhard <lionelp@worldonline.co.za>
>Reply-To: gameprogrammer@gameprogrammer.com
>To: gameprogrammer@gameprogrammer.com
>Subject: Least significant bit?
>Date: Wed, 26 Jul 2000 11:18:11 +0000 (UTC)
>
>Hi,
>
>Can somebody tell me how to check the least significant bit (bit 0) of a 
>number?
>
>What I'm trying to do is only to check whether a given number is even or 
>odd, and (please do correct me if I calculated incorrectly) I think that 
>all even numbers have 0 as the least significant bit, and all odd numbers 
>have 1, am I correct? Also, is this
>  the best/fastest way to do this kind of calculation, or is there 
>something better?
>
>I've been thinking of doing this with some kind of AND/OR/XOR mask, but I 
>think that would get way too complex (after all, I'm only trying to read in 
>ONE BIT!)
>
>Kind regards,
>
>Lionel Pinkhard
>
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