Re: VRAAGJE C/C++

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#5194

From: kansloos
Date: Sun, 18 May 2003 13:30

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In nl.comp.programmeren Ivan Van den Bossche <ivan.van.den.bossche@pandora.be> schreef,
> Hi,
> 
> Zou er iemand mij kunnen uitleggen wat de volgende functie doet?
> 
> int TestBit(BYTE val, int intIndex)
> {
>    return ((val & (1 << intIndex)) > index) ? 1 : 0;
> }
> 

Hij kijkt of bit 'intIndex' in 'val' aan staat.

Dus val = 000100 (als bits) en intIndex = 2(10-based) dan return true;
En val = 110111 en intIndex = 3 dan return false;

Dit alles onder de voorwaarde dat index >= 1.

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Message-ID: <3ec78b12$0$49099$e4fe514c@news.xs4all.nl>
From: kansloos@xs4all.nl
Subject: Re: VRAAGJE C/C++
Newsgroups: be.comp.programming,nl.comp.programmeren
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