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Re: [CPROG] bitskifte ?



On Mon, 6 Sep 1999, Martin E. Nielsen wrote:

> > #define OPEN (1 << 0)
> > #define LOCKED (1 << 1)
> > #define TRAPPED (1 << 2)

> Hvad betyder de første tre definitioner (?): at du sætter bit 0,1 og 2 hhv.
> til 1 eller hvad? Jeg har ikke stiftet bekendskab med "<<" operatoren før.

1, 2, 4. Det er 1 shiftet 0, 1 og 2 bits til venstre, altså 1 << x giver
bit nummer x sat.


-- 
==============================================================================
Erwin Andreasen   Herlev, Denmark <sslug@sslug>          UNIX System Programmer
<URL:http://www.andreasen.org>              <*>              Goodbye, Richard!
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