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Mail Archives: djgpp/2000/05/01/19:30:06

From: Damian Yerrick <Bullcr_pd_yerrick AT hotmail DOT comRemoveBullcr_p>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Binary Numbers
Organization: Pin Eight Software http://pineight.8m.com/
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References: <390C9311 DOT E12D0FB3 AT pop DOT gis DOT net>
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Date: Mon, 01 May 2000 22:58:11 GMT
To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

On Sun, 30 Apr 2000 16:09:53 -0400, Joseph Rose <jorose AT pop DOT gis DOT net>
wrote:

>Binary Numbers
>How do I represent them in C++?

On most platforms (including DJGPP):

  int x;

You can retrieve bit n of integer x by doing this:

  foo = (x >> n) & 1;

If you want to print the binary number, you can loop from n = 31 to 0
to display the number in base 2, or you can use good old itoa().

By "most platforms" I mean the ones that use binary arithmetic for
objects of type `int'.  I challenge comp.os.msdos.djgpp to find an
important computer platform that does not.

-- 
Damian Yerrick
"I refuse to listen to those who refuse to listen to reason."
See the whole sig: http://www.rose-hulman.edu/~yerricde/sig.html

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