Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!asuvax!ncar!gatech!prism!jgb
From: jgb@prism.gatech.EDU (James G. Baker)
Newsgroups: comp.databases
Subject: Re: Clipper and bitwise operators
Message-ID: <31346@hydra.gatech.EDU>
Date: 14 Jun 91 02:28:37 GMT
References: <1991Jun13.142852.5436@vax5.cit.cornell.edu>
Distribution: comp
Organization: Georgia Institute of Technology
Lines: 21

In article <1991Jun13.142852.5436@vax5.cit.cornell.edu> b39y@vax5.cit.cornell.edu writes:
>I've got a question for Clipper users.  I'm running in Clipper 5.01, and want
>to use a bitmask-style integer for checking access to parts of my code.  

I assume they did not want bit-wise operators since having a binary byte 
(usually less than 32) in a .DBF can mess things up (like a stray EOF, etc).

You could interface some C functions to do it, but (if it were me) I would
just use a character mask instead of a bit-mask.  It might take eight
bytes instead of 1, but it sure makes debugging easier and memory is 
cheap.

Good luck.


-J Baker
-- 
BAKER,JAMES G - Undergraduate Lab Instructor, School of Electrical Engineering
____  _    _    Georgia Institute of Technology, Atlanta Georgia, 30332
  |  | _  |_)   uucp: ...!{decvax,hplabs,ncar,purdue,rutgers}!gatech!prism!jgb 
(_|. |_). |_).  Internet: jgb@prism.gatech.edu, jgb@ee, jgb@eecom, jgb@cc