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From: b39y@vax5.cit.cornell.edu
Newsgroups: comp.databases
Subject: Clipper and bitwise operators
Message-ID: <1991Jun13.142852.5436@vax5.cit.cornell.edu>
Date: 13 Jun 91 18:28:52 GMT
Distribution: comp
Organization: CIT, Cornell University
Lines: 19

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.  That
is, I'd like to assign (at startup) values like SCHEDULE && ACCOUNT &&
BIOGRAPHICAL (where the constants have been #defined as 1, 2, and 4
respectively) to a numeric nAccess.  Then, when entering my account module, I'd
like to check like this:

	if nAccess .and. ACCOUNT
	   accounting code here
	else
	   ERROR:  You have insufficient priviledges for this operation
	endif

However, Clipper has no bitwise operators that I can find.  Am I missing them,
or do they truly not exist?  If they don't exist, has anyone got suggestions
for alternative implementations?  Thanks

Dave Rodger
Applications Programmer, Cornell University