Jerry wrote": similarly if "or" is used instead of "and", > if the first part evaluates to "true", the second is NOT called.
"or" is a simpler case, as there is never a need to evaluate after a first round "true". Again, at least externally. I changed the "and" to "or" in Jerry's example, and if the left side yields "false" the right side is then evaluated. The language does seem to process booleans from left to right. All this makes sense externally. I don't know why I thought it was somehow preocessed internally, with a boolean decision made at a lower level after parsing the line as a whole, between two already evaluated terms. LC just linearly goes along, merrily, almost, doing its thing step by step. Craig Newman -----Original Message----- From: Dr. Hawkins <doch...@gmail.com> To: How to use LiveCode <use-livecode@lists.runrev.com> Sent: Mon, Jun 25, 2012 11:57 pm Subject: Re: is evaluation order defined, and evaluation of conditionals On Monday, June 25, 2012, Jerry Jensen wrote: > > This behavior is guaranteed in the C language, but I don't know about > guarantees in LiveCode. In C, similarly if "or" is used instead of "and", > if the first part evaluates to "true", the second is NOT called. Again, I > dunno about LiveCode. Exercise left to the reader (or somebody who knows!) wow. It's guaranteed to not be called? OK, I retract my guess. Then again, I guess that comes to the different purposes of C and modern Fortran (I'm not sure what I said applies to F90; maybe F95 & later). Modern Fortan is designed for massive parallelism for math; offering to do things in order would be counterproductive). -- The Hawkins Law Firm Richard E. Hawkins, Esq. (702) 508-8462 hawkinslawf...@gmail.com 3025 S. Maryland Parkway Suite A Las Vegas, NV 89109 _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
