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>Date: Tue, 09 Jan 2001 13:21:37 -0800 >From: Jim Langston <jimlangston@conexfreight.com> >Subject: Re: MIDRANGE-L Digest V4 #29 > >You need to look for unique data contained in one of the record formats >that isn't contained in the other. In my particular case, I know that >a certain field in one of my formats, the header, will contain a *Zero >otherwise it will not be a *Zero. Jim, this might be working for you, but it seems dangerous. And it only allows two formats. I think this method would work better if there was a record-type field at the beginning of every format. And Dan is right that it would be better to copy the records rather than use pointers. Or maybe even better, copy the header record because you might need to see the header fields while dealing with a detail record, but when using the header record, set the basing pointer of the detail record to *NULL so you can't accidentally access its fields. In the general case, set all pointers to null except the one for the record you're working with. Barbara Morris +--- | This is the Midrange System Mailing List! | To submit a new message, send your mail to MIDRANGE-L@midrange.com. | To subscribe to this list send email to MIDRANGE-L-SUB@midrange.com. | To unsubscribe from this list send email to MIDRANGE-L-UNSUB@midrange.com. | Questions should be directed to the list owner/operator: david@midrange.com +---
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