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This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. -- [ Picked text/plain from multipart/alternative ] >And if we provided an option to mask the overflow exception, how >many people would just blindly code the option without fully >analyzing the real problem? And, other than lines of code, the monitor group differs from the opcode extension how? It can be misused as well. As we say about our users "you can't make a system foolproof because fools are too ingenious" you can also say about your users. Eval(e) is an ease of use thing on r510, it's a necessity on r450 and below. Somehow the program needs to handle the 9,999,999 good transactions without needing to check for the one bad one. -----Original Message----- From: boldt@ca.ibm.com [mailto:boldt@ca.ibm.com] Sent: Thursday, December 06, 2001 11:55 AM To: rpg400-l@midrange.com Subject: Re: Target for numeric operation too small...hello, Toronto? Tom wrote: >Well: > >D PBcontrol E DS ExtName(PBSCONTROL) Prefix(da_) >D DtaAra(PBACONTROL) >... >In *Lock PBcontrol; >da_Sequence = da_Sequence + 1; >Out PBcontrol; >pa_Sequence = da_Sequence; >... > >Where Sequence is a 7 digit number that used to, and still should, just roll >over at hival. (This is just one example of many sequence numbers) Oh I fully realize there may be one or two reasonable applications for numeric truncation. And this may well be one of them. But is it worth all the bugs that may be masked? As others have pointed out, do you really want to risk seeing $2.34 on your paycheque when it should be $1002.34? Or leave out high-order digits on customer bills? (Hmmm...) In this case, coding a MONITOR group around the EVAL is a small price to pay, and doesn't even cost anything in terms of run-time performance. And if we provided an option to mask the overflow exception, how many people would just blindly code the option without fully analyzing the real problem? (I was going to suggest using a SEQUENCE in SQL for this kind of functionality, but I'm not sure SQL on OS/400 has that particular extension.) Hans Boldt, ILE RPG Development, IBM Toronto Lab, boldt@ca.ibm.com _______________________________________________ This is the RPG programming on the AS400 / iSeries (RPG400-L) mailing list To post a message email: RPG400-L@midrange.com To subscribe, unsubscribe, or change list options, visit: http://lists.midrange.com/cgi-bin/listinfo/rpg400-l or email: RPG400-L-request@midrange.com Before posting, please take a moment to review the archives at http://archive.midrange.com/rpg400-l.
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