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At 14:24 11/18/1998 , Rob Berendt
>> I strongly agree with Hans.  We did specific performance testing on this
>> function in RPG III, and found it to be 48 times more expensive from a CPU
>> perspective.
>>
>> Al
>
>Does this mean that 400 has some extremely weak mathematical processing, or 
>is it just the compiler that is badly written?

Neither imho. The overhead is caused by exception processing due to numeric 
overflow conditions. RPG can cause them to be ignored, but the low level code 
still must (and should) signal them. Intentionally causing numeric overflow to 
occur is not a good idea in any language. The date conversion multiplier trick 
takes advantage of a peculiar RPG behavior that is not consistent with "good 
programming practice".

Pete Hall
peteh@inwave.com 
http://www.inwave.com/~peteh/

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