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  2. RPG400-L
  3. December 2006

Re: Quick question on readability

It should be fairly easy for the optimizer to save cicles when you assign the same value to two variables, even if you don't write nested eval. I rather concentrate in writing something that I will understand when I see it after a long time. Same is valid for parentesis, I don't think redundant parentesis will cause more execution cycles, at the most it will add a few miliseconds to the compile. But, the extra parentesis can make the code more clear. 

AGlauser@xxxxxxxxxxxx wrote:


Adam Glauser wrote:

var1   = (eval var2 = value)
That little eval is rather important, and I'm in agreement as well that this is not something that should be used frequently. 

Roger Harman wrote on 13/12/2006 02:11:19 PM:


Or maybe not used at all.  The nested eval is not all intuitive.  I'll
take repetitive lines of code over that any day.


From the classic  "The Elements of Programming Style"..

  Write clearly - don't be too clever
I agree. The only reason I could see to use the nested structure is that it might save a few cycles. Sometimes that is the case with similar constructs in C. Of course, if you really need uber-efficiency that badly, C is probably a better bet anyway. 

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