Re: Why RNF5410 for undefined variable in prototype call?

[Barbara Morris <bmorris@xxxxxxxxxx>]

Rory Hewitt wrote:
> BTW, you don't need to use %trim for the second parameter to QCMDEXC - you
> can simply pass this:
>
> execcmd(command:%len(command));
>
> It doesn't make much difference, but it probably saves a CPU cycle or two,
> and those unnecessary %trims add up over time. Plus, it makes your code
> slightly simpler to read...

I agree about simpler to read.

But I wonder about saving CPU cycles and unnecessary %trims.  If you 
don't use %trim to get the length, then you just move the processing of 
the trailing blanks to the CL command processor.  Probably makes no 
difference, although it somehow feels like it's more complex for the 
command processor to handle trailing blanks.  I have no idea how the 
command parsing works, maybe it even trims before it starts.  But if it 
just chugs through the entire input string, it might do a bit more work 
for each character than %trim does.  For instance, when it finds a 
blank, it may have to also check whether it's processing a literal 
before it decides whether to ignore the blank or not.