Re: Pointer vs. BIF performance

Is the additional complexity really worth the billionth of seconds of
performance increase?

On Wed, Aug 12, 2009 at 2:59 PM, Barbara Morris <bmorris@xxxxxxxxxx> wrote:

bvining wrote:

... I would have used the
pointer approach (for what that's worth) with a slight change:

charPtr = %addr(SRCDATA);
for p = 0 to %len(%trimr(SRCDATA));
if char < x'40';
char = *blank;
endif;
charPtr += 1;
endfor;

Bruce, there's a slight risk of a pointer-offset error with that
approach. The final increment of the pointer positions it beyond the
end of the variable. If the SRCDATA variable happens to lie at the end
of a physical storage segment, you'd get MCH0601 on the last loop
iteration.

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