2/3 of these are syntax errors.

None of them have error checks.

Those issues are more important than the miniscule speed differences...

UPDATE
(Response to Adam.)
I find that what people do in pseudo-code, they do in real code as well. Error checks should be a reflex.

In reply to Re (tilly) 1: cat vs. file handle speed? by tilly
in thread cat vs. file handle speed? by dorpus

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