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On 2017-06-10 11:38 AM, Mark S Waterbury wrote:
...
The key phrase here, (and so, my "quote of the day") is, "Premature
optimization is the root of all evil." Hard-coding such symbolic values
in programs is just another form of "premature optimization." (It's a
"Pay now, or pay later" kind of thing...)
That "premature optimization" quote is one of my faves! It's one of the
quotes listed on my work home-page.
But I don't agree that hard-coding symbolic values counts as premature
optimization. I don't actually even understand the statement enough to
argue against it. Using named constants just seems like obvious goodness
to me.
Ohhhh, following the policy of "think before clicking send" ... Are you
saying that it would be better to use a database to store all the values
that we currently use named constants for?
I guess that could make sense for some "constants", but it could lead to
serious hoop-jumping in some cases, such as using constants for
definitions. And if overused, it could lead to one of the 3% of
performance issues that do need to be dealt with.
And I think it would only count as premature optimization if there was
already a system or policy in place to get "constants" from a central
place like a database or srvpgm, and a programmer decided to just go
with a named constant.
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