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Re: [RFA] Emit a warning for ineffective set VAR = EXP command
On Wed, 9 May 2012, Paul_Koning@Dell.com wrote:
> > What do you mean by "work" here? I think a warning for "i++ * 2" is
> > expected as that's questionable use -- the result of the multiplication is
> > discarded. Did you mean anything else?
>
> You're right, but it does perform an assignment (to "i") so a message
> saying that the statement has no effect is not accurate. Then again,
> given that the statement doesn't make much sense, the fact that the
> message is not completely accurate isn't all that interesting -- unlike
> the simple "i++" it isn't a likely case in reality.
I think it's all right -- "might have no effect" is weaker than "has no
effect" and will draw one's attention in the case of a typo or suchlike.
Maciej