-w -c doesn't catch it? Yes it does: 

$ perl -w -c -e 'if($status = 0) { $status = 1 }'
Found = in conditional, should be == at -e line 1.
-e syntax OK

[download]

That's using 5.8.8, BTW.

In reply to Re^3: What habits do you have to avoid introducing bugs? by DrHyde
in thread What habits do you have to avoid introducing bugs? by superfrink

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