The question is: Why doesn't perl require explicit package names for $a and $b?

Change $a and $b to $x and $y, and you'll get the error. This is probably an artifact of the semi-special nature $a and $b in sort blocks.

In reply to Re: use strict won't require explicit name for all variables? by dws
in thread use strict won't require explicit name for all variables? by Biker

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