Just make sure you don't 
return $result or $default

[download]

Fortunately, more recent perls would warn you: 

Possible precedence issue with control flow operator at ...

[download]

($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,

[download]

In reply to Re: Thoughts on using and, or, and not over && || !? by choroba
in thread Thoughts on using and, or, and not over && || !? by Argel

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