To me your test shows that you CAN'T reach lower than the start of the array by using an index lower than -@array. A return value of undef is the only way that perl has to tell you that you're doing something bad. OK, not the only way, but dieing/croaking seems too strong for an out-of-range array index.

It occurred since my previous note that I shouldn't emulate this behavior in the direct-call routines that underlie my tied arrays, because then a user of a tied array would be faced with two layers of "wrapping around".

Unless I can figure out how to differentiate a tied call from a direct one. Since tied calls come through a little "dereference wrapper" from my AUTOLOAD routine (its PM thread ended yesterday), this should be possible, but I'm not sure it's worth the overhead.

cmac
www.animalhead.com

In reply to Re^3: index wrapping in tied FETCH and EXISTS by cmac
in thread index wrapping in tied FETCH and EXISTS by cmac

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