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> I'd overload = to automatically clone the object on assignment.

Sorry, that's too easy to misunderstand.

Let me be more precise:

$b = $a with = overloaded to ->clone will not do an immediate $b =  $a->clone °

It's rather a kind of copy-on-write.

After the assignment the refs will still be identical : $b == $a

The ->clone ("copy" in COW) will only happen delayed just prior to changing $b or $a ("write" in COW)

But the wording is fuzzy and needs to be tested.

Anyway this could indeed fix the problem of the OP in an efficient way.

Cheers Rolf
(addicted to the 𐍀𐌴𐍂𐌻 Programming Language :)
Wikisyntax for the Monastery

°) In Math::BigInt the cloning is done with the method ->copy


In reply to Re^3: Action at a distance by LanX
in thread Action at a distance by syphilis

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