Re: Deepcopy of complex structures.

What's wrong with Data::Dumper? Data::Dumper even has switches for the explicit reason of eval()ing and deep-copying.

The biggest flaw in your routine, as far as I can see, is that it doesn't handle circular references. It'll recurse to death upon

  my $aref = [];
  $aref->[0] = $aref;
  deepcopy($aref);
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Hope I've helped,
ihb

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Re: Re: Deepcopy of complex structures. by BrowserUk (Patriarch) on Jan 21, 2003 at 01:10 UTC
My main problem with Data::Dumper--beyond the fact that it regularly blows my swap space on relatively small data structures--is that whilst the stringification/ evaling process makes sense if you need to transmit the structure between system, or store it to disk, all I want is an in-memory copy. Preferably as fast as possible, given this is a recursive routine that may be called to process large volumes of structure. Examine what is said, not who speaks. The 7th Rule of perl club is -- pearl clubs are easily damaged. Use a diamond club instead.	[reply]

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Re: Re: Deepcopy of complex structures.
by BrowserUk (Patriarch) on Jan 21, 2003 at 01:10 UTC

My main problem with Data::Dumper--beyond the fact that it regularly blows my swap space on relatively small data structures--is that whilst the stringification/ evaling process makes sense if you need to transmit the structure between system, or store it to disk, all I want is an in-memory copy. Preferably as fast as possible, given this is a recursive routine that may be called to process large volumes of structure.

Examine what is said, not who speaks.

The 7th Rule of perl club is -- pearl clubs are easily damaged. Use a diamond club instead.

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