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Re: while going through perldsc tutorial...

by philcrow (Priest)
on Oct 16, 2007 at 19:41 UTC ( #645264=note: print w/replies, xml ) Need Help??


in reply to while going through perldsc tutorial...

In the line marked #WRONG, the reference is always taken to @array which is only allocated once in the program (probably implicitly). Therefore, on each iteration, @array gets new values, and its location gets stored and all those references refer to the last set of values. To fix it, declare @array on each iteration:
my @array = somefunc($i);
Then, new memory is allocated each time and the references are to those different memory areas.

Phil

The Gantry Web Framework Book is now available.

Replies are listed 'Best First'.
Re^2: while going through perldsc tutorial...
by convenientstore (Pilgrim) on Oct 16, 2007 at 21:27 UTC
    i understand now.. thank you

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[Lady_Aleena]: james28909, what neat trick?
[james28909]: now if i have packed a script into a PDK exe, and misplaced the source, i can print it.
[james28909]: but you have to prepare for it first by adding this to the source
[james28909]: seek DATA, 0, 0; while (<DATA>) { print; }
[Lady_Aleena]: Sounds interesting. Have you written a meditation or cool use for it?
[Lady_Aleena]: It might be something PerlMonks at large would be interested in.

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