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Re^2: One piece of code, two mysteries!

by BrowserUk (Pope)
on Oct 05, 2012 at 07:43 UTC ( #997407=note: print w/ replies, xml ) Need Help??


in reply to Re: One piece of code, two mysteries!
in thread One piece of code, two mysteries! (UPDATED.)

Well spotted, you're not wrong.

That comes about because this is an as yet incomplete modification of an old subroutine with different goals. The bugs I encountered meant that I haven't gotten around to trying finishing the modifications.

But that has nothing to do with the error, as they are reproduced by this simplification:

#! perl -slw use strict; use threads; use threads::shared; sub test { my @results :shared; async { @results = 1 .. 10; }->join; print "@results"; return @results; } print test(); __END__ C:\test>junk50 1 2 3 4 5 6 7 8 9 10 Use of uninitialized value in print at C:\test\junk50.pl line 16. Use of uninitialized value in print at C:\test\junk50.pl line 16. Use of uninitialized value in print at C:\test\junk50.pl line 16. Use of uninitialized value in print at C:\test\junk50.pl line 16. Use of uninitialized value in print at C:\test\junk50.pl line 16. Use of uninitialized value in print at C:\test\junk50.pl line 16. Use of uninitialized value in print at C:\test\junk50.pl line 16. Use of uninitialized value in print at C:\test\junk50.pl line 16. Use of uninitialized value in print at C:\test\junk50.pl line 16. Use of uninitialized value in print at C:\test\junk50.pl line 16.

I didn't switch to this as my example because I could not reproduce the circumstances of the "modification of a readonly value" with this.


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