Re: why doesn't "my ($a,$b)" return a list?

Prototype "$" imposes a scalar context on the corresponding expression in the parameter list. That means that my cannot possibly return a list. Without trying, I'd guess it returns the last of the values it would normally return. To avoid this problem, remove the prototype or use

tst(my $x, my $y);
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(Spotty internet delayed my posting. Sorry for repeating what moritz covered.)

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Re^2: why doesn't "my ($a,$b)" return a list? by LanX (Saint) on Aug 19, 2010 at 14:53 UTC
> Without trying, I'd guess it returns the last of the values it would normally return. nope my returns the number of declared variables, see the update in the OP. > To avoid this problem, remove the prototype prototype is not the problem. > or use use > `tst(my $x, my $y);` which unfortunately results in `tst(state $x, state $y);` in my case! Cheers Rolf	[reply] [d/l] [select]
Re^3: why doesn't "my ($a,$b)" return a list? by ikegami (Patriarch) on Aug 19, 2010 at 15:19 UTC
nope my returns the number of declared variables, see the update in the OP. Sorry, but you are mistaken. `$ perl -wE'say(scalar(my ($x, $y)))' Use of uninitialized value $y in say at -e line 1.` [download] It doesn't return the count. Like the error message shows, it returns the last element it would have returned (as I had guessed). which unfortunately results in tst(state $x, state $y); in my case! Or `&tst(state ($x, $y));` [download] But I prefer what you had over using "&".	[reply] [d/l] [select]
Re^4: why doesn't "my ($a,$b)" return a list? by LanX (Saint) on Aug 19, 2010 at 15:24 UTC
> Sorry, but you are mistaken. could be, I totally misread my tests! changing the prototype to `(\@@)` helped. Thanks! :) Cheers Rolf	[reply] [d/l]