Re^2: More efficient dereferencing of a subroutine return

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Re^3: More efficient dereferencing of a subroutine return by frozenwithjoy (Priest) on Feb 17, 2013 at 23:48 UTC
Can you show what exactly gives you that error? I get no errors/warnings with this: `#!/usr/bin/env perl use strict; use warnings; use feature 'say'; my @result = @{ subroutine() }; say "@result"; sub subroutine { my @array = (); return \@array; }` [download]	[reply] [d/l]
Re^4: More efficient dereferencing of a subroutine return by parv (Parson) on Feb 18, 2013 at 00:05 UTC
Did you, and the one before you, missed the part where I wrote about the case of undef being returned, as in ... `use strict; my @p = @{ list() }; sub list { return undef; }` [download] ...?	[reply] [d/l]
Re^5: More efficient dereferencing of a subroutine return by Anonymous Monk on Feb 18, 2013 at 00:24 UTC
That is what you said, but look at the OP's code, its always `return \@array` which can never be undef an empty array is better than undef	[reply] [d/l]
Re^6: More efficient dereferencing of a subroutine return by parv (Parson) on Feb 18, 2013 at 00:49 UTC
Re^7: More efficient dereferencing of a subroutine return by Anonymous Monk on Feb 18, 2013 at 01:03 UTC
Some notes below your chosen depth have not been shown here
Re^3: More efficient dereferencing of a subroutine return by tobyink (Canon) on Feb 18, 2013 at 07:48 UTC
In that case, `my @ARRAY = @{ subroutine() \|\| [] };` [download] `package Cow { use Moo; has name => (is => 'lazy', default => sub { 'Mooington' }) } say Cow->new->name`	[reply] [d/l]
Re^3: More efficient dereferencing of a subroutine return by Anonymous Monk on Feb 17, 2013 at 23:43 UTC
what? Can you demonstrate that?	[reply]