Re^2: Can someone clarify what's happening here

use strict causes it to whinge that i'm not using my to declare @perls, but if that's fixed, the code still exhibits the same behavior (@{shift()} works, @{shift} does not)

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Re^3: Can someone clarify what's happening here by ikegami (Patriarch) on Aug 11, 2010 at 02:20 UTC
Did you forgot to remove the parens? You should have gotten a warning and a strict error, but of which explain the issue. `use strict; use warnings; my @perls = (1, 2, 3, 4); sub foo { my @foo = @{shift}; return join $/, @foo } print foo(\@perls)` [download] `Ambiguous use of @{shift} resolved to @shift at a.pl line 7. Global symbol "@shift" requires explicit package name at a.pl line 7. Execution of a.pl aborted due to compilation errors.` [download]	[reply] [d/l] [select]

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Re^3: Can someone clarify what's happening here
by ikegami (Patriarch) on Aug 11, 2010 at 02:20 UTC

use strict;
use warnings;

my @perls = (1, 2, 3, 4);
sub foo
{
  my @foo = @{shift};
  return join $/, @foo
}
print foo(\@perls)
[download]

Ambiguous use of @{shift} resolved to @shift at a.pl line 7.
Global symbol "@shift" requires explicit package name at a.pl line 7.
Execution of a.pl aborted due to compilation errors.
[download]

[reply]
[d/l]
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