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Re^2: Modify a hash via its reference

by Errto (Vicar)
on Jan 23, 2008 at 22:51 UTC ( #663905=note: print w/replies, xml ) Need Help??

in reply to Re: Modify a hash via its reference
in thread Modify a hash via its reference

No need for the "()" around a single my variable declaration
This is true in most situations but not all. From the OP's code:
my ( $Ref_to_Hash ) = @_;
In this style of parameter initialization, the parentheses are in fact required. Otherwise $Ref_to_Hash will be assigned the number of arguments, not the value of the first one.

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Re^3: Modify a hash via its reference
by bradcathey (Prior) on Jan 24, 2008 at 03:26 UTC

    I stand corrected (which is why I love this place). Thanks, I learned something.

    "The important work of moving the world forward does not wait to be done by perfect men." George Eliot

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[LanX]: well you can warn about missing features...
[LanX]: ... i.e. avoid headaches about bug reports...
[Corion]: Yeah, I've updated the documentation to mention just that :)

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