Re: Modify a hash via its reference

Agree with the above, but as a sidebar a couple of notes on coding style that might help readability (none critical, just some things I've picked up bashing around the Monastery):

No need for the "&" in front of your subroutine calls, or the space just preceding the opening parens. Include the empty set of parens if not passing a value.
No need for the "#" on the blank lines (visual noise)
No need for the "()" around a single my variable declaration</code>
Might want to consider an alternative to spelling out your hash values with the 'corresponds to' arrow =>
And personally, I like my variable and subroutine names in all lowercase (I save the title case for my module names.

So,

my %fruits  = ( "Apples"  => 3, 
                "Oranges" => 6 );
print_hash(();
[download]

A great book: Perl: Best Practices.

Good luck!

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

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Re^2: Modify a hash via its reference by Errto (Vicar) on Jan 23, 2008 at 22:51 UTC
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 ) = @_;` [download] 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.	[reply] [d/l]
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. —Brad "The important work of moving the world forward does not wait to be done by perfect men." George Eliot	[reply]