Re: Updating a hash using a refernece?

[Dave Storrs]

On Tue, 13 Nov 2001, AMORE,JUAN (HP-Roseville,ex1) wrote:

 How do I update the value pointed to by key PAGER from more to pg.
 when using a reference only to the hash element for key PAGER.


 %Unix= (SHELL = /bin/csh,
PAGER = more,
DB = mysql);

  print Value: , $unix{PAGER};




Are you saying that you have a reference to the hash itself, or a
reference to the scalar element stored in the hash?  See below:

my %hash = ( SHELL = '/bin/csh' );
my $rh_hash = \%hash;
my $rs_element = \($hash{SHELL});

print $hash{SHELL}, \n;

$rh_hash-{SHELL} = 'blog';
print $hash{SHELL}, \n;

$$rs_element = 'wurzle';
print $hash{SHELL}, \n;


Outputs:

/bin/csh
blog
wurzle




Dave



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Updating a hash using a refernece?

[AMORE,JUAN (HP-Roseville,ex1)]

How do I update the value pointed to by key PAGER from more to pg. 
when using a reference only to the hash element for key PAGER.


%Unix= (SHELL = /bin/csh, 
   PAGER = more, 
   DB = mysql);

 print Value: , $unix{PAGER}; 


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Re: Updating a hash using a refernece?

[Christopher Solomon]

On Tue, 13 Nov 2001, AMORE,JUAN (HP-Roseville,ex1) wrote:

 How do I update the value pointed to by key PAGER from more to pg. 
 when using a reference only to the hash element for key PAGER.
 
 
 %Unix= (SHELL = /bin/csh, 
PAGER = more, 
DB = mysql);
 
  print Value: , $unix{PAGER}; 

$unix{PAGER} = 'foo';



see perldoc perldata for more info...


Chris


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