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# 1  
Old 03-06-2012
Perl hash help

Hi ,

i have the below code its working fine when i execute in unix , but its not working in windows could you pls explain me where i am going wrong.

This is the program
Code:
 $data = { '1' => 'one' ,
           '2' => 'two' ,
           3 => 'three'
         };

 print "hello : $data->{'1'} ";


 print "hi : ${%$data}{'2'} \n";


when i execute it in unix

output
-------------------------
Code:
 jena lab $ perl test.pl
hello : one hi : two


in windows
output:
-------------------------------
Code:
hello : one hi :  
Use of uninitialized value in concatenation (.) or string at D:/Docket-Workspace/Test/test1/sample1.pl line 9.

Can anyone help ?

Last edited by pludi; 03-06-2012 at 09:52 AM..
# 2  
Old 03-06-2012
Which release of Perl are you using in Windows? ( I see the same thing when warnings are enabled in Strawberry)

Dreferencing without an explicit conversion to a hash resolves this, ( and works with Perl in Unix) ie:
Code:
print "hi : ${$data}{'2'} \n";

# 3  
Old 03-07-2012
Hi Skrynesaver,

but without dereferncing the hash how this will work ${$data}{'2'} , So what i need to do in window to make this
print "hi : ${%$data}{'2'} \n"; statement work......

this is the perl version in my windows
Code:
print "hi : ${%$data}{'2'} \n";

Thanks
Sridhar

Last edited by Franklin52; 03-07-2012 at 05:13 AM.. Reason: Please use code tags for code and data samples, thank you

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