Hi
I am trying to assign single key-value pairs to a hash and something is going very wrong...I get the error messages Useless use of hash element in void context and Useless use of a variable in void context. 
    open(INFILE,$infile) or die "Can't open $infile\n";
    print "opened $infile\n";<STDIN>;
    while(<INFILE>){
    
        if(/(\s+)(\d+)(\.)(\s+)([A-Z]{2})(\s+)([A-Z]{5})/){
# this matches certain lines in my data files
        $number++;
        print "$2=>$5\n"; # this works and prints my key and value tha
+t I want
        $hash_codes{$2}=>$5;#useless
        }
    }

[download]
Is the problem that I can't use $2 and $5 from my pattern match in this way ? I tried assigning like this: 
$key = $2;
$value = $5;
$hash{$key}=>$value;

[download]
but no joy either. Please help !

Thanks
basm101

In reply to Useless use of hash element in void context by basm101

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