Shit!! Thanks,
How asinine of me. ________________________________ From: Алексеев Александр <aleks...@rumonitor.ru> To: Soham Das <soham...@yahoo.co.in> Cc: beginners@perl.org Sent: Tuesday, 29 September, 2009 2:52:26 PM Subject: Re: Use Strict, Perl 5.10 and Global Symbol requires explicit package name @dates and %dates are two different variables in Perl. An error occurs, becouse %dates is not declared. -- Alexandr A Alexeev http://web20.su/ Soham Das пишет: > Take a look at the following snippet of code: > > #!/usr/bin/perl > use warnings; > use strict; > use Tie::Handle::CSV; > #Read Market Data > my $file1= shift @ARGV; > my $file2= shift @ARGV; > my $master_fh=Tie::Handle::CSV->new($file1,header=>1); > my $transact_fh=Tie::Handle::CSV->new($file2,header=>1); > #Date Extraction > > my @dates; > my $counter=0; > my $index=0; > while(<$master_fh>) > { > $dates{$counter}= $_->{'Date'} ; #Line a > $dates[$counter+1]=$index; > $counter+=2; > $index+=1; > } > my %datehash =...@dates; > $counter=0; > my %trades; > while(<$transact_fh>) > { > unless($trades{$_->{'Scrip'}}++) > { > $trades{$counter}=$_->{'Scrip'}; #Line b > $counter++; > $trades{$counter}=$counter-1; > $counter++; > } > } > > Now, I am using "use strict" directive (is that the right word, I am sorry I > am still stuck in C/C++ mode), now in Line a, I have changed from square > brackets to curly brackets for the hash work. The exactly same thing, is also > done in Line #b. > Why does, Line a throw a compiler error, "Global Symbol @dates requires > explicit package name" while Line b throws the same error if I do just the > opposite. Change the curly to sqaures. > Btw, I can't do away with use strict directive. > > Moreover, is there a better, more elegant way to do the same thing which I > have done inside the while loop? I am sure there is, because I think I > haven't use the features which make Perl beautiful. > And lastly, is there a way or a necessity to do, memory management. I agree, > I read somewhere Perl does it for you, but I am asking nevertheless.. For > example the array @dates, I need no longer, so can I do some delete() or > something like that for the entire array itself. > Thanks > Soham > > > Try the new Yahoo! India Homepage. Click here. > http://in.yahoo.com/trynew > -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/ From cricket scores to your friends. Try the Yahoo! India Homepage! http://in.yahoo.com/trynew
