How can I implement the function overloading in Perl ? I read about the operator overloading, I do not know how to implement the function overloading. Thanks in advance ?
package MYCALC; use Exporter; our @EXPORT = (); our @ISA = qw(Exporter); our @EXPORT_OK = qw(addition multi); our %EXPORT_TAGS = (DEFAULT => [qw(&addition)],Both => [qw(&addition & +multi)]); sub addition { return $_[0] + $_[1]; } sub multi { return $_[0] * $_[1]; } 1; Program: use strict; use warnings; my @list = qw (2 2); use Module qw(:DEFAULT); print addition(@list),"\n"; Above coding is my module MYCALC and the program which using this module, I have not exported any function using @EXPORT, but I have used the DEFAULT in %EXPORT_TAGS with the function addition, when I call this function from the main it says the error as,
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how to create a flat file database as shown below s.no name age city phone 0 hema 22 Calcutta 4312542 1 hema 21 Bangalore 2344345 2 ganesh 25 delhi 2445454 3 kartik 45 pune 4312121 4 santosh 25 Hyderabad 2254231 5 kumar 25 mysore 2344567 6 gita 34 mangalore 6532123 7 gita 32 pune 2213456 Q1.print the details of the person who r from bangalore q2.Replace the city name managlore to pune q3.prints no of person having name gita and hema q4.print how many are of age 25.
I have one question regarding to eval function. I know eval function is use for error checking but I am not able to understand below line. eval \'exec perl -S $0 ${1+\"$@\"}\' if 0; $0 for script name $@ set if error occur
Hi, I am a accountant. I am preparing a balance sheet but because of staff shortage and time pressures I cant complete it on time. There is lot of common data with last years which I need not retype and I can manage by editing last year’s balance sheet ? Is their any software on net where I can do this easily??
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We all know private variables exist in perl. But do private METHODS exist in perl ? Eg ?
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There is no strict data types in perl unlike in other high level languages like Java so wouldn't that be a problem if a code in perl is to be a written by a big team of 20+ members ?"
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Assuming both a local($var) and a my($var) exist, what's the difference between ${var} and ${"var"}?
