Hi guys,

I am writing a program which is going to create an object of a perl class and uses a bunch of constants. I don't want to export those constants because I can access them through my class object. I was going through the constant man page and saw that perl replaces constant values by their inline subroutine calls.


My question is: Is using constants slower than using variables? If yes, is there a better way to use constants?

I am asking this because my program is going to be a sendmail milter (a program which is called for each stage of an SMTP session to decide whether the message is acceptable depending on sender, rcpt, etc). It is going to be bombed with SMTP transactions at a very high rate.


A sample snippet of code: 

  my $logobj = new Merce::Log;
  $logobj->log($logobj->PRIORITY, $logobj->MSGTMPL);

[download]

I have seen guys using $:: for constants or exporting them but I don't want to do that. You might think I am doing premature optimization but I was curious to know.

In reply to The best way to use constants by saurabh.hirani

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