antihero has asked for the wisdom of the Perl Monks concerning the following question:

C was my first language, and in my C class (and to a greater extent later in C++), I learned the importance of const and its use in creating safe code. I've been using perl now for about a year, and couldn't be happier. Perl is... well... you folks know the joy I'm feeling :)

At any rate, I was wondering... It seems that a lot of people use something like:
    my $filename = "/path/to/file/to/munge";

whereas I've been using something like:
    use constant FILENAME => '/path/to/file/to/munge';

Are there any advantages to using the former over the latter, provided the data doesn't get altered throughout the execution of the program? Am I in error to use a large number of constants at the beginning of a program to do configuration as opposed to local variables? Please enlighten! :)

Edit: chipmunk 2001-04-26