Before this digresses into a tangental discussion - I rarely use prototypes, and yes I do know why I want to use one in this case.

I prefer to place subroutines at the bottom of my programs, which creates a problem with using a prototyped sub. The obvious answer (to me) is to use a BEGIN block, but this doesn't work: 

use strict;
use warnings;

foo('bar');

BEGIN{
    sub foo ($){
        print "foo called: @_\n";
    }
}
# gives warning message:
# main::foo() called too early to check prototype ...

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While the following does the job, and I'm ok with it, I'm curious as to why the BEGIN block doesn't work. Can anyone provide some enlightenment? 

use strict;
use warnings;

sub foo ($);

foo('bar');

sub foo ($){
    print "foo called: @_\n";
}

[download]

In reply to BEGIN block and prototyped subroutines by hangon

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