Re: UPDATE2:

I can't see what's confusing you about \"1" resulting in a SCALAR - I remember reading somewhere, I think it's in one of the O'Reillys, but senility and alcohol together combine to prevent me from remembering exactly where, that a primitive means of constructing a constant relies on this - using idioms of the form: 

*PI = \3.14159;
*STR = \'Some string';
# etc.

[download]
Soooo, AFAICT, pre-declaring the literal as a constant solves your problem... 
use warnings;
use strict;
no strict qw/vars/;

*STR = \'Some string';
my ($str1, $str2) = (\'Some string', $STR);

sub foo(\$) { return }

eval { foo($STR) };
warn "$@";
eval { foo($str1) };
warn "$@";
eval { foo($str2) };
warn "$@";

[download]
Giving 
$ perl tst.pl
Warning: something's wrong at tst.pl line 10.
Warning: something's wrong at tst.pl line 12.
Warning: something's wrong at tst.pl line 14.

[download]
Doesn't it ?

A user level that continues to overstate my experience :-))

In reply to Re: Prototype for constant items??? by Bloodnok
in thread Prototype for constant items??? by LanX

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