Re^13: Using a sting with a variable name

use strict 'vars'; let's the programmer know that a variable they used doesn't exist.

Could you first define what you mean by exists in this context? Because:

package main;
use strict 'vars';
say $var;    # Error, ($var doesn't "exist"?)
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package main;
use strict 'vars';
say $::var;  # No error ($::var does "exist"?)
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But that's clearly nonsense as in both snippets, $var and $::var are the same, and a variable cannot both exist and not exist.

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Re^14: Using a sting with a variable name by ikegami (Patriarch) on May 11, 2009 at 20:25 UTC
Could you first define what you mean by exists in this context? You're asking the wrong person. I'm trying to satisfy the OP, and like I said before, his question was a bit vague. Perhaps he would like to know if there's exists a given variable in the program. (That can be determined by peeking at the symtab, with the caveat I previously mentioned.)	[reply]