Re: Re: Use of uninitialized value in concatenation (.) or string

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Re: Re: Re: Use of uninitialized value in concatenation (.) or string by KPeter0314 (Deacon) on May 20, 2003 at 22:21 UTC
What is meant is that use strict; requires that variables be initialized. To quote from the perldoc:strict where strict vars is implied by not specifying what to be strict about: `"strict vars" This generates a compile-time error if you access a variable that wasn't declared via "our" or "use vars", localized via "my()", or wasn't fully qualified.` [download] The use vars qw($OURVAR) = (); pragma actually declares the variable $OURVAR and initializes it to a known null value instead of leaving it uninitialized. Perl cares about the difference. -Kurt	[reply] [d/l]

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Re: Re: Re: Use of uninitialized value in concatenation (.) or string
by KPeter0314 (Deacon) on May 20, 2003 at 22:21 UTC

use strict;

To quote from the perldoc:strict where strict vars is implied by not specifying what to be strict about:

     "strict vars"
           This generates a compile-time error if you access a
           variable that wasn't declared via "our" or "use vars",
           localized via "my()", or wasn't fully qualified.
[download]

use vars qw($OURVAR) = ();

-Kurt

[reply]
[d/l]