"Mark Cohen" <[EMAIL PROTECTED]> writes:
> While the use strict is quite clear to me "Perl pragma to restrict unsafe
> contructs" ,
> the use warnings "Perl pragma to control optional warnings" is not.
> What programming risks could I get without the use warnings ?
,----[ perldoc perllexwarn ]
| For example, consider the code below:
|
| use warnings ;
| my @a ;
| {
| no warnings ;
| my $b = @a[0] ;
| }
| my $c = @a[0];
|
| The code in the enclosing block has warnings enabled, but the inner
| block has them disabled. In this case that means the assignment to the
| scalar $c will trip the "Scalar value @a[0] better written as $a[0]"
| warning, but the assignment to the scalar $b will not.
| ...
`----
--
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
<http://learn.perl.org/> <http://learn.perl.org/first-response>
