$ echo Value of glob construct can be "0"; test with defined() at perl
+.pl line 65. |splain
Value of glob construct can be "0"; test with defined() at perl.pl lin
+e 65. (#1)
(W misc) In a conditional expression, you used <HANDLE>, <*> (glob
+),
each(), or readdir() as a boolean value. Each of these constructs
can return a value of "0"; that would make the conditional express
+ion
false, which is probably not what you intended. When using these
constructs in conditional expressions, test their values with the
defined operator.
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