This 
                  |||||||||||||
                  VVVVVVVVVVVVV
my $sum = calcsum(my $funcSum);<<<<<
                  ^^^^^^^^^^^^^
                  |||||||||||||

[download]
is equivalent to calcsum(undef);

In reply to Re: Use of uninitialized value in addition (+) by Anonymous Monk
in thread Use of uninitialized value in addition (+) by Anonymous Monk

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