Re^2: Data::Table - empty values - avoid warnings

[ikegami]

Wrong warning category.

>perl -wle"no warnings 'uninitialized'; print '' + 4"
Argument "" isn't numeric in addition (+) at -e line 1.
4

>perl -wle"no warnings 'numeric'; print '' + 4"
4

When in doubt use diagnostics or consult perldiag.

>perl -Mdiagnostics -wle"print '' + 4"
Argument "" isn't numeric in addition (+) at -e line 1 (#1)
    (W numeric) The indicated string was fed as an argument to an oper
+ator
    that expected a numeric value instead.  If you're fortunate the me
+ssage
    will identify which operator was so unfortunate.

4

[GertMT]

Thanks, often it directs me to the solution as well but couldn't think of a 'generic' enough fix. I tried something like:

$t->colsMap(sub { $_->[2] = $_->[0] + $_->[1] if ( length( $_->[1] ) > 0 ) } );

but that only worked in case of blanks. Happy to have found some alternatives.
thanks again.