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Postings from December 2021
On Mon, Dec 27, 2021 at 12:35 PM Ovid via perl5-porters <
perl5-porters@perl.org> wrote:
>
> my @values = (in => "data.csv");
> $values[2]++;
>
> Except that $values[2] was the string "n/a" and now it's "1".
>
Huh? $values[2] was undefined.
> The core of the idea is simple. it would be lovely to have something to
> prevent implicit coercion in a given lexical scope:
>
> use explicit;
> my $num = 3; # integer
> $num += .42; # fatal because it creates a float
>
What am I missing?
sub increment_integers_or_die {
defined(wantarray()) and croak("increment_integers_or_die called in
non-void context");
for my $numb (@_){
/\D/ and die "NOT AN INTEGER: >>>$numb<<<\n";
$numb++;
}
}
--
"Lay off that whiskey, and let that cocaine be!" -- Johnny Cash
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