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Postings from September 2023
On Tue, 5 Sep 2023 22:12:38 +0100 "Paul \"LeoNerd\" Evans" <leonerd@leonerd.org.uk> wrote:
> On Tue, 5 Sep 2023 22:55:46 +0300
> Ivan Vorontsov <ivrntsv@yandex.ru> wrote:
>
> > Wouldn't it be convenient to write as:
> > # $v, $w, $x are mandatory; $y, $z are optional
> > sub bar ($v, $w //= 42, $x, $y //= 1, $z = 2) {
> > }
>
> If you want $w to be mandatory, you can't put a defaulting expression
> on it.
>
> If you still want its value to be 42 if the caller *explicitly decided
> to pass undef*, that's that regular code inside the function is for.
>
> sub bar ($v, $w, $x, $y //= 1, $z = 2) {
> $w //= 42;
> ...
> }
Accepted.
--
Ivan Vorontsov <ivrntsv@yandex.ru>
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