Send empty assoc array to function
666total at wp.pl
Thu Jul 9 21:13:49 UTC 2020
On Thursday, 9 July 2020 at 20:24:11 UTC, Steven Schveighoffer
> On 7/9/20 4:04 PM, JN wrote:
>> On Thursday, 9 July 2020 at 19:53:42 UTC, JN wrote:
>>> void foo(int[int] bar)
>>> // ...
>>> Is it possible to send an empty array literal?
>>> foo( [ 0 : 2 ] ) works
>>> foo(  ) doesn't
>>> int[int] empty;
>>> works but it's two lines
>> Hmm, foo(null) seems to work, but is it correct way to do it?
> Yes, that is correct.
Interesting. Often in D discussion, an argument pops up that the
language should be protecting against hidden breakages from API
changes. This would be an example of that happening.
void foo(int[int] bar), someone calls it with a null, suddenly
the signature changes to void foo(int* bar) and you will be
sending a null pointer and possibly breaking the app.
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