Strange behavior of iota

[Adam D Ruppe]

On Tuesday, 15 February 2022 at 21:48:29 UTC, bachmeier wrote:
>     writeln(iota(v.length,-1,-1));

This would be like

for(a = v.length; a > cast(size_t) -1, a += -1)


That (cast(size_t) -1) is the same as thing.max, meaning a will 
never be greater than it.

> Why does the first argument to iota have to be an int, and why 
> isn't there an error message when I pass something else?

Yeah, perhaps when you give it that -1 as the second argument it 
should see it is signed and throw something.