Variadic Struct Parameter

[Steven Schveighoffer]

On 1/12/21 12:46 PM, Q. Schroll wrote:
> On Tuesday, 12 January 2021 at 17:26:15 UTC, Jonathan Levi wrote:
>> Why is this not working?
>>
>> ```
>> struct S {
>>     int x;
>>     string y;
>> }
>>
>> void fun(S s ...) {
> 
> This is intended for arrays and classes, not structs. Using ... for 
> something other than arrays and c
> 
>>     fun(S(5,"hi"));
> 
> That one should compile...
> 
>>     fun(5,"hi");
> 
> and the second one not.
> 
> It's obvious why arrays work, it's the primary use case. I have no idea 
> why classes are allowed. That classes are allowed, but structs are not, 
> makes no sense to me.

Originally, structs did not allow a constructor. I'm thinking probably 
when they got constructors, the (almost never-used) variadic form of 
class parameter passing did not get ported to structs.

-Steve