How do you pass in a static array by reference?

[Jakob Ovrum via Digitalmars-d-learn]

On Monday, 8 February 2016 at 06:01:24 UTC, Jakob Ovrum wrote:
> On Monday, 8 February 2016 at 05:59:43 UTC, Enjoys Math wrote:
>>
>>
>> I have several class members:
>>
>> Arc[4] arcs;
>> Arc[4] arcs_2;
>>
>> and Id like to initialize them with the same function, so how 
>> do I "pass them in" by reference?
>
> void foo(ref Arc[4] arr)
> {
>     …
> }
>
> The dimension can of course be templatized:
>
> void foo(size_t n)(ref Arc[n] arr)
> {
>     …
> }

Alternatively you can take a slice of the fixed-length array:

void foo(Arc[] arr)
{
     …
}

foo(arcs[]);
foo(arcs_2[]);