Re: Translating C "static arrays" into D?

[Steven Schveighoffer via Digitalmars-d]

On 2/26/18 12:54 PM, H. S. Teoh wrote:
What's the correct translation of the following C declarations into D?
        typedef double[1] mytype;

        void someFunc(mytype x, mytype *y, mytype **z);

        struct SomeStruct {
                mytype x;
                mytype *y;
                mytype **z;
        }

I need this to interface with an external C library.  Currently, I just
wrapped the above as-is inside an extern(C) block.  But I suspect it may
be wrong, because:

1) In C, declaring a function parameter of type double[1] is, IIRC, the
same thing as declaring it as double*.  But in D, double[1] passes one
double by value as a static array. So there may be an API mismatch here.

If you declare mytype as:

alias mytype = double[1];

Then you can use it pretty much anywhere. The only exception is when 
it's the exact type of a parameter. In that case, use ref:

extern(C) void someFunc(ref mytype x, mytype *y, mytype **z);

-Steve