Help?

[Mike Parker]

On Friday, 30 August 2013 at 17:28:12 UTC, Manu wrote:
> struct MyStruct; // <- forward declared (opaque type, never 
> defined)
>
> MyStruct*[] arrayOfPointers;
>
> arrayOfPointers ~= null; // appending doesn't work
> arrayOfPointers = new MyStruct*[n]; // or just allocating the 
> array doesn't
> work either
>
> Complains:
> 1>code.d(84): Error: struct MyStruct is forward referenced when 
> looking for
> 'toHash'
> 1>code.d(84): Error: struct MyStruct is forward referenced when 
> looking for
> 'opCmp'
> 1>code.d(84): Error: struct MyStruct is forward referenced when 
> looking for
> 'toString'
> 1>code.d(84): Error: struct MyStruct unknown size
> 1>code.d(84): Error: struct MyStruct no size yet for forward 
> reference
> 1>code.d(84): Error: struct MyStruct unknown size
> 1>code.d(84): Error: struct MyStruct no size yet for forward 
> reference
>
> What's the go here?
> Why would it need any of that information? It's just a 
> pointer...

http://d.puremagic.com/issues/show_bug.cgi?id=10451

A couple of other forward-ref bugs relating to opaque structs 
have been recently fixed in git master. If I knew where to look 
or what to do, I'd fix this one myself. It's an ongoing source of 
bug reports for Derelict and is bugging the hell out of me.