[Issue 16772] ICE when using extern(C++) and ubyte[] return value

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=16772

Sprink <sprink.noreply at gmail.com> changed:

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--- Comment #1 from Sprink <sprink.noreply at gmail.com> ---
(In reply to Atila Neves from comment #0)
> extern(C++) ubyte[] foo() { return []; }
> 
> dmd foo.d:
> 
> Error: Internal Compiler Error: unsupported type ubyte[]

There is no equivalent C++ type that can be represented by "ubyte[]". In D an
array consists of a pointer and a size. In C++ an array is essentially just a
pointer.

This code will result in a compiler error in C++, as the two functions have the
same signature.

void foo(int* in)
{
}

void foo(int in[])
{
}

Use a pointer if you want the function to be extern(C++)

extern(C++) ubyte* foo() { return null; }

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