Nested function declarations

[Dan Olson]

dennis luehring <dl.soluz at gmx.net> writes:

>> They're useful for testing:
>>
>> unittest {
>> 	int foo();
>> 	static assert (is(ReturnType!foo == int));
>> }
>
> and else? is it worth?

Don't class function declarations have the same issue?  You can declare
but all you'll get is a link error.  Unless there some way like C++ to
provide a definition elsewhere.

class C
{
   int foo();
}

void main()
{
}

superarray_error.obj(superarray_error) 
 Error 42: Symbol Undefined _D16superarray_error1C3fooMFZi
--- errorlevel 1