Arrays of functions, function signatures and template instantiation

[JR]

On Tuesday, 30 April 2013 at 02:38:27 UTC, anonymous wrote:
> To get rid of the cast:
[...]

Instantiating the template with a function parameter causes a 
compilation error when actually calling the function;

----------
   asdf.d:13: Error: variable asdf.MatrixWalker!(@system 
void(string major, uint minor, void function(string, uint) func), 
void function(string, uint)[uint][string]).applyFunc.func cannot 
be declared to be a function
   asdf.d:16: Error: function expected before (), not func of type 
_error_
----------

I have a vague feeling I had it working like that at one point 
but I cannot recall with any degree of certainty.