Calling D functions from C

[BCS]

Reply to Downs,

> BCS wrote:
> 
>> Reply to Matthias,
>> 
>>> # extern (C) int myFunctionWrapper (char a, int b, char* c)
>>> # {
>>> #    return myFunction (a,b,c); // myFunction is a normal D
>>> function.
>>> # }
>> that deserves a template.
>> I guess I known what to do at lunch today.
> template Forward(string NAME) {
> mixin("extern(C) ReturnType!(&"~NAME~")
> c_"~NAME~"(ParameterTypeTuple!(&"~NAME~") p) {
> return "~NAME~"(p);
> }");
> }
> Untested, but should work.
> 
> --downs
> 

maybe, I'd kind rather not use a mixin for that. (I avoid them wherever I 
can) I'll take real a pass at it later.

On second look it seem the mixin is needed to make the name work but it seem 
to be over kill for the rest

// untested
template Forward(alias NAME)
{
  mixin(
   "extern(C) ReturnType!(&NAME) c_"~NAME.stringof~"(ParameterTypeTuple!(&NAME) 
p) { return NAME(p);}"
  );
}