...that I wanted to get the template params. Sometimes I had to add alias declarations...

...Explicit module `friendship` (#43)
34  Pass value params byref (#34)
34  auto-member objects (#45...

...C functions out there with non-const params that do not modify them.

Then there...

...template
                    behavior for implicit conversion to shared params
           Product: D
           Version: 2.040
          Platform: x86...

...Explicit module `friendship` (#43)
34  Pass value params byref (#34)
34  auto-member objects (#45...

...to params
...
// Set nparams to the actual length of params.
*(&rec + Rec.offset) = rec.params...

...ushort nparams;
  ushort options;
  NoLength!(Parameter[], "nparams") params;
}
...
foreach(i,m; rec2.tupleof){
  static if...

...ushort[] params; // this has nparams elements
}

Rec2 rec2 = {index:1, nparams:2, options:~0, params...

...Parameter[] params;
}
struct Parameter{
  ParamType pt;
  union{
    STRING str;
    CV param;
  }
}

etc etc

for params...

...already allows you to write

check!fun(params); // no need to give explictly the EL...