Compiletime Table

[D_Learner via Digitalmars-d-learn]

I was wondering how I could change the code below such the `bmBc` 
is computed at compile time . The one below works for runtime but 
it is not ideal since I need to know the  `bmBc` table at 
compile-time . I could appreciate advice on how I could improve 
on this.


    import std.conv:to;
    import std.stdio;

    int [string]  bmBc;
    immutable string pattern = "GCAGAGAG";
    const int size = to!int(pattern.length);

     struct king {

            void  calculatebmBc(int i)()
            {
                    static if ( i < size -1 )
                           
bmBc[to!string(pattern[i])]=to!int(size-i-1);

                  //        bmBc[pattern[i]] ~= i-1;

                    calculatebmBc!(i+1)();
            }
            void calculatebmBc(int i: size-1)() {

            }
    }

    void main(){
      king myKing;

      const  int start = 0;
      myKing.calculatebmBc!(start)();
     //1.   enum  bmBcTable =  bmBc;

    }