How to count buildings

From OPU Wiki

How do you count how many buildings of a certain type exist ?

int CountBuildings(int player,map_id type)
{
  int cnt=0;
  Unit u;
  PlayerBuildingEnum enum1(player,type);

  while (enum1.GetNext(u)!=0)
    if (u.GetType()==type) ++cnt;

  return cnt;
}

I have submitted a request for this function to be included into the next SDK version. For now, you can add it to your source code, and just call it:

int tokamaks=CountBuildings(1,mapTokamak);