How to a function return return specific counts

Below is a function which counts for each character in a grid. I want to make this function return the counts for each character but I am stuck. Please, how can I improve the function below so that I can return each count which I require to process my other methods.

Thanks

int getNeighborhood(const char** grid, int N, int row, int col, int& bCount, int& fCount, int& rCount, int& gCount){
   int currRow;
   int currCol;
   int countB = 0;
   int countF = 0;
   int countR = 0;
   int countG = 0;

   //loop through all 8 grids surrounding the current row and column.
   for(int i = -1; i < 2; i++)            
   {
      for(int j = -1; j < 2; j++){
         currRow = row + i;               //current row.
         currCol = col + i;               //current column.

         if(currRow >= 0 && currRow < N && currCol >= 0 && currCol < N){
            if(grid[row][col] == 'B')
            {
               ++countB;
            }
            if(grid[row][col] == 'F')
            {
               ++countF;
            }
            if(grid[row][col] == 'R')
            {
               ++countR;
            }
            if(grid[row][col] == 'G')
            {
               ++countG;
            }
         }
      }
   //return statement required
   }