Thread: Free question

Does the free function deallocate the memory of matrices of pointers?

Code:

   int **matrix;
   int i;
   matrix = (int **) malloc ( NUMBER );
   for(  i = 0 ; i < NUMBER ; i++ )
       matrix[i] = (int *)malloc(  ANOTHER_N );
   }

    free(matrix);

free memory occupied by ANOTHER_N and then free NUMBER.