struct S {
  int b[][];
};

int main() {
  struct S x,y;
  x.b = (int[2][2])$lambda(int i,j) 0;
  y = x;
  y.b = (int[3][3])$lambda(int i,j) 8;
  y.b[0] = (int[3])$lambda(int i)7;
}