View Compilation Error

0_0_18127050_16431.cpp: In function 'int cross(point, point)':
0_0_18127050_16431.cpp:9:12: error: expected primary-expression before 'long'
 #define ll long long
            ^
0_0_18127050_16431.cpp:38:50: note: in expansion of macro 'll'
 inline int cross(point a, point b) { return dcmp(ll(a.x) * ll(b.y) - ll(a.y) * ll(b.x)); }
                                                  ^
0_0_18127050_16431.cpp: In function 'double len(int, int)':
0_0_18127050_16431.cpp:9:12: error: expected primary-expression before 'long'
 #define ll long long
            ^
0_0_18127050_16431.cpp:47:14: note: in expansion of macro 'll'
  return sqrt(ll(dx)*ll(dx) + ll(dy)*ll(dy));
              ^