View Compilation Error

0_0_37814301_3536.cpp: In function 'void res(Node, Node, Node)':
0_0_37814301_3536.cpp:24:27: error: expected primary-expression before '.' token
  if(pos1.x==0||pos1.y==0||.x*k*k2*k1/pos1.x-pos2.y*k*k1*k2/pos1.y==0)v=0;
                           ^