View Compilation Error

0_0_18453788_23006.cpp: In function 'bool Solve(int)':
0_0_18453788_23006.cpp:85:80: error: expected primary-expression before 'if'
         cnt = Dis(Stack[i].x, Stack[i].y, Stack[(i+1)%n].x, Stack[(i+1)%n].y), if(cnt - buf > eps || cnt - buf < -eps) return false;
                                                                                ^
0_0_18453788_23006.cpp:88:64: error: expected primary-expression before 'if'
         cnt = Cross(Stack[i], Stack[(i+1)%n], Stack[(i+2)%n]), if(cnt - buf > eps || cnt - buf < -eps) return false;
                                                                ^