View Compilation Error

0_0_6712294_27159.cpp:6:13: "(" may not appear in macro parameter list
0_0_6712294_27159.cpp: In function `int dis(point, point)':
0_0_6712294_27159.cpp:15: error: `Abs' undeclared (first use this function)
0_0_6712294_27159.cpp:15: error: (Each undeclared identifier is reported only once for each function it appears in.)