View Compilation Error

0_0_1594761_13197.cpp:20: error: `b' has not been declared
0_0_1594761_13197.cpp:20: error: ISO C++ forbids declaration of `parameter' with no type
0_0_1594761_13197.cpp: In function `bool inside(double, double, int, Point)':
0_0_1594761_13197.cpp:21: error: `b' undeclared (first use this function)
0_0_1594761_13197.cpp:21: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_1594761_13197.cpp: In function `int main()':
0_0_1594761_13197.cpp:45: error: `cs' undeclared (first use this function)
0_0_1594761_13197.cpp:51: error: cannot convert `Point' to `int' for argument `3' to `bool inside(double, double, int, Point)'
0_0_1594761_13197.cpp:85: error: invalid initialization of non-const reference of type 'Point&' from a temporary of type 'Point'
0_0_1594761_13197.cpp:31: error: in passing argument 1 of `Point perp_line_pnt(Point&, Line)'