View Compilation Error

0_0_9189117_17644.cpp:130: error: a call to a constructor cannot appear in a constant-expression
0_0_9189117_17644.cpp:130: error: ISO C++ forbids initialization of member `O'
0_0_9189117_17644.cpp:130: error: making `O' static
0_0_9189117_17644.cpp:130: error: invalid in-class initialization of static data member of non-integral type `Point'
0_0_9189117_17644.cpp: In member function `Point CH3D::gravity()':
0_0_9189117_17644.cpp:132: error: `O' undeclared (first use this function)
0_0_9189117_17644.cpp:132: error: (Each undeclared identifier is reported only once for each function it appears in.)