grindina.cpp:16: error: ISO C++ forbids initialization of member 'x' grindina.cpp:16: error: making 'x' static grindina.cpp:16: error: ISO C++ forbids in-class initialization of non-const static member 'x' grindina.cpp:16: error: ISO C++ forbids initialization of member 'y' grindina.cpp:16: error: making 'y' static grindina.cpp:16: error: ISO C++ forbids in-class initialization of non-const static member 'y' grindina.cpp: In function 'bool is_inside(pct, std::vector<pct, std::allocator<pct> >)': grindina.cpp:51: warning: comparison between signed and unsigned integer expressions