Eroare de compilare: user.cpp: In function ‘bool inter(segm, segm)’: user.cpp:34:9: error: no match for ‘operator==’ (operand types are ‘punct’ and ‘punct’) if(B==D||A==D||C==B||A==C) ^ user.cpp:34:9: note: candidates are: In file included from /usr/include/c++/4.8/bits/stl_algo.h:66:0, from /usr/include/c++/4.8/algorithm:62, from user.cpp:2: /usr/include/c++/4.8/functional:2540:5: note: template<class _Res, class ... _Args> bool std::operator==(std::nullptr_t, const std::function<_Res(_ArgTypes ...)>&) operator==(nullptr_t, const function<_Res(_Args...)>& __f) noexcept ^ /usr/include/c++/4.8/functional:2540:5: note: template argument deduction/substitution failed: user.cpp:34:11: note: cannot convert ‘B’ (type ‘punct’) to type ‘std::nullptr_t’ if(B==D||A==D||C==B||A==C) ^ In file included from /usr/include/c++/4.8/bits/stl_algo.h:66:0, from /usr/include/c++/4.8/algorithm:62, from user.cpp:2: /usr/include/c++/4.8/functional:2534:5: note: template<class _Res, class ... _Args> bool std::operator==(const std::function<_Res(_ArgTypes ...)>&, std::nullptr_t) operator==(const function<_Res(_Args...)>& __f, nullptr_t) noexcept ^ /usr/include/c++/4.8/functional:2534:5: note: template argument deduction/substitution failed: user.cpp:34:11: note: ‘punct’ is not derived from ‘const std::function<_Res(_ArgTypes ...)>’ if(B==D||A==D||C==B||A==C) ^ In file included from /usr/include/c++/4.8/functional:55:0, from /usr/include/c++/4.8/bits/stl_algo.h:66, from /usr/include/c++/4.8/algorithm:62, from user.cpp:2: /usr/include/c++/4.8/tuple:811:5: note: template<class ... _TElements, class ... _UElements> constexpr bool std::operator==(const std::tuple<_Elements ...>&, const std::tuple<_Elements ...>&) operator==(const tuple<_TElements...>& __t, ^ /usr/include/c++/4.8/tuple:811:5: note: template argument deduction/substitution failed: user.cpp:34:11: note: ‘punct’ is not derived from ‘const std::tuple<_Elements ...>’ if(B==D||A==D||C==B||A==C) ^ In file included from /usr/include/c++/4.8/tuple:39:0, from /usr/include/c++/4.8/functional:55, from /usr/include/c++/4.8/bits/stl_algo.h:66, from /usr/include/c++/4.8/algorithm:62, from user.cpp:2: /usr/include/c++/4.8/array:228:5: note: template<class _Tp, unsigned int _Nm> bool std::operator==(const std::array<_Tp, _Nm>&, const std::array<_Tp, _Nm>&) operator==(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two) ^ /usr/include/c++/4.8/array:228:5: note: template argument deduction/substitution failed: user.cpp:34:11: note: ‘punct’ is not derived from ‘const std::array<_Tp, _Nm>’ if(B==D||A==D||C==B||A==C) ^ In file included from /usr/include/c++/4.8/random:52:0, from /usr/include/c++/4.8/bits/stl_algo.h:65,