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View Compilation Error

0_0_14716165_24662.cpp: In function 'bool OnSegment(Point, Point, Point)':
0_0_14716165_24662.cpp:60:10: error: no match for 'operator==' (operand types are 'Point' and 'Point')
     if (p==a || p==b) return true;
          ^
0_0_14716165_24662.cpp:60:10: note: candidates are:
In file included from 0_0_14716165_24662.cpp:19:0:
GCC4.9.2/x86_64-w64-mingw32/include/c++/functional:2511:5: 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
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/functional:2511:5: note:   template argument deduction/substitution failed:
0_0_14716165_24662.cpp:60:12: note:   cannot convert 'p' (type 'Point') to type 'std::nullptr_t'
     if (p==a || p==b) return true;
            ^
In file included from 0_0_14716165_24662.cpp:19:0:
GCC4.9.2/x86_64-w64-mingw32/include/c++/functional:2505:5: 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
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/functional:2505:5: note:   template argument deduction/substitution failed:
0_0_14716165_24662.cpp:60:12: note:   'Point' is not derived from 'const std::function<_Res(_ArgTypes ...)>'
     if (p==a || p==b) return true;
            ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/queue:64:0,
                 from 0_0_14716165_24662.cpp:11:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_queue.h:271:5: note: template<class _Tp, class _Seq> bool std::operator==(const std::queue<_Tp, _Seq>&, const std::queue<_Tp, _Seq>&)
     operator==(const queue<_Tp, _Seq>& __x, const queue<_Tp, _Seq>& __y)
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_queue.h:271:5: note:   template argument deduction/substitution failed:
0_0_14716165_24662.cpp:60:12: note:   'Point' is not derived from 'const std::queue<_Tp, _Seq>'
     if (p==a || p==b) return true;
            ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/map:62:0,
                 from 0_0_14716165_24662.cpp:10:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_multimap.h:903:5: note: template<class _Key, class _Tp, class _Compare, class _Alloc> bool std::operator==(const std::multimap<_Key, _Tp, _Compare, _Alloc>&, const std::multimap<_Key, _Tp, _Compare, _Alloc>&)
     operator==(const multimap<_Key, _Tp, _Compare, _Alloc>& __x,
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_multimap.h:903:5: note:   template argument deduction/substitution failed:
0_0_14716165_24662.cpp:60:12: note:   'Point' is not derived from 'const std::multimap<_Key, _Tp, _Compare, _Alloc>'
     if (p==a || p==b) return true;
            ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/map:61:0,
                 from 0_0_14716165_24662.cpp:10:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_map.h:1000:5: note: template<class _Key, class _Tp, class _Compare, class _Alloc> bool std::operator==(const std::map<_Key, _Tp, _Compare, _Alloc>&, const std::map<_Key, _Tp, _Compare, _Alloc>&)
     operator==(const map<_Key, _Tp, _Compare, _Alloc>& __x,
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_map.h:1000:5: note:   template argument deduction/substitution failed:
0_0_14716165_24662.cpp:60:12: note:   'Point' is not derived from 'const std::map<_Key, _Tp, _Compare, _Alloc>'
     if (p==a || p==b) return true;
            ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_map.h:63:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/map:61,
                 from 0_0_14716165_24662.cpp:10:
GCC4.9.2/x86_64-w64-mingw32/include/c++/tuple:846:5: note: template<class ... _TElements, class ... _UElements> constexpr bool std::operator==(const std::tuple<_Args1 ...>&, const std::tuple<_Args2 ...>&)
     operator==(const tuple<_TElements...>& __t,
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/tuple:846:5: note:   template argument deduction/substitution failed:
0_0_14716165_24662.cpp:60:12: note:   'Point' is not derived from 'const std::tuple<_Args1 ...>'
     if (p==a || p==b) return true;
            ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/tuple:39:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_map.h:63,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/map:61,
                 from 0_0_14716165_24662.cpp:10:
GCC4.9.2/x86_64-w64-mingw32/include/c++/array:232:5: note: template<class _Tp, long long 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)
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/array:232:5: note:   template argument deduction/substitution failed:
0_0_14716165_24662.cpp:60:12: note:   'Point' is not derived from 'const std::array<_Tp, _Nm>'
     if (p==a || p==b) return true;
            ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/stack:61:0,
                 from 0_0_14716165_24662.cpp:9:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_stack.h:246:5: note: template<class _Tp, class _Seq> bool std::operator==(const std::stack<_Tp, _Seq>&, const std::stack<_Tp, _Seq>&)
     operator==(const stack<_Tp, _Seq>& __x, const stack<_Tp, _Seq>& __y)
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_stack.h:246:5: note:   template argument deduction/substitution failed:
0_0_14716165_24662.cpp:60:12: note:   'Point' is not derived from 'const std::stack<_Tp, _Seq>'
     if (p==a || p==b) return true;
            ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/deque:64:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/stack:60,
                 from 0_0_14716165_24662.cpp:9:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_deque.h:2029:5: note: template<class _Tp, class _Alloc> bool std::operator==(const std::deque<_Tp, _Alloc>&, const std::deque<_Tp, _Alloc>&)
     operator==(const deque<_Tp, _Alloc>& __x,
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_deque.h:2029:5: note:   template argument deduction/substitution failed:
0_0_14716165_24662.cpp:60:12: note:   'Point' is not derived from 'const std::deque<_Tp, _Alloc>'
     if (p==a || p==b) return true;
            ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/deque:64:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/stack:60,
                 from 0_0_14716165_24662.cpp:9:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_deque.h:258:5: note: template<class _Tp, class _RefL, class _PtrL, class _RefR, class _PtrR> bool std::operator==(const std::_Deque_iterator<_Tp, _Ref, _Ptr>&, const std::_Deque_iterator<_Tp, _RefR, _PtrR>&)
     operator==(const _Deque_iterator<_Tp, _RefL, _PtrL>& __x,
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_deque.h:258:5: note:   template argument deduction/substitution failed:
0_0_14716165_24662.cpp:60:12: note:   'Point' is not derived from 'const std::_Deque_iterator<_Tp, _Ref, _Ptr>'
     if (p==a || p==b) return true;
            ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/deque:64:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/stack:60,
                 from 0_0_14716165_24662.cpp:9:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_deque.h:251:5: note: template<class _Tp, class _Ref, class _Ptr> bool std::operator==(const std::_Deque_iterator<_Tp, _Ref, _Ptr>&, const std::_Deque_iterator<_Tp, _Ref, _Ptr>&)
     operator==(const _Deque_iterator<_Tp, _Ref, _Ptr>& __x,
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_deque.h:251:5: note:   template argument deduction/substitution failed:
0_0_14716165_24662.cpp:60:12: note:   'Point' is not derived from 'const std::_Deque_iterator<_Tp, _Ref, _Ptr>'
     if (p==a || p==b) return true;
            ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/set:62:0,
                 from 0_0_14716165_24662.cpp:6:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_multiset.h:777:5: note: template<class _Key, class _Compare, class _Alloc> bool std::operator==(const std::multiset<_Key, _Compare, _Alloc>&, const std::multiset<_Key, _Compare, _Alloc>&)
     operator==(const multiset<_Key, _Compare, _Alloc>& __x,
     ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_multiset.h:777:5: note:   template argument deduction/substitution failed:
0_0_14716165_24662.cpp:60:12: note:   'Point' is not derived from 'const std::multiset<_Key, _Compare, _Alloc>'
     if (p==a || p==b) return true;
            ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/set:61:0,
                 from 0_0_14716165_24662.cpp:6:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_set.h:793:5: note: template<class _Key, class _Compare, class _Alloc> bool std::operator==(const std::set<_Key, _Compare, _Alloc>&, const std::set<_Key, _Compare, _Alloc>&)
     operator==(const set<_Key, _Compare, _Alloc>& __x,
     ^
GCC4.9.2/x86_64-w64-mingw32/include/


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