Eroare de compilare: user.cpp: In function ‘bool intersection(std::vector<std::pair<double, double> >&, const std::pair<double, double>&, const std::pair<double, double>&)’: user.cpp:41:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0 ; i < poligon.size() ; ++i ){ ^ user.cpp:44:48: error: reference to ‘next’ is ambiguous int d1 = det(p1,p2,x),d2 = det(p1,p2,poligon[next[i]]); ^ user.cpp:13:5: note: candidates are: int next [31] int next[maxdim],prev[maxdim]; ^ In file included from /usr/local/include/c++/4.8.0/bits/stl_algobase.h:66:0, from /usr/local/include/c++/4.8.0/vector:60, from user.cpp:2: /usr/local/include/c++/4.8.0/bits/stl_iterator_base_funcs.h:184:5: note: template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type) next(_ForwardIterator __x, typename ^ user.cpp:47:27: error: reference to ‘prev’ is ambiguous if ( det(p1,p2,poligon[prev[i]]) * det(p1,p2,poligon[next[i]]) < 0 ){ ^ user.cpp:13:18: note: candidates are: int prev [31] int next[maxdim],prev[maxdim]; ^ In file included from /usr/local/include/c++/4.8.0/bits/stl_algobase.h:66:0, from /usr/local/include/c++/4.8.0/vector:60, from user.cpp:2: /usr/local/include/c++/4.8.0/bits/stl_iterator_base_funcs.h:193:5: note: template<class _BidirectionalIterator> _BidirectionalIterator std::prev(_BidirectionalIterator, typename std::iterator_traits<_Iter>::difference_type) prev(_BidirectionalIterator __x, typename ^ user.cpp:47:57: error: reference to ‘next’ is ambiguous if ( det(p1,p2,poligon[prev[i]]) * det(p1,p2,poligon[next[i]]) < 0 ){ ^ user.cpp:13:5: note: candidates are: int next [31] int next[maxdim],prev[maxdim]; ^ In file included from /usr/local/include/c++/4.8.0/bits/stl_algobase.h:66:0, from /usr/local/include/c++/4.8.0/vector:60, from user.cpp:2: /usr/local/include/c++/4.8.0/bits/stl_iterator_base_funcs.h:184:5: note: template<class _ForwardIterator> _ForwardIterator std::next(_ForwardIterator, typename std::iterator_traits<_Iter>::difference_type) next(_ForwardIterator __x, typename ^ user.cpp: In function ‘void get_points(std::vector<std::pair<double, double> >&, const std::pair<double, double>&, const std::pair<double, double>&, std::vector<std::pair<double, double> >&, const int&)’: user.cpp:60:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0 ; i < poligon.size() ; ++i ){ ^ user.cpp:61:57: error: reference to ‘next’ is ambiguous int d1 = det(p1,p2,poligon[i]),d2 = det(p1,p2,poligon[next[i]]); ^ user.cpp:13:5: note: candidates are: int next [31] int next[maxdim],prev[maxdim]; ^