Eroare de compilare: main.cpp:18:11: error: reference to 'data' is ambiguous 18 | bool cmp( data a, data b) | ^~~~ In file included from /usr/include/c++/12.2.1/string:52, from /usr/include/c++/12.2.1/bits/locale_classes.h:40, from /usr/include/c++/12.2.1/bits/ios_base.h:41, from /usr/include/c++/12.2.1/ios:42, from /usr/include/c++/12.2.1/istream:38, from /usr/include/c++/12.2.1/sstream:38, from /usr/include/c++/12.2.1/complex:45, from /usr/include/c++/12.2.1/ccomplex:39, from /usr/include/c++/12.2.1/x86_64-pc-linux-gnu/bits/stdc++.h:54, from main.cpp:1: /usr/include/c++/12.2.1/bits/range_access.h:343:5: note: candidates are: 'template<class _Tp> constexpr const _Tp* std::data(initializer_list<_Tp>)' 343 | data(initializer_list<_Tp> __il) noexcept | ^~~~ /usr/include/c++/12.2.1/bits/range_access.h:333:5: note: 'template<class _Tp, long unsigned int _Nm> constexpr _Tp* std::data(_Tp (&)[_Nm])' 333 | data(_Tp (&__array)[_Nm]) noexcept | ^~~~ /usr/include/c++/12.2.1/bits/range_access.h:322:5: note: 'template<class _Container> constexpr decltype (__cont.data()) std::data(const _Container&)' 322 | data(const _Container& __cont) noexcept(noexcept(__cont.data())) | ^~~~ /usr/include/c++/12.2.1/bits/range_access.h:311:5: note: 'template<class _Container> constexpr decltype (__cont.data()) std::data(_Container&)' 311 | data(_Container& __cont) noexcept(noexcept(__cont.data())) | ^~~~ main.cpp:11:8: note: 'struct data' 11 | struct data | ^~~~ main.cpp:18:20: error: reference to 'data' is ambiguous 18 | bool cmp( data a, data b) | ^~~~ /usr/include/c++/12.2.1/bits/range_access.h:343:5: note: candidates are: 'template<class _Tp> constexpr const _Tp* std::data(initializer_list<_Tp>)' 343 | data(initializer_list<_Tp> __il) noexcept | ^~~~ /usr/include/c++/12.2.1/bits/range_access.h:333:5: note: 'template<class _Tp, long unsigned int _Nm> constexpr _Tp* std::data(_Tp (&)[_Nm])' 333 | data(_Tp (&__array)[_Nm]) noexcept | ^~~~ /usr/include/c++/12.2.1/bits/range_access.h:322:5: note: 'template<class _Container> constexpr decltype (__cont.data()) std::data(const _Container&)' 322 | data(const _Container& __cont) noexcept(noexcept(__cont.data())) | ^~~~ /usr/include/c++/12.2.1/bits/range_access.h:311:5: note: 'template<class _Container> constexpr decltype (__cont.data()) std::data(_Container&)' 311 | data(_Container& __cont) noexcept(noexcept(__cont.data())) | ^~~~ main.cpp:11:8: note: 'struct data' 11 | struct data | ^~~~ main.cpp:18:26: error: expression list treated as compound expression in initializer [-fpermissive] 18 | bool cmp( data a, data b) | ^ In file included from /usr/include/c++/12.2.1/bits/stl_algobase.h:71, Non zero exit status: 1