Eroare de compilare: user.cpp: In function ‘void add(sw39)’: user.cpp:24:9: error: request for member ‘inf’ in ‘nou’, which is of pointer type ‘stevea*’ (maybe you meant to use ‘->’ ?) nou.inf=info; ^~~ user.cpp: In function ‘bool empti()’: user.cpp:39:18: error: ‘null’ was not declared in this scope return (top!=null); ^~~~ user.cpp: In function ‘int main()’: user.cpp:52:24: error: request for member ‘ma’ in ‘top’, which is of pointer type ‘stevea*’ (maybe you meant to use ‘->’ ?) if(aux.mi==top.ma+1) ^~ user.cpp:54:17: error: no match for ‘operator=’ (operand types are ‘sw39’ and ‘stevea*’) aux=top; ^~~ user.cpp:6:8: note: candidate: constexpr sw39& sw39::operator=(const sw39&) struct sw39 ^~~~ user.cpp:6:8: note: no known conversion for argument 1 from ‘stevea*’ to ‘const sw39&’ user.cpp:6:8: note: candidate: constexpr sw39& sw39::operator=(sw39&&) user.cpp:6:8: note: no known conversion for argument 1 from ‘stevea*’ to ‘sw39&&’ user.cpp:56:13: error: ‘poz’ was not declared in this scope poz--; ^~~ user.cpp:59:24: error: request for member ‘mi’ in ‘top’, which is of pointer type ‘stevea*’ (maybe you meant to use ‘->’ ?) if(aux.ma==top.mi-1) ^~ user.cpp:61:17: error: no match for ‘operator=’ (operand types are ‘sw39’ and ‘stevea*’) aux=top; ^~~ user.cpp:6:8: note: candidate: constexpr sw39& sw39::operator=(const sw39&) struct sw39 ^~~~ user.cpp:6:8: note: no known conversion for argument 1 from ‘stevea*’ to ‘const sw39&’ user.cpp:6:8: note: candidate: constexpr sw39& sw39::operator=(sw39&&) user.cpp:6:8: note: no known conversion for argument 1 from ‘stevea*’ to ‘sw39&&’ user.cpp:64:9: error: expected ‘;’ before ‘}’ token } ^