Eroare de compilare in evaluator: user.cpp:9: error: expected initializer before 'L' user.cpp: In function 'int main()': user.cpp:36: warning: converting to non-pointer type 'char' from NULL user.cpp:46: error: 'L' was not declared in this scope user.cpp:50: error: 'L' was not declared in this scope user.cpp:50: error: 'Aux' was not declared in this scope user.cpp:61: error: 'L' was not declared in this scope user.cpp:62: error: 'L' was not declared in this scope