Eroare de compilare in evaluator: user.cpp: In function 'void back(int)': user.cpp:33: error: expected primary-expression before 'if' user.cpp:33: error: return-statement with a value, in function returning 'void' user.cpp:33: error: expected ';' before 'if' user.cpp: At global scope: user.cpp:40: error: expected unqualified-id before 'for' user.cpp:40: error: expected constructor, destructor, or type conversion before '<=' token user.cpp:40: error: expected constructor, destructor, or type conversion before '++' token user.cpp:48: error: expected declaration before '}' token