Compilare: user.cpp: In function ‘int EvaluareTermen()’: user.cpp:39:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while ( i < e.length() && ( e[i] == '*' || e[i] == '/')) ^ user.cpp:47:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int EvaluareExpresie()’: user.cpp:53:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while ( i < e.length() && ( e[i] == '+' || e[i] == '-' ) ) ^