Compilare: user.cpp: In function ‘int expresie()’: user.cpp:15:15: warning: array subscript has type ‘char’ [-Wchar-subscripts] while (s[p] == '+' || s[p] == '-') ^ user.cpp:15:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] while (s[p] == '+' || s[p] == '-') ^ user.cpp:17:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (s[p] == '+') ^ user.cpp:22:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (s[p] == '-') ^ user.cpp: In function ‘int termen()’: user.cpp:36:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] while ( s[p]=='*'||s[p]=='/') ^ user.cpp:36:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] while ( s[p]=='*'||s[p]=='/') ^ user.cpp:38:17: warning: array subscript has type ‘char’ [-Wchar-subscripts] if ( s[p] == '*' ) ^ user.cpp: In function ‘int factor()’: user.cpp:55:14: warning: array subscript has type ‘char’ [-Wchar-subscripts] while(s[p] == '-') ^ user.cpp:60:11: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(s[p] == '(') ^ user.cpp:67:14: warning: array subscript has type ‘char’ [-Wchar-subscripts] while(s[p] >= '0' && s[p] <= '9') ^ user.cpp:67:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] while(s[p] >= '0' && s[p] <= '9') ^ user.cpp:69:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] val = val*10 + (s[p]-'0'); ^