Compilare: main.cpp: In member function 'void ExpresionEvaluator::buildPostfix(char*)': main.cpp:80:59: warning: array subscript has type 'char' [-Wchar-subscripts] while(!s.empty() && priorities[s.top()]>=priorities[*p] && s.top()!=*p) ^ main.cpp:80:75: warning: array subscript has type 'char' [-Wchar-subscripts] while(!s.empty() && priorities[s.top()]>=priorities[*p] && s.top()!=*p) ^ main.cpp: In function 'int getParams(char*, char*, int&)': main.cpp:177:30: warning: array subscript has type 'char' [-Wchar-subscripts] if(isVar(*p) && !f[*p]) ^ main.cpp:180:17: warning: array subscript has type 'char' [-Wchar-subscripts] f[*p]=1; ^ main.cpp: In member function 'int ExpresionEvaluator::getRes(int, int, char)': main.cpp:48:5: warning: control reaches end of non-void function [-Wreturn-type] } ^