Compilare: user.cpp: In constructor ‘nod::nod(long int, char)’: user.cpp:30:7: warning: ‘nod::val’ will be initialized after [-Wreorder] long val; ^ user.cpp:29:7: warning: ‘char nod::op’ [-Wreorder] char op; ^ user.cpp:31:2: warning: when initialized here [-Wreorder] nod(long _val=0,char _op=' '):val(_val),op(_op){}; ^ user.cpp: In function ‘int main()’: user.cpp:97:56: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(s[i-1]=='-' && i-2>=0 && s[i-2]=='(') postfix[p++]=s[i-1]; ^ user.cpp:98:15: warning: array subscript has type ‘char’ [-Wchar-subscripts] postfix[p++]=s[i]; ^ user.cpp:102:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] postfix[p++]=s[i]; ^ user.cpp:104:15: warning: array subscript has type ‘char’ [-Wchar-subscripts] postfix[p++]=' '; ^ user.cpp:111:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] postfix[p++]=stack.Top(); ^ user.cpp:112:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] postfix[p++]=' '; ^ user.cpp:127:17: warning: array subscript has type ‘char’ [-Wchar-subscripts] postfix[p++]=stack.Top(); ^ user.cpp:128:17: warning: array subscript has type ‘char’ [-Wchar-subscripts] postfix[p++]=' '; ^ user.cpp:135:38: warning: array subscript has type ‘char’ [-Wchar-subscripts] while(!stack.isEmpty()) {postfix[p++]=stack.Top();postfix[p++]=' ';stack.pop();} ^ user.cpp:135:63: warning: array subscript has type ‘char’ [-Wchar-subscripts] while(!stack.isEmpty()) {postfix[p++]=stack.Top();postfix[p++]=' ';stack.pop();} ^ user.cpp:136:11: warning: array subscript has type ‘char’ [-Wchar-subscripts] postfix[p]='\0'; ^ user.cpp:90:7: warning: unused variable ‘rez’ [-Wunused-variable] long rez=0,nr=0; ^ user.cpp: In function ‘long int calculus(long int, long int, char)’: user.cpp:62:1: warning: control reaches end of non-void function [-Wreturn-type] }