Compilare: user.cpp: In function ‘long int eval(char, int&)’: user.cpp:5:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] #define valuta(x) a[x][R] ^ user.cpp:106:11: note: in expansion of macro ‘valuta’ while(valuta(F) == '+' || valuta(F) == '-') ^ user.cpp:5:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] #define valuta(x) a[x][R] ^ user.cpp:106:31: note: in expansion of macro ‘valuta’ while(valuta(F) == '+' || valuta(F) == '-') ^ user.cpp:5:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] #define valuta(x) a[x][R] ^ user.cpp:108:13: note: in expansion of macro ‘valuta’ if (valuta(F) == '+') ^ user.cpp:5:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] #define valuta(x) a[x][R] ^ user.cpp:110:18: note: in expansion of macro ‘valuta’ else if (valuta(F) == '-') ^ user.cpp: In function ‘long int termen(char, int&)’: user.cpp:5:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] #define valuta(x) a[x][R] ^ user.cpp:119:12: note: in expansion of macro ‘valuta’ while (valuta(G) == '/' || valuta(G) == '*') ^ user.cpp:5:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] #define valuta(x) a[x][R] ^ user.cpp:119:32: note: in expansion of macro ‘valuta’ while (valuta(G) == '/' || valuta(G) == '*') ^ user.cpp:5:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] #define valuta(x) a[x][R] ^ user.cpp:121:13: note: in expansion of macro ‘valuta’ if (valuta(G) == '/') ^ user.cpp:5:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] #define valuta(x) a[x][R] ^ user.cpp:123:18: note: in expansion of macro ‘valuta’ else if (valuta(G) == '*') ^