Compilare: user.cpp:70:28: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] char *sirh[3]={"+-","*/",""}; ^ user.cpp:70:28: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] user.cpp:70:28: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] user.cpp: In function ‘long long int eval(int)’: user.cpp:82:19: warning: unused variable ‘y’ [-Wunused-variable] long long r=0,y; ^ user.cpp: In function ‘long long int result(long long int, long long int, char)’: user.cpp:79:1: warning: control reaches end of non-void function [-Wreturn-type] } ^