char is 1 bytes long
short int is 2 bytes long
int is 4 bytes long
long int is 4 bytes long
wchar_t is 4 bytes long


42 is 42;  0x42 is 66;  042 is 34


bool is 1 bytes long


boolean value of true 1
boolean value of false 0


float is 4 bytes long
double is 8 bytes long
long double is 12 bytes long


64 << 4 << 2 is 4096
64 << (4 << 2) is 4194304
z = 2; y = z++ << z++ << z++ is 32 z is 5
z = 2; y = ++z << ++z << ++z; is 2048 z is 5
cout <<8 << 2 << endl; prints 82
 cout <<i++ << i++ << i++ << endl; prints 210
cout << ++i << ++i << ++i << endl; prints 321