//declaration
int integer;
char *p;
//set location
integer = 0x30313233;
p = (char *)&integer
// check for conditions
if (*p=='0' && *(p+1)=='1' && *(p+2)=='2' && *(p+3)=='3')
cout << “BIG ENDIAN” << endl;
else if (*p=='3' && *(p+1) == '2' && *(p+3)=='0')
 cout << “LITTLE ENDIAN” << endl;
else
 cout << “ERROR”<< endl;