练习21

#include
using namespace std;


enum Core { Single, Dual, Quad };
enum Words { Bit32, Bit64 };
enum HyperThread { Support, NotSupport };
class CPU {
public:
CPU(unsigned frequence, Core type, Words length, HyperThread mode)
: frequence (frequence), CoreType (type), WordLen (length), mode(mode) { }
void show();
private:
unsigned frequence: 32;
Core CoreType: 3;
Words WordLen: 2;
HyperThread mode: 2;
};


void CPU::show() {
cout << " Frequence:    " << frequence << endl;
cout << " Core:     ";
switch ((unsigned)CoreType) {
case Single:  cout << " Single-Core"; break;
case Dual: cout << " Dual-Core"; break;
case Quad: cout << " Quad-Core"; break;
}
cout << endl;
cout << " Words:     ";
switch ((unsigned)WordLen) {
case Bit32: cout << "32-bits len"; break;
case Bit64: cout << "64-bits len"; break;
}
cout << endl;
cout << " HyperThread:     ";
switch ((unsigned)mode) {
case Support: cout << "Support Hyper-Thread"; break;
case NotSupport: cout << "Not Support Hyper-Thread"; break;
}
cout << endl;
}


int main() {
CPU c(3000000000, Quad, Bit64,Support);
cout << "Size of Class CPU: " << sizeof(CPU) << endl;
c.show();
return 0;
}