C++第四章课后习题4-19

定义一个CPU类

#include <iostream>
using namespace std;
enum Core{
    Single,Dual,Quad
};
enum Words{
    Bits32,Bits64
};
enum HyperThread{
    Support,Notsupport
};
class CPU{
    public:
        CPU(long int frequense,Core type,Words length,HyperThread mode):
            frequense(frequense),CoreType(type),Wordlen(length),mode(mode){
            }
        void show();
    private:
        unsigned frequense:32;
        Core CoreType:3;
        Words Wordlen:2;
        HyperThread mode:2;
};
void CPU::show()
{
    cout<<"frequense"<<frequense<<endl;
    cout<<"core:";
    switch((unsigned) CoreType){
        case Single: cout<<"Single-core"<<endl;break;
        case Dual: cout<<"Dual-core"<<endl;break;
        case Quad: cout<<"Qual-core"<<endl;break;
    }
    cout<<"words:";
    switch((unsigned) Wordlen){
        case Bits32: cout<<"32bits len"<<endl;break;
        case Bits64: cout<<"64bits len"<<endl;break;
    }
    cout<<"Hyperthread:";
    switch((unsigned) mode){
        case Support: cout<<"support Hyper-Thread"<<endl;break;
        case Notsupport: cout<<"not support Hyper-Thread"<<endl;break;
    }
}
int main()
{
    CPU c(3000000000UL,Quad,Bits64,Support);
    cout<<"size of Class CPU:"<<sizeof(CPU)<<endl;
    c.show();
}