C++读书笔记

#include <iostream>
int main()
{
        int i,j;
        std::cin>>i>>j;
        std::cout<<"i:"<<i<<std::endl;
        std::cout<<"j:"<<j<<std::endl;
        std::cout<<i<<j<<std::endl;
        return 0;
}

result:

~/cpp$ ./a.out
7
8
i:7
j:8
78

 

#include <iostream>
int main()
{
        int ival=1024;
        int &refVal=ival;
        std::cout<<&refVal<<ival<<refVal<<std::endl;
        refVal=5;
        std::cout<<&refVal<<ival<<refVal<<std::endl;
        double dval=3.14;
        const int &re=dval;
        std::cout<<re<<dval<<std::endl;
        dval=63.14;
        //re=3.14;非法
        std::cout<<re<<dval<<std::endl;
        return 0;
}

~/cpp$ ./a.out 
0xbf8c084010241024
0xbf8c084055
33.14
363.14