类型组合

#include <iostream>

struct antarctica_years_end
{
    int year;
};
int main()
{
    antarctica_years_end s01,s02,s03;
    s01.year=1998;
    antarctica_years_end* pa=&s02;
    pa->year=1999;
    antarctica_years_end trio[3];
    trio[0].year=2003;

    std::cout<<trio->year<<std::endl;
    const antarctica_years_end * arp[3]={&s01,&s02,&s03};
    std::cout<<arp[1]->year<<std::endl;

    const antarctica_years_end **ppa=arp;
    auto ppb=arp;//c++11 automatic type deduction
    //or else use const antarctica_years_end **ppb=arp;

    std::cout<<(*ppa)->year<<std::endl;
    std::cout<<(*(ppb+1))->year<<std::endl;
    return 0;
}

这段代码没有 using namespace std;这一句，在输出的时候使用std::cout。

codeblocks可能出现不适配C++11的情况，稍微设置一下就好了。