C++11新特性之tie、tuple的应用

作者: 负面情绪奶豆
来源: 51数据库
2021-11-04

//tuple
std::tuple<int, int, int, int, qstring> thorface::getuserinfotojudgeopendoor(qstring strusercode)
{
int iunpaidorderlist = 0;
int iunhandledorderlist = 0;
int istatus = 0;
int ibindface = 0;
qstring strusername = "";
    return std::make_tuple(iunpaidorderlist, iunhandledorderlist, istatus, ibindface, strusername);
}

//tie解析
                int iunpaidorderlist = 0;
                int iunhandledorderlist = 0;
                int istatus = -1;
                int ibindface = -1;
                qstring strusername = "";
                std::tie(iunpaidorderlist, iunhandledorderlist, istatus, ibindface, strusername) = getuserinfotojudgeopendoor(strname);

tuple是一个固定大小的不同类型值的集合，是泛化的std::pair。和c#中的tuple类似，但是比c#中的tuple强大得多。我们也可以把他当做一个通用的结构体来用，不需要创建结构体又获取结构体的特征，在某些情况下可以取代结构体使程序更简洁，直观。

推荐阅读