boost bimap中对象的反向查询（需要override>方法）

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/river472242652/article/details/82456463

核心点：override >

直接上demo
工具类Logger可以直接用cout进行代替，这里使用的是封装后的的spdlog库

#include <boost/bimap.hpp>

struct User {
    User() {}
    User(std::string name,uint32_t ids,std::string psw):username(name),id(ids),password(psw){}
    std::string  username;
    uint32_t id;
    std::string password;
    bool operator < (const User& other) const {
        if (username > other.username) {
            return true;
        }
        if (username > other.username) {
            return false;
        }

        return false;
    }
};

void main() {
    typedef std::string string;
    typedef boost::bimap<string, User> bimap;
    LOGGER logger = ConsoleUtils::get_mutable_instance().getConsoleLogger("main");
    bimap users;
    User user1(string("lkj1"), 21, string("lkj21"));
    User user2(string("lkj2"), 22, string("lkj22"));
    User user3(string("lkj3"), 23, string("lkj23"));
    User user4(string("lkj4"), 24, string("lkj24"));
    users.insert(bimap::value_type("zhang1", user1));
    users.insert(bimap::value_type("lkj1", user2));
    users.insert(bimap::value_type("lkj2", user3));
    users.insert(bimap::value_type("lkj3", user4));
    //bimap::left_map::iterator it=users.left.find("lkj3");
    //logger->info("{},{},{}",it->second.id,it->second.password,it->second.username);
    User usersearch;
    usersearch.username = "lkj1";
    bimap::right_map::iterator it = users.right.find(usersearch);
    logger->info("{},{},{}",it->first.id,it->first.password,it->first.username);

    system("pause");
}