move some unique_ptr between containers

move.cpp

// human.hpp

#ifndef human_hpp
#define human_hpp

#include <stdio.h>
#include <string>
#include <iostream>

class human {
public:
    
    /* constructor & destructor */
    human(const std::string& _name);
    ~human();
    
    /* copy constructor and assignment */
    human(const human& h) = delete;
    human& operator=(const human& h) = delete;
    
    /* move constructor & assignment */
    human(human&& h);
    human& operator=(human&& h);
    
    /* accessors */
    std::string&           get_name();
    
    /* print out human */
    friend std::ostream& operator<<(std::ostream& os, human& h) {
        return os << "human " << h.name << " says hi"  << std::endl;
    }
    
private:
    std::string             name;

};

#endif /* human_hpp */


// human.cpp

#include "human.hpp"

/* constructor & destructor */
human::human(const std::string& _name) : name(_name) {
    std::cout << "human " << name << " being born at " << this << std::endl;
};

human::~human(){
    std::cout << "human " << name << " being killed at " << this << std::endl;
};

/* move constructor & assignment */
human::human(human&& h) = default;
human& human::operator=(human&& h) = default;

/* accessors */
std::string& human::get_name(){return name;};


// main.cpp
#include <iostream>
#include <memory>
#include <vector>
#include <algorithm>

#include "human.hpp"

using human_ptr = std::unique_ptr<human>;
using house = std::vector<human_ptr>;

int main() {
    
    house house1;
    house1.push_back(std::make_unique<human>("alice"));
    house1.push_back(std::make_unique<human>("bob"));
    house1.push_back(std::make_unique<human>("carol"));
    
    std::cout << "house1 has " << house1.size() << " humans" << std::endl;
    for(auto &h : house1){
        std::cout << *h;
    }
    
    house house2;
    std::string nameToMove("alice");
    auto it = std::find_if(house1.begin(),house1.end(),[nameToMove](const human_ptr& h){
        return nameToMove.compare(h->get_name())==0;
    });
    if(it!=house1.end()){
        std::cout << "found alice" << std::endl;
    }
    house2.push_back(std::move(*it));
    house1.erase(it);
    
    std::cout << "house1 has " << house1.size() << " humans" << std::endl;
    std::cout << "house2 has " << house2.size() << " humans" << std::endl;
    for(auto &h : house2){
        std::cout << *h;
    }
    
    return 0;
}