使用指向对象的向量进行提升(C ++ - linux)

时间:2012-01-04 15:01:51

标签: c++ linux serialization boost

我正在查看组织论文的代码。我有两个通过包含和指针互连的类(作者和论文)。我为这两个类定义了序列化,但是如果我丢弃有关另一个类的信息,我只能保存一个对象。对于对象序列化我是全新的,我觉得我已经走得很远了。

Author.h

...
#include <fstream>
#include <boost/archive/text_oarchive.hpp>
#include <boost/archive/text_iarchive.hpp>

class Paper;

class Author
{
    public:
        friend class Paper;

        Author( const std::string& last_name_in = "", 
        const std::string& first_name_in = "", 
        const std::string& middle_name_in = "" );
        ...

    private:
        friend class boost::serialization::access;
        template<class Archive>
        void serialize(Archive & ar, const unsigned int version)
        {
            ar & first_name;
            ar & last_name;
            ar & middle_name;
            ar & display_name;
            for (int ii = 0; ii < list_of_papers.size(); ii++)
                ar & list_of_papers[ii];
        }
        ... 
        std::string first_name;
        std::string last_name;
        std::string middle_name;
        std::string display_name;
        std::vector<const Paper*>   list_of_papers;
};

我在Paper.h中没有默认构造函数,因为它没有意义,我真的不知道如何使用它。 的 Paper.h

...
class Author;

class Paper
{
    public:
        friend class Author;
        Paper( const std::string& paper_title_in,
        const std::vector<Author*>& paper_authors_in );   
        ...

    private:
        friend class boost::serialization::access;
        template<class Archive>
        void serialize(Archive & ar, const unsigned int version)
        {
            ar & paper_title;
            for (int ii = 0; ii < paper_authors.size(); ii++)
                ar & paper_authors[ii];
        }

        std::string         paper_title;
        std::vector<Author*>    paper_authors;
};

TEST.CPP

int main()
{
    std::ofstream ofs("filename");
    {
        Author  author1("Doe", "John");
        Author  author2("Dude", "Jim", "J");
        std::vector<Author*> list_of_authors;
        list_of_authors.push_back(&author1);
        Paper   other_paper( "A Nice Paper", list_of_authors );
        list_of_authors.push_back(&author2);
        Paper   this_is_my_paper( "What a beautiful paper", list_of_authors );
        boost::archive::text_oarchive oa(ofs);
        oa << author1;
    }
    {
        Author  author_new;
        std::ifstream ifs("filename");
        boost::archive::text_iarchive ia(ifs);
        ia >> author_new;
    }

    return 0;
}

在Linux中,我用g ++编译:

g++ -o test -I /path/boost/ -L /path/boost/ -lboost_serialization test.cpp author.cpp paper.cpp

在上面提供的表单中,代码不会编译并给我一个巨大的信息。它会在我添加对象序列化之前编译,并且如果我删除'ar&amp; list_of_papers [II];”来自Author.h。

有人能看到我错过的东西吗?

1 个答案:

答案 0 :(得分:0)

ar & paper_authors;

应该直接工作,因为boost可以序列化对象的STL容器,前提是对象本身是可序列化的 cf:http://www.boost.org/doc/libs/1_35_0/libs/serialization/doc/tutorial.html#stl