简单c++序列化

看了几个序列化框架，都有这个那个瑕疵

1. boost 太大，不容易学

2. eternity 不支持非侵入式，必须在类里加序列化方法。并且不支持 map<int, vector<my_class>> 之类嵌套

3. s11n 太复杂，不支持二进制存储，导致文件比较大

所以尝试自己搞了下，目前做到以下功能

1. 非侵入式

2. 支持pod原生类型，如 int， double，指针

3. 支持stl容器

4. 二进制存储

例子：

[cpp]
#include <windows.h>
#include <iostream>
#include <fstream>
#include <map>
#include <vector>
#include <algorithm>

using namespace std;

#include "serialization.h"
#include "stl/vector.h"
#include "stl/map.h"
#include "stl/string.h"

struct packet {
    int x;
    string name;
};

typedef map<int, vector<packet>> vmap;

vmap m;

template <class Stream>
void serialize(Stream& stream, packet& p) {
    serialize(stream, p.x);
    serialize(stream, p.name);
}
template <class Stream>
void de_serialize(Stream& stream, packet& p) {
    de_serialize(stream, p.x);
    de_serialize(stream, p.name);
}

vector<packet*> vv;
int main() {

    packet* p1 = new packet;
    p1->x = 10; p1->name = "p1";
    packet* p2 = new packet;
    p2->x = 20; p2->name = "p2";
    vv.push_back(p1);
    vv.push_back(p2);

    ofstream ofss;
    ofss.open("pppppppppp.txt", ios::binary);
    serialize(cout, vv);
    ofss.close();

    vv.clear();
    ifstream ifss;
    ifss.open("pppppppppp.txt", ios::binary);
    de_serialize(ifss, vv);
    ifss.close();

    printf("vv.size=%d\n", vv.size());
    for_each(vv.begin(), vv.end(), [](packet* pp) {
        printf("x: %d, name:%s\n", pp->x, pp->name.c_str());
    });

    printf("================\n");

    packet p;
    p.x = 3; p.name = "name1";
    m[1].push_back(p);
    p.x = 4; p.name = "name2";
    m[2].push_back(p);

    ofstream ofs;
    ofs.open("zzzzzzzzzzzzzzzzzzzzzzz.txt", ios::binary);
    serialize(ofs, m);
    ofs.close();

    // ZeroMemory(&p, sizeof(p));
    m.clear();

    ifstream ifs;
    ifs.open("zzzzzzzzzzzzzzzzzzzzzzz.txt", ios::binary);
    de_serialize(ifs, m);
    ifs.close();

    printf("m.size = %d\n", m.size());

    for_each(m.begin(), m.end(), [](pair<int, vector<packet>> p) {
        printf("m[%d].size=%d\n", p.first, p.second.size());
        for_each(p.second.begin(), p.second.end(), [](packet p) {
            printf("x = %d, name=%s\n", p.x, p.name.c_str());
        });
    });

}

补充：软件开发 , C++ ,