serialize/deserialize vector<string>

gistfile1.cpp

#include <iostream>
#include <vector>

using namespace std;


char* serialize(vector<string> &v, unsigned int *count) {
    unsigned int total_count = 0;

    for(int i = 0; i < v.size(); i++ ) {
        // cout << v[i]<< endl;
        total_count += v[i].length() + 1;
    }

    char *buffer = new char[total_count];

    int idx = 0;

    for(int i = 0; i < v.size(); i++ ) {
        string s = v[i];
        for (int j = 0; j < s.size(); j ++ ) {
            buffer[idx ++] = s[j];
        }
        buffer[idx ++] = 0;
    }

    *count  = total_count;

    return buffer;
}

void deserialize(vector<string> &restore,  char* buffer, int total_count) {
    for(int i = 0; i < total_count; i ++ ) {
        const char *begin = &buffer[i];
        int size = 0;
        while(buffer[i++]) {
            size += 1;
        }
        restore.push_back(string(begin, size));
    }
}

int main(int argc, char ** argv) {
    vector<string> v;
    v.push_back("aaa");
    v.push_back("bbb");

    unsigned int total_count = 0;
    char *buffer = serialize(v, &total_count);

    vector<string> restore;
    deserialize(restore, buffer, total_count);

    for(int i = 0; i < restore.size(); i++ ) {
        cout << restore[i]<< endl;
    }

}