Google ProtoBuf C++ Example

#include <iostream>

#include "people.pb.h"

int main(int argc, char *argv[])

{

    test::People pep;

    pep.set_name("heheda");

    pep.set_age(5);

    pep.set_steps(1304);

    std::string buff;

    pep.SerializeToString(&buff);

    test::People pep2;

    pep2.ParseFromString(buff);

    std::cout << pep2.name() << std::endl;

    std::cout << pep2.age() << std::endl;

    std::cout << pep2.steps() << std::endl;

    int data_len = pep.ByteSize();

    unsigned char data[1024] = "\0";

    pep.SerializeToArray(data, data_len);

    for(auto i = 0; i < data_len; i ++)

        printf("%02X ", data[i]);

    printf("\n");

    test::People pep3;

    pep3.ParseFromArray(data, data_len);

    std::cout << pep3.name() << std::endl;

    std::cout << pep3.age() << std::endl;

    std::cout << pep3.steps() << std::endl;

    return 0;

}