msgpack/example/cpp03/class_intrusive.cpp

#include <string>
#include <iostream>
#include <iomanip>
#include <sstream>
#include <cassert>

#include <msgpack.hpp>


class my_class {
public:
    my_class() {} // When you want to convert from msgpack::object to my_class,
                  // my_class should be default constractible.
    my_class(std::string const& name, int age):name_(name), age_(age) {}

    friend bool operator==(my_class const& lhs, my_class const& rhs) {
        return lhs.name_ == rhs.name_ && lhs.age_ == rhs.age_;
    }

private:
    std::string name_;
    int age_;

public:
    MSGPACK_DEFINE(name_, age_);
};

void print(std::string const& buf) {
    for (std::string::const_iterator it = buf.begin(), end = buf.end();
         it != end;
         ++it) {
        std::cout
            << std::setw(2)
            << std::hex
            << std::setfill('0')
            << (static_cast<int>(*it) & 0xff)
            << ' ';
    }
    std::cout << std::endl;
}

int main() {
    my_class my("John Smith", 42);
    std::stringstream ss;
    msgpack::pack(ss, my);

    print(ss.str());

    msgpack::unpacked unp;
    msgpack::unpack(unp, ss.str().data(), ss.str().size());
    msgpack::object obj = unp.get();
    assert(obj.as<my_class>() == my);
}