boost :: serialize和std :: chrono :: system_clock :: time_point

Question

我正在尝试使用boost :: serialize序列化包含std :: chrono :: system_clock :: time_point的类。

template <class Archive> void serialize(Archive& ar, unsigned int version) {
    ar & timePoint_;
}

然而我收到错误：

错误1错误C2039：'serialize'：不是'std :: chrono :: time_point＆lt; _Clock＆gt;'的成员c：\ boost_1_54_0 \ boost \ serialization \ access.hpp 118

我该如何解决这个问题？

Answer 1

使用

boost::serialization::make_binary_object(void * t, size_t size);

这 boost/serialization/binary_object.hpp可以像这样使用：

std::chrono::system_clock::time_point tp;
ar & boost::serialization::make_binary_object(&tp, sizeof(tp));

Answer 2

我设法使用以下侵入函数（在具有timepoint_作为成员函数的类中）使其工作

template <class Archive> void serialize(Archive& ar, unsigned int version) {
    char * ptr = reinterpret_cast<char *>(&timePoint_);
    for( int i = 0; i < sizeof(timePoint_); ++i)
        ar & ptr[i];
    /*snip*/
}