[Serialization] Serialize std::valarray of primitives

From: Meik (yuki_meik_at_[hidden])
Date: 2019-12-21 21:09:19

Hello,

I am new to C++ and thus new to Boost. My goal is to serialize a class 
containing multiple std::valarrays with primitives as content.

The code I wrote to achieve that(minimal example to reproduce):

 Â Â Â  #include <iostream>
 Â Â Â  #include <boost/archive/text_oarchive.hpp>

 Â Â Â  class A {
 Â Â Â Â Â Â Â  valarray<int> member_one;
 Â Â Â Â Â Â Â  valarray<float> member_two;
 Â Â Â Â Â Â Â  friend class boost::serialization::access;

 Â Â Â Â Â Â Â  template<class Archive>
 Â Â Â Â Â Â Â  void serialize(Archive &ar, const unsigned int version){
 Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â  ar & member_one;
 Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â  ar & member_two
 Â Â Â Â Â Â Â  }
 Â Â Â  }
 Â Â Â  int main(int argc, char* argv[]) {
 Â Â Â Â Â Â Â  boost::archive::text_oarchive oarchive(cout);
 Â Â Â Â Â Â Â  oarchive << p;
 Â Â Â Â Â Â Â  return 0;
 Â Â Â  }

When compiling this, the following error is given:

error: class std::valarray<int> has no member names serialize

I'd appreciate if you could let me know how to correctly serialize said 
std::valarray.

Kind regards,
Meik S.

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