CPM.cmake/examples/cereal/main.cpp

#define CATCH_CONFIG_MAIN

#include <cereal/cereal.hpp>
#include <cereal/archives/json.hpp>

#include <string>
#include <sstream>

struct player_data 
{
  int id{-1};
  std::string name{};
};

template<typename Archive>
void serialize(Archive& archive, player_data const &data)
{
  archive(
    cereal::make_nvp("id", data.id), 
    cereal::make_nvp("name", data.name)
  );
}

int main(int argc, char const *argv[])
{
  player_data player{3, "Gamer One"};
  std::ostringstream oss;
  cereal::JSONOutputArchive output(oss);
  output(cereal::make_nvp("player_data", player));

  std::cout << oss.str() << std::endl;

  return 0;
}