Serialization of a std::map<std::string, ChLinkTSDA> leads to a segmentation fault

[paulotto]

Hi everyone,

I tried to serialize a class member of type std::map<std::string, ChLinkTSDA> with archive_out << CHNVP(map_);, but unfortunately, this led to a segmentation fault.

While looking for the cause of this, I came across another issue, which I wondered if was related to the first issue. If you want to do something like this

std::map<std::string, ChLinkTSDA> map_{
    {"l1", ChLinkTSDA()}
};

a 'bad_alloc' exception is thrown. I could eliminate this by adding the following line to the copy constructor of ChLinkTSDA:

m_jacobians = other.m_jacobians ? new SpringJacobians(*other.m_jacobians) : nullptr;

and change the copying of m_variables to:

m_variables = other.m_variables ? new ChVariablesGenericDiagonalMass(*other.m_variables) : nullptr;

But in the end, I couldn't solve the serialization problem. Maybe you have a solution.

Thanks and best regards,
Paul