cereal::base_class< Base > Struct Template Reference

Casts a derived class to its non-virtual base class in a way that safely supports abstract classes. More...

#include <cereal/types/base_class.hpp>

Public Member Functions
template<class Derived >
	base_class (Derived const *derived)

Public Attributes
Base *	base_ptr

Detailed Description

template<class Base>
struct cereal::base_class< Base >

Casts a derived class to its non-virtual base class in a way that safely supports abstract classes.

This should be used in cases when a derived type needs to serialize its base type. This is better than directly using static_cast, as it allows for serialization of pure virtual (abstract) base classes.

See Also

virtual_base_class

struct MyBase
{
  int x;

  virtual void foo() = 0;

  template <class Archive>
  void serialize( Archive & ar )
  {
    ar( x );
  }
};

struct MyDerived : public MyBase //<-- Note non-virtual inheritance
{
  int y;

  virtual void foo() {};

  template <class Archive>
  void serialize( Archive & ar )
  {
    ar( cereal::base_class<MyBase>(this) );
    ar( y );
  }
};

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The documentation for this struct was generated from the following file:

• include/cereal/types/base_class.hpp