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Add preliminary support for generic serialization #160

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Add preliminary support for generic serialization #160

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3e071dd
Add preliminary support for generic serialization
sdebionne Jun 4, 2019
0ed8577
Re-implement has_serialize trait in pure C++03 and move it to the ser…
sdebionne Jul 8, 2019
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32 changes: 30 additions & 2 deletions include/boost/serialization/serialization.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,7 @@
#endif

#include <boost/config.hpp>
#include <boost/core/enable_if.hpp>
#include <boost/serialization/strong_typedef.hpp>

/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
Expand Down Expand Up @@ -60,9 +61,36 @@ namespace serialization {

BOOST_STRONG_TYPEDEF(unsigned int, version_type)

// default implementation - call the member function "serialize"
// Check whether Type has a serialize() member function that accepts Archive
template <class Archive, class Type>
class has_serialize
{
// This type won't compile if the second template parameter isn't of type T.
template <typename T, T> struct type_check;

typedef char yes;
typedef long no;

template <typename T> struct serialize
{
typedef void (T::* fptr)(Archive&, const unsigned int);
};

template <typename T>
static yes check_has_serialize(
type_check< typename serialize<T>::fptr,
&T::serialize/*<Archive>*/ >*);
template <typename T>
static no check_has_serialize(...);

public:
static bool const value = (sizeof(check_has_serialize<Type>(0)) == sizeof(yes));
};

// default implementation - call the member function "serialize" if it exists,
// else removed from overload resolution.
template<class Archive, class T>
inline void serialize(
inline typename boost::enable_if<has_serialize<Archive, T>::value>::type serialize(
Archive & ar, T & t, const unsigned int file_version
){
access::serialize(ar, t, static_cast<unsigned int>(file_version));
Expand Down