I am trying to serialize out the value of  OpenEXR's Half type values.

  I came across mention that custom types requires something like the following

```

namespace boost {
namespace serialization {

template<class Archive>
void serialize(Archive & ar, half & h, const unsigned int version)
{
    ar & boost::serialization::make_nvp("value", h);
}

} // namespace serialization
} // namespace boost
```

  The code compiles but when I run it, it segfaults.

  Is boost serializer a suitable for such use case ?

Cheers
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