[serialization] Serializing array of POD or custom type
Hi everyone. I'm trying to work out how you serialize arrays using the boost serializer. Here's a simplified example: struct node_link { u32 node_A; u32 node_B; }; struct Node { node_link* m_node_links_array; int m_node_links_size; }; // non-intrusive serialization template<class Archive> void serialize(Archive & ar, node_link& link, const unsigned int version) { ar & link.node_A; ar & link.node_B; } template<class Archive> void serialize(Archive & ar, Node& node_data, const unsigned int version) { ar & boost::serialization::array<node_link>(node_data.m_node_links_array, node_data.m_node_links_size); ar & node_data.m_node_links_size; } This seems to work for serializing but I get an error on de-serialization. Can anyone tell me the correct way to do this? Thanks
2012/6/26 Kim Gadecki <gadecki@iinet.net.au>
Hi everyone.
I'm trying to work out how you serialize arrays using the boost serializer. Here's a simplified example:
struct node_link { u32 node_A; u32 node_B; };
struct Node { node_link* m_node_links_array; int m_node_links_size; };
// non-intrusive serialization template<class Archive> void serialize(Archive & ar, node_link& link, const unsigned int version) { ar & link.node_A; ar & link.node_B; }
template<class Archive> void serialize(Archive & ar, Node& node_data, const unsigned int version) { ar & boost::serialization::array<**node_link>(node_data.m_node_ **links_array, node_data.m_node_links_size); ar & node_data.m_node_links_size; }
I'm guessing: how is deserialization of an array supposed to work, if size is deserialized afterwords? Regards Kris
On 6/26/2012 3:56 PM, Krzysztof Czainski wrote:
2012/6/26 Kim Gadecki <gadecki@iinet.net.au <mailto:gadecki@iinet.net.au>>
Hi everyone.
I'm trying to work out how you serialize arrays using the boost serializer. Here's a simplified example:
struct node_link { u32 node_A; u32 node_B; };
struct Node { node_link* m_node_links_array; int m_node_links_size; };
// non-intrusive serialization template<class Archive> void serialize(Archive & ar, node_link& link, const unsigned int version) { ar & link.node_A; ar & link.node_B; }
template<class Archive> void serialize(Archive & ar, Node& node_data, const unsigned int version) { ar & boost::serialization::array<node_link>(node_data.m_node_links_array, node_data.m_node_links_size); ar & node_data.m_node_links_size; }
I'm guessing: how is deserialization of an array supposed to work, if size is deserialized afterwords?
Regards Kris
Right you are. It also looks like you need to manually allocate memory for the array: ar & node_data.m_node_links_size; node_data.m_node_links_array = new node_link[node_data.m_node_links_size]; ar & boost::serialization::array<node_link>(node_data.m_node_links_array, node_data.m_node_links_size); So I'll have to split save and load to take care of that. Thanks.
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Kim Gadecki -
Krzysztof Czainski