A constructor other than the standard is required for this structure.

Question

I have the following structin C ++, and I was wondering if I need to define a constructor different from it when I use it as follows:boost::shared_ptr<node> p_node = boost:shared_ptr<node>();

struct node
{
    std::string name;
    std::map<std::string, std::vector<variant> > values; // it is possible that nodes contain as a value, key/value pairs so we need a map

    NodeType type;  //Enum

    typedef struct attrib
    {
        std::string key;
        variant value;  //Boost::variant
    };

    std::vector<attrib> attributes;

    boost::shared_ptr<node> childnode;
};

Answer 1

"this POD needs a custom constructor" ... what is a POD? POD does not contain complex objects such as lines and maps. POD means plain old data like paired and char arrays.

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Answer 2

, POD.

, ctor , undefined . , , , , boost::shared_ptr<node> p_node = boost:shared_ptr<node>(); , NULL ptr, boost::shared_ptr<node> p_node;

Answer 3

1-) ( 0 1 n) , ++ .

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Node * x = new Node(); , [Read First Line Again].

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