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POimplementing a copy constructor
 

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    <p>I have the following class definition and it needs a copy constructor so deep copies are made to copy the raw pointers. Can anybody advice on how to best do this?</p> <p>Using <a href="http://xerces.apache.org/xerces-c/apiDocs-3/index.html" rel="nofollow">xerces-c++</a> for XML</p> <pre><code>class XMLDocument { private: typedef std::vector&lt;XML::XMLNode&gt; v_nodes; public: XMLDocument::XMLDocument(); XMLDocument::XMLDocument(const XMLDocument&amp; copy); XMLDocument::~XMLDocument(); XMLDocument&amp; operator=(XMLDocument const&amp; rhs); void CreateDocument(const std::string&amp; docname); void AddChildNode(XMLNode&amp; node); void RemoveNode(XMLNode&amp; node); void AddNodeValue(XMLNode&amp; node, const std::string&amp; value); void AddNodeValue(XMLNode&amp; node, int value); void AddNodeValue(XMLNode&amp; node, double value); void AddNodeValue(XMLNode&amp; node, float value); std::string GetXMLAttributes(); std::string GetXMLAttribute(const std::string&amp; attrib); std::string GetXMLNodeText(XML::XMLNode&amp; node); std::string DumpToString(); XMLNode GetXPathNode(const std::string xpathXpression); XMLNode GetNode(const XMLNode &amp;currentnode); typedef v_nodes::iterator nodes_iterator; nodes_iterator begin() { nodes_iterator iter; iter = xmlnodes.begin(); return iter; } nodes_iterator end() { nodes_iterator iter; iter = xmlnodes.end(); return iter; } private: v_nodes xmlnodes; bool InitializeXML(); DOMImplementation* impl; //Abstract DOMDocument* document; //Abstract DOMElement* rootelement; //Abstract }; </code></pre> <p>The DOMDocument <strong>is created calling a function</strong> and <strong>so is</strong> the DOMElement. So I can't just call new on these pointers.</p> <p>Not sure if I just literally recreate all these object?</p> <p>Example:</p> <pre><code>document = impl-&gt;createDocument(0, "mydoc", 0); </code></pre> <p>Who's gone on a downvote rage and not given a reason???</p>
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    1. COYou should probably mention in your question that you're using this and not your own classes: http://xerces.apache.org/xerces-c/apiDocs-3/classDOMImplementation.html
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      1. USSteve M
    2. CODo the classes in question have a clone() interface of some sort? If not, you may be SOL if you want to copy the object hierarchy (meaning you'd have to do it manually, either by walking the nodes yourself or by serializing and deserializing the document somehow)
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      1. USJames McNellis
    3. CONo clone that I can see, and what does SOL mean?
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