#include#include using namespace std; int main() { XmlReader xmlReader("data.xml"); // Assuming data.xml is an XML file present in current directory while (xmlReader.Read()) { switch (xmlReader.NodeType()) { case XmlNodeType::Element: cout << "Element: " << xmlReader.Name() << endl; break; case XmlNodeType::Text: cout << "Text: " << xmlReader.Value() << endl; break; case XmlNodeType::EndElement: cout << "Element End: " << xmlReader.Name() << endl; break; } } return 0; }
#includeThis example reads an XML file ("data.xml") and validates the presence of a required attribute ("id") in an element ("book"). Package/library: XmlReader is a class that is usually included in XML parsing libraries in the C++ standard library or external libraries such as Boost.PropertyTree, RapidXML, TinyXML, or pugixml.#include using namespace std; int main() { XmlReader xmlReader("data.xml"); // Assuming data.xml is an XML file present in current directory while (xmlReader.Read()) { switch (xmlReader.NodeType()) { case XmlNodeType::Element: if (xmlReader.Name() == "book") { if (xmlReader.HasAttributes()) { if (!xmlReader.MoveToAttribute("id")) { cerr << "Error: Missing attribute 'id' in element 'book'.\n"; return 1; } string id = xmlReader.Value(); cout << "Book ID: " << id << endl; } else { cerr << "Error: Missing attribute(s) in element 'book'.\n"; return 1; } } break; } } return 0; }