fixbug

include/robot_xmlrpcpp/XmlRpcValue.h

@@ -112,6 +112,9 @@ namespace robot_xmlrpcpp {
     //! Check for the existence of a struct member by name.
     bool hasMember(const std::string& name) const;
 
+    //! If this value is a struct, returns pointer to its members; otherwise nullptr.
+    const ValueStruct *getStructMembers() const;
+
     //! Decode xml. Destroys any existing value.
     bool fromXml(std::string const& valueXml, int* offset);
 

src/XmlRpcValue.cpp

@@ -209,6 +209,13 @@ namespace robot_xmlrpcpp {
     return _type == TypeStruct && _value.asStruct->find(name) != _value.asStruct->end();
   }
 
+  const XmlRpcValue::ValueStruct *XmlRpcValue::getStructMembers() const
+  {
+    if (_type != TypeStruct)
+      return nullptr;
+    return _value.asStruct;
+  }
+
   // Set the value from xml. The chars at *offset into valueXml 
   // should be the start of a <value> tag. Destroys any existing value.
   bool XmlRpcValue::fromXml(std::string const& valueXml, int* offset)