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+// C++ informative line for the emacs editor: -*- C++ -*-
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by The HDF Group.                                               *
+ * Copyright by the Board of Trustees of the University of Illinois.         *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * This file is part of HDF5.  The full HDF5 copyright notice, including     *
+ * terms governing use, modification, and redistribution, is contained in    *
+ * the COPYING file, which can be found at the root of the source code       *
+ * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases.  *
+ * If you do not have access to either file, you may request a copy from     *
+ * help@hdfgroup.org.                                                        *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+#ifndef __H5Attribute_H
+#define __H5Attribute_H
+
+namespace H5 {
+
+/*! \class Attribute
+    \brief Class Attribute operates on HDF5 attributes.
+
+    An attribute has many characteristics similar to a dataset, thus both
+    Attribute and DataSet are derivatives of AbstractDs.  Attribute also
+    inherits from H5Location because an attribute can be used to specify
+    a location.
+*/
+//  Inheritance: multiple H5Location/AbstractDs -> IdComponent
+class H5_DLLCPP Attribute : public AbstractDs, public H5Location {
+   public:
+
+        // Copy constructor: makes a copy of an existing Attribute object.
+        Attribute(const Attribute& original);
+
+        // Default constructor
+        Attribute();
+
+        // Creates a copy of an existing attribute using the attribute id
+        Attribute(const hid_t attr_id);
+
+        // Closes this attribute.
+        virtual void close();
+
+        // Gets the name of this attribute.
+        ssize_t getName(char* attr_name, size_t buf_size = 0) const;
+        H5std_string getName(size_t len) const;
+        H5std_string getName() const;
+        ssize_t getName(H5std_string& attr_name, size_t len = 0) const;
+        // The overloaded function below is replaced by the one above and it
+        // is kept for backward compatibility purpose.
+        ssize_t getName(size_t buf_size, H5std_string& attr_name) const;
+
+        // Gets a copy of the dataspace for this attribute.
+        virtual DataSpace getSpace() const;
+
+        // Returns the amount of storage size required for this attribute.
+        virtual hsize_t getStorageSize() const;
+
+        // Returns the in memory size of this attribute's data.
+        virtual size_t getInMemDataSize() const;
+
+        // Reads data from this attribute.
+        void read(const DataType& mem_type, void *buf) const;
+        void read(const DataType& mem_type, H5std_string& strg) const;
+
+        // Writes data to this attribute.
+        void write(const DataType& mem_type, const void *buf) const;
+        void write(const DataType& mem_type, const H5std_string& strg) const;
+
+        ///\brief Returns this class name.
+        virtual H5std_string fromClass () const { return("Attribute"); }
+
+        // Gets the attribute id.
+        virtual hid_t getId() const;
+
+        // Destructor: properly terminates access to this attribute.
+        virtual ~Attribute();
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+   protected:
+        // Sets the attribute id.
+        virtual void p_setId(const hid_t new_id);
+#endif // DOXYGEN_SHOULD_SKIP_THIS
+
+   private:
+        hid_t id;        // HDF5 attribute id
+
+        // This function contains the common code that is used by
+        // getTypeClass and various API functions getXxxType
+        // defined in AbstractDs for generic datatype and specific
+        // sub-types
+        virtual hid_t p_get_type() const;
+
+        // Reads variable or fixed len strings from this attribute.
+        void p_read_variable_len(const DataType& mem_type, H5std_string& strg) const;
+        void p_read_fixed_len(const DataType& mem_type, H5std_string& strg) const;
+
+        // Friend function to set Attribute id.  For library use only.
+        friend void f_Attribute_setId(Attribute* attr, hid_t new_id);
+
+}; // end of Attribute
+} // namespace H5
+
+#endif // __H5Attribute_H