[svn-r12795] Purpose: Fixing bug

Description:
    Wrappers of H5Rcreate had incorrect prototypes.

Solution:
    Added these overloaded functions for H5Rcreate wrapper to IdComponent:
        void reference(void* ref, const char* name, DataSpace& dataspace,
                        H5R_type_t ref_type = H5R_DATASET_REGION) const;
        void reference(void* ref, const char* name) const;
        void reference(void* ref, const H5std_string& name) const;

    Added these overloaded functions for H5Rdereference:
        void dereference(IdComponent& obj, void* ref);
        DataSet(IdComponent& obj, void* ref);
        Group(IdComponent& obj, void* ref);
        DataType(IdComponent& obj, void* ref);

    The incorrect wrappers will be removed after announcing.

Platform tested:
    Linux 2.4 (heping)
    AIX 5.1 (copper)
    SunOS 5.8 64-bit (sol)

1 files changed, 10 insertions, 8 deletions

diff --git a/c++/src/H5DataType.h b/c++/src/H5DataType.h
index 5e92edc..bb9b317 100644
--- a/c++/src/H5DataType.h
+++ b/c++/src/H5DataType.h
@@ -28,6 +28,9 @@ class H5_DLLCPP DataType : public H5Object {
 	// Copy constructor: makes a copy of the original object
 	DataType( const DataType& original );
 
+	// Creates a datatype by way of dereference.
+	DataType(IdComponent& obj, void* ref);
+
 	// Closes this datatype.
 	virtual void close();
 
@@ -90,16 +93,16 @@ class H5_DLLCPP DataType : public H5Object {
 	// Checks whether this datatype is a variable-length string.
 	bool isVariableStr() const;
 
-	// Creates a reference to a named Hdf5 object in this object.
-	void* Reference(const char* name) const;
-	void* Reference(const H5std_string& name) const;
-
-	// Creates a reference to a named Hdf5 object or to a dataset region
+	// Creates a reference to a named HDF5 object or to a dataset region
 	// in this object.
-	void* Reference(const char* name, DataSpace& dataspace, H5R_type_t ref_type = H5R_DATASET_REGION) const;
+	void* Reference(const char* name, DataSpace& dataspace, H5R_type_t ref_type = H5R_DATASET_REGION) const; // will be obsolete
+
+	// Creates a reference to a named HDF5 object in this object.
+	void* Reference(const char* name) const; // will be obsolete
+	void* Reference(const H5std_string& name) const; // will be obsolete
 
 	// Retrieves the type of object that an object reference points to.
-	H5G_obj_t getObjType(void *ref, H5R_type_t ref_type) const;
+	H5G_obj_t getObjType(void *ref, H5R_type_t ref_type = H5R_OBJECT) const;
 
 	// Retrieves a dataspace with the region pointed to selected.
 	DataSpace getRegion(void *ref, H5R_type_t ref_type = H5R_DATASET_REGION) const;
@@ -115,7 +118,6 @@ class H5_DLLCPP DataType : public H5Object {
 
 	// Destructor: properly terminates access to this datatype.
 	virtual ~DataType();
-
 };
 #ifndef H5_NO_NAMESPACE
 }