[svn-r17238] Purpose: Fix bug and improve readability

Description:
    - Revised DataSet::write to pass in correct string buffer
    - Added member function DataSet::getInMemDataSize() to simplify
      getting the dataset's data size in memory.
    - Added private functions for reading fixed- and variable-length
      string data: p_read_fixed_len and p_read_variable_len.
    - Added tests to write/read array of strings to datasets.

Platforms tested:
    Linux/32 2.6 (jam)
    FreeBSD/64 6.3 (liberty)
    SunOS 5.10 (linew)

1 files changed, 8 insertions, 1 deletions

diff --git a/c++/src/H5DataSet.h b/c++/src/H5DataSet.h
index f26d775..3d9183d 100644
--- a/c++/src/H5DataSet.h
+++ b/c++/src/H5DataSet.h
@@ -49,7 +49,10 @@ class H5_DLLCPP DataSet : public H5Object, public AbstractDs {
 	void getSpaceStatus(H5D_space_status_t& status) const;
 
 	// Returns the amount of storage size required for this dataset.
-	hsize_t getStorageSize() const;
+	virtual hsize_t getStorageSize() const;
+
+	// Returns the in memory size of this attribute's data.
+	virtual size_t getInMemDataSize() const;
 
 	// Returns the number of bytes required to store VL data.
 	hsize_t getVlenBufSize( DataType& type, DataSpace& space ) const;
@@ -113,6 +116,10 @@ class H5_DLLCPP DataSet : public H5Object, public AbstractDs {
         // sub-types
 	virtual hid_t p_get_type() const;
 
+	// Reads variable or fixed len strings from this dataset.
+	void p_read_fixed_len(const hid_t mem_type_id, const hid_t mem_space_id, const hid_t file_space_id, const hid_t xfer_plist_id, H5std_string& strg) const;
+	void p_read_variable_len(const hid_t mem_type_id, const hid_t mem_space_id, const hid_t file_space_id, const hid_t xfer_plist_id, H5std_string& strg) const;
+
    protected:
         // Sets the dataset id.
         virtual void p_setId(const hid_t new_id);