[svn-r1362]

Changes since 19990616
----------------------

./src/H5T.c
./src/H5Tconv.c
	All conversion functions take an extra argument called
	`stride' which is the number of bytes to advance the source
	and destination pointers after each element is converted. If
	the value is zero then the old behavior is preserved (source
	and destination values are packed). This feature was necessary
	to implement the compound datatype conversion optimizations
	and it causes a minor change to the API (application-defined
	type conversion functions take an extra size_t stride
	argument).

./src/H5Tconv.c
	An additional compound data type conversion function was added
	which is applied unless the destination type is larger than
	the source type. I'm measuring significant performance
	increases for certain operations:

	    Test Name    Struct-Conv    Noop-Conv
			 New(Old) MB/s  New(Old) MB/s
	    ----------   -------------  -------------
	    Reordering   2.062(0.3936)  54087(0.9047)
	    Subsetting   2.901(0.6581)  40192(1.1100)
	    Shrinking    1.976(0.3925)  33628(1.1500)
	    ----------   -------------  -------------

./test/dtypes.c
	Added various compound datatype conversion tests.

	Fixed return values from functions.

./src/H5T.c
	Conversion timers are updated only if H5T debugging is turned
	on a runtime (in addition to compile time). This allows the
	data type layer to be compiled with debugging support without
	having to pay a big runtime penalty if the debugging isn't
	actually used.

./src/H5A.c
./src/H5D.c
./src/H5Ofill.c
./src/H5P.c
./src/H5T.c
./src/H5Tconv.c
./src/H5Tpkg.h
./src/H5Tprivate.h
./src/H5Tpublic.h
	Added the stride argument to the H5T_convert() calls. The
	stride is always zero, which means that the source and
	destination data values are packed.

./configure.in
./configure			[REGENERATED]
	If API tracing is turned off then libhdf5.settings will say
	`no' instead of nothing.

./test/flush1.c
./test/flush2.c
	Added better error messages in a couple places.

1 files changed, 114 insertions, 102 deletions

diff --git a/src/H5Tpkg.h b/src/H5Tpkg.h
index 5bbbb69..d4b477e 100644
--- a/src/H5Tpkg.h
+++ b/src/H5Tpkg.h
@@ -209,309 +209,321 @@ __DLLVAR__ size_t	H5T_NATIVE_UINT_FAST64_ALIGN_g;
 
 /* Conversion functions */
 __DLL__ herr_t H5T_conv_noop(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
-			     size_t nelmts, void *buf, void *bkg);
+			     size_t nelmts, size_t stride, void *buf,
+			     void *bkg);
 
 __DLL__ herr_t H5T_conv_order(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
-			      size_t nelmts, void *_buf, void *bkg);
+			      size_t nelmts, size_t stride, void *_buf,
+			      void *bkg);
 __DLL__ herr_t H5T_conv_struct(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
-			       size_t nelmts, void *_buf, void *bkg);
+			       size_t nelmts, size_t stride, void *_buf,
+			       void *bkg);
+__DLL__ herr_t H5T_conv_struct_opt(hid_t src_id, hid_t dst_id,
+				   H5T_cdata_t *cdata, size_t nelmts,
+				   size_t stride, void *_buf, void *bkg);
 __DLL__ herr_t H5T_conv_enum(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
-			     size_t nelmts, void *buf, void *bkg);
+			     size_t nelmts, size_t stride, void *buf,
+			     void *bkg);
 __DLL__ herr_t H5T_conv_vlen(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
-			     size_t nelmts, void *buf, void *bkg);
+			     size_t nelmts, size_t stride, void *buf,
+			     void *bkg);
 __DLL__ herr_t H5T_conv_i_i(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
-			    size_t nelmts, void *_buf, void *bkg);
+			    size_t nelmts, size_t stride, void *_buf,
+			    void *bkg);
 __DLL__ herr_t H5T_conv_f_f(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
-			    size_t nelmts, void *_buf, void *bkg);
+			    size_t nelmts, size_t stride, void *_buf,
+			    void *bkg);
 __DLL__ herr_t H5T_conv_s_s(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
-			    size_t nelmts, void *_buf, void *bkg);
+			    size_t nelmts, size_t stride, void *_buf,
+			    void *bkg);
 __DLL__ herr_t H5T_conv_b_b(hid_t src_id, hid_t dst_id, H5T_cdata_t *cdata,
-			    size_t nelmts, void *_buf, void *bkg);
+			    size_t nelmts, size_t stride, void *_buf,
+			    void *bkg);
 
 __DLL__ herr_t H5T_conv_schar_uchar(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *buf, void *bkg);
+				    size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_uchar_schar(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *buf, void *bkg);
+				    size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_schar_short(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *buf, void *bkg);
+				    size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_schar_ushort(hid_t src_id, hid_t dst_id,
 				     H5T_cdata_t *cdata, size_t nelmts,
-				     void *buf, void *bkg);
+				     size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_uchar_short(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *buf, void *bkg);
+				    size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_uchar_ushort(hid_t src_id, hid_t dst_id,
 				     H5T_cdata_t *cdata, size_t nelmts,
-				     void *buf, void *bkg);
+				     size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_schar_int(hid_t src_id, hid_t dst_id,
 				  H5T_cdata_t *cdata, size_t nelmts,
-				  void *buf, void *bkg);
+				  size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_schar_uint(hid_t src_id, hid_t dst_id,
 				   H5T_cdata_t *cdata, size_t nelmts,
-				   void *buf, void *bkg);
+				   size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_uchar_int(hid_t src_id, hid_t dst_id,
 				  H5T_cdata_t *cdata, size_t nelmts,
-				  void *buf, void *bkg);
+				  size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_uchar_uint(hid_t src_id, hid_t dst_id,
 				   H5T_cdata_t *cdata, size_t nelmts,
-				   void *buf, void *bkg);
+				   size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_schar_long(hid_t src_id, hid_t dst_id,
 				   H5T_cdata_t *cdata, size_t nelmts,
-				   void *buf, void *bkg);
+				   size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_schar_ulong(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *buf, void *bkg);
+				    size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_uchar_long(hid_t src_id, hid_t dst_id,
 				   H5T_cdata_t *cdata, size_t nelmts,
-				   void *buf, void *bkg);
+				   size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_uchar_ulong(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *buf, void *bkg);
+				    size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_schar_llong(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *buf, void *bkg);
+				    size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_schar_ullong(hid_t src_id, hid_t dst_id,
 				     H5T_cdata_t *cdata, size_t nelmts,
-				     void *buf, void *bkg);
+				     size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_uchar_llong(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *buf, void *bkg);
+				    size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_uchar_ullong(hid_t src_id, hid_t dst_id,
 				     H5T_cdata_t *cdata, size_t nelmts,
-				     void *buf, void *bkg);
+				     size_t stride, void *buf, void *bkg);
 
 __DLL__ herr_t H5T_conv_short_schar(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *buf, void *bkg);
+				    size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_short_uchar(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *buf, void *bkg);
+				    size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_ushort_schar(hid_t src_id, hid_t dst_id,
 				     H5T_cdata_t *cdata, size_t nelmts,
-				     void *buf, void *bkg);
+				     size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_ushort_uchar(hid_t src_id, hid_t dst_id,
 				     H5T_cdata_t *cdata, size_t nelmts,
-				     void *buf, void *bkg);
+				     size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_short_ushort(hid_t src_id, hid_t dst_id,
 				     H5T_cdata_t *cdata, size_t nelmts,
-				     void *buf, void *bkg);
+				     size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_ushort_short(hid_t src_id, hid_t dst_id,
 				     H5T_cdata_t *cdata, size_t nelmts,
-				     void *buf, void *bkg);
+				     size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_short_int(hid_t src_id, hid_t dst_id,
 				  H5T_cdata_t *cdata, size_t nelmts,
-				  void *buf, void *bkg);
+				  size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_short_uint(hid_t src_id, hid_t dst_id,
 				   H5T_cdata_t *cdata, size_t nelmts,
-				   void *buf, void *bkg);
+				   size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_ushort_int(hid_t src_id, hid_t dst_id,
 				   H5T_cdata_t *cdata, size_t nelmts,
-				   void *buf, void *bkg);
+				   size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_ushort_uint(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *buf, void *bkg);
+				    size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_short_long(hid_t src_id, hid_t dst_id,
 				   H5T_cdata_t *cdata, size_t nelmts,
-				   void *buf, void *bkg);
+				   size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_short_ulong(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *buf, void *bkg);
+				    size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_ushort_long(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *buf, void *bkg);
+				    size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_ushort_ulong(hid_t src_id, hid_t dst_id,
 				     H5T_cdata_t *cdata, size_t nelmts,
-				     void *buf, void *bkg);
+				     size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_short_llong(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *buf, void *bkg);
+				    size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_short_ullong(hid_t src_id, hid_t dst_id,
 				     H5T_cdata_t *cdata, size_t nelmts,
-				     void *buf, void *bkg);
+				     size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_ushort_llong(hid_t src_id, hid_t dst_id,
 				     H5T_cdata_t *cdata, size_t nelmts,
-				     void *buf, void *bkg);
+				     size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_ushort_ullong(hid_t src_id, hid_t dst_id,
 				      H5T_cdata_t *cdata, size_t nelmts,
-				      void *buf, void *bkg);
+				      size_t stride, void *buf, void *bkg);
 
 __DLL__ herr_t H5T_conv_int_schar(hid_t src_id, hid_t dst_id,
 				  H5T_cdata_t *cdata, size_t nelmts,
-				  void *buf, void *bkg);
+				  size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_int_uchar(hid_t src_id, hid_t dst_id,
 				  H5T_cdata_t *cdata, size_t nelmts,
-				  void *buf, void *bkg);
+				  size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_uint_schar(hid_t src_id, hid_t dst_id,
 				   H5T_cdata_t *cdata, size_t nelmts,
-				   void *buf, void *bkg);
+				   size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_uint_uchar(hid_t src_id, hid_t dst_id,
 				   H5T_cdata_t *cdata, size_t nelmts,
-				   void *buf, void *bkg);
+				   size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_int_short(hid_t src_id, hid_t dst_id,
 				  H5T_cdata_t *cdata, size_t nelmts,
-				  void *buf, void *bkg);
+				  size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_int_ushort(hid_t src_id, hid_t dst_id,
 				   H5T_cdata_t *cdata, size_t nelmts,
-				   void *buf, void *bkg);
+				   size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_uint_short(hid_t src_id, hid_t dst_id,
 				   H5T_cdata_t *cdata, size_t nelmts,
-				   void *buf, void *bkg);
+				   size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_uint_ushort(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *buf, void *bkg);
+				    size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_int_uint(hid_t src_id, hid_t dst_id,
 				 H5T_cdata_t *cdata, size_t nelmts,
-				 void *buf, void *bkg);
+				 size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_uint_int(hid_t src_id, hid_t dst_id,
 				 H5T_cdata_t *cdata, size_t nelmts,
-				 void *buf, void *bkg);
+				 size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_int_long(hid_t src_id, hid_t dst_id,
 				 H5T_cdata_t *cdata, size_t nelmts,
-				 void *buf, void *bkg);
+				 size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_int_ulong(hid_t src_id, hid_t dst_id,
 				  H5T_cdata_t *cdata, size_t nelmts,
-				  void *buf, void *bkg);
+				  size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_uint_long(hid_t src_id, hid_t dst_id,
 				  H5T_cdata_t *cdata, size_t nelmts,
-				  void *buf, void *bkg);
+				  size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_uint_ulong(hid_t src_id, hid_t dst_id,
 				   H5T_cdata_t *cdata, size_t nelmts,
-				   void *buf, void *bkg);
+				   size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_int_llong(hid_t src_id, hid_t dst_id,
 				  H5T_cdata_t *cdata, size_t nelmts,
-				  void *buf, void *bkg);
+				  size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_int_ullong(hid_t src_id, hid_t dst_id,
 				   H5T_cdata_t *cdata, size_t nelmts,
-				   void *buf, void *bkg);
+				   size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_uint_llong(hid_t src_id, hid_t dst_id,
 				   H5T_cdata_t *cdata, size_t nelmts,
-				   void *buf, void *bkg);
+				   size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_uint_ullong(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *buf, void *bkg);
+				    size_t stride, void *buf, void *bkg);
 
 __DLL__ herr_t H5T_conv_long_schar(hid_t src_id, hid_t dst_id,
 				   H5T_cdata_t *cdata, size_t nelmts,
-				   void *buf, void *bkg);
+				   size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_long_uchar(hid_t src_id, hid_t dst_id,
 				   H5T_cdata_t *cdata, size_t nelmts,
-				   void *buf, void *bkg);
+				   size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_ulong_schar(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *buf, void *bkg);
+				    size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_ulong_uchar(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *buf, void *bkg);
+				    size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_long_short(hid_t src_id, hid_t dst_id,
 				   H5T_cdata_t *cdata, size_t nelmts,
-				   void *buf, void *bkg);
+				   size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_long_ushort(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *buf, void *bkg);
+				    size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_ulong_short(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *buf, void *bkg);
+				    size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_ulong_ushort(hid_t src_id, hid_t dst_id,
 				     H5T_cdata_t *cdata, size_t nelmts,
-				     void *buf, void *bkg);
+				     size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_long_int(hid_t src_id, hid_t dst_id,
 				 H5T_cdata_t *cdata, size_t nelmts,
-				 void *buf, void *bkg);
+				 size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_long_uint(hid_t src_id, hid_t dst_id,
 				  H5T_cdata_t *cdata, size_t nelmts,
-				  void *buf, void *bkg);
+				  size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_ulong_int(hid_t src_id, hid_t dst_id,
 				  H5T_cdata_t *cdata, size_t nelmts,
-				  void *buf, void *bkg);
+				  size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_ulong_uint(hid_t src_id, hid_t dst_id,
 				   H5T_cdata_t *cdata, size_t nelmts,
-				   void *buf, void *bkg);
+				   size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_long_ulong(hid_t src_id, hid_t dst_id,
 				   H5T_cdata_t *cdata, size_t nelmts,
-				   void *buf, void *bkg);
+				   size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_ulong_long(hid_t src_id, hid_t dst_id,
 				   H5T_cdata_t *cdata, size_t nelmts,
-				   void *buf, void *bkg);
+				   size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_long_llong(hid_t src_id, hid_t dst_id,
 				   H5T_cdata_t *cdata, size_t nelmts,
-				   void *buf, void *bkg);
+				   size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_long_ullong(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *buf, void *bkg);
+				    size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_ulong_llong(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *buf, void *bkg);
+				    size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_ulong_ullong(hid_t src_id, hid_t dst_id,
 				     H5T_cdata_t *cdata, size_t nelmts,
-				     void *buf, void *bkg);
+				     size_t stride, void *buf, void *bkg);
 
 __DLL__ herr_t H5T_conv_llong_schar(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *buf, void *bkg);
+				    size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_llong_uchar(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *buf, void *bkg);
+				    size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_ullong_schar(hid_t src_id, hid_t dst_id,
 				     H5T_cdata_t *cdata, size_t nelmts,
-				     void *buf, void *bkg);
+				     size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_ullong_uchar(hid_t src_id, hid_t dst_id,
 				     H5T_cdata_t *cdata, size_t nelmts,
-				     void *buf, void *bkg);
+				     size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_llong_short(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *buf, void *bkg);
+				    size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_llong_ushort(hid_t src_id, hid_t dst_id,
 				     H5T_cdata_t *cdata, size_t nelmts,
-				     void *buf, void *bkg);
+				     size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_ullong_short(hid_t src_id, hid_t dst_id,
 				     H5T_cdata_t *cdata, size_t nelmts,
-				     void *buf, void *bkg);
+				     size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_ullong_ushort(hid_t src_id, hid_t dst_id,
 				      H5T_cdata_t *cdata, size_t nelmts,
-				      void *buf, void *bkg);
+				      size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_llong_int(hid_t src_id, hid_t dst_id,
 				  H5T_cdata_t *cdata, size_t nelmts,
-				  void *buf, void *bkg);
+				  size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_llong_uint(hid_t src_id, hid_t dst_id,
 				   H5T_cdata_t *cdata, size_t nelmts,
-				   void *buf, void *bkg);
+				   size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_ullong_int(hid_t src_id, hid_t dst_id,
 				   H5T_cdata_t *cdata, size_t nelmts,
-				   void *buf, void *bkg);
+				   size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_ullong_uint(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *buf, void *bkg);
+				    size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_llong_long(hid_t src_id, hid_t dst_id,
 				   H5T_cdata_t *cdata, size_t nelmts,
-				   void *buf, void *bkg);
+				   size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_llong_ulong(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *buf, void *bkg);
+				    size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_ullong_long(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *buf, void *bkg);
+				    size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_ullong_ulong(hid_t src_id, hid_t dst_id,
 				     H5T_cdata_t *cdata, size_t nelmts,
-				     void *buf, void *bkg);
+				     size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_llong_ullong(hid_t src_id, hid_t dst_id,
 				     H5T_cdata_t *cdata, size_t nelmts,
-				     void *buf, void *bkg);
+				     size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_ullong_llong(hid_t src_id, hid_t dst_id,
 				     H5T_cdata_t *cdata, size_t nelmts,
-				     void *buf, void *bkg);
+				     size_t stride, void *buf, void *bkg);
 
 __DLL__ herr_t H5T_conv_float_double(hid_t src_id, hid_t dst_id,
 				     H5T_cdata_t *cdata, size_t nelmts,
-				     void *buf, void *bkg);
+				     size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_double_float(hid_t src_id, hid_t dst_id,
 				     H5T_cdata_t *cdata, size_t nelmts,
-				     void *buf, void *bkg);
+				     size_t stride, void *buf, void *bkg);
 __DLL__ herr_t H5T_conv_i32le_f64le(hid_t src_id, hid_t dst_id,
 				    H5T_cdata_t *cdata, size_t nelmts,
-				    void *_buf, void *bkg);
+				    size_t stride, void *_buf, void *bkg);
 
 /* Bit twiddling functions */
 __DLL__ void H5T_bit_copy(uint8_t *dst, size_t dst_offset, const uint8_t *src,