[svn-r323] Changes since 19980316

----------------------

./src/H5D.c
./src/H5T.c
./src/H5Tprivate.h
	Fixed a bug found by Kevin Powell regarding preservation of
	existing data during a read or write when the source and
	destination data types are the same.  Thanks Kevin!

	Fixed a couple warnings on Irix64.

./src/H5D.c
./src/H5Dprivate.h
./src/H5P.c
./src/H5Ppublic.c
./src/H5Tconv.c
./src/H5Tpublic.h
./test/cmpd_dset.c
	The application can now turn on/off the part of the I/O
	pipeline that deals with preservation of initialized data.
	The default is off since this will be the usual case and
	turning it on slows down the pipe.  Use H5Pset_preserve() and
	H5Pget_preserve().

./src/H5Fistore.c
	Added an optimization for reading/writing a single chunk of
	chunked storage.

./src/H5Odtype.c
./src/H5Oefl.c
./src/H5Olayout.c
./src/H5Oname.c
./src/H5Osdspace.c
./src/H5Ostab.c
	Fixed warnings reported by marek@iiasa.ac.at.  Thanks Marek.

./src/H5Odtype.c
	Fixed a failing assert() wrt reading compound types (not
	present in hdf5-1.0.0a).

1 files changed, 5 insertions, 4 deletions

diff --git a/src/H5Dprivate.h b/src/H5Dprivate.h
index f678ef7..14a471a 100644
--- a/src/H5Dprivate.h
+++ b/src/H5Dprivate.h
@@ -22,9 +22,9 @@
 #include <H5private.h>
 #include <H5Fprivate.h>         /*for the H5F_t type                         */
 #include <H5Gprivate.h>         /*symbol tables                              */
-#include <H5Tprivate.h>         /*for the H5T_t type                         */
-#include <H5Sprivate.h>         /*for the H5S_t type                         */
 #include <H5Oprivate.h>         /*object Headers                             */
+#include <H5Sprivate.h>         /*for the H5S_t type                         */
+#include <H5Tprivate.h>         /*for the H5T_t type                         */
 
 /*
  * Feature: Define H5D_DEBUG on the compiler command line if you want to
@@ -51,8 +51,9 @@ typedef struct H5D_create_t {
 /* Dataset transfer property list */
 typedef struct H5D_xfer_t {
     size_t		buf_size;	/*max temp buffer size		     */
-    void		*tconv;		/*type conversion buffer or null     */
-    void		*bkg;		/*background buffer or null	     */
+    void		*tconv_buf;	/*type conversion buffer or null     */
+    void		*bkg_buf;	/*background buffer or null	     */
+    H5T_bkg_t		need_bkg;	/*type of background buffer needed   */
 } H5D_xfer_t;
 
 typedef struct H5D_t H5D_t;