o Several new APIs have been added to the SD and GR interfaces:
+ SDreset_maxopenfiles, SDget_maxopenfiles, SDget_numopenfiles:
For modifying and checking the maximum allowed number of files.
+ SDgetcompinfo, GRgetcompinfo: Gets compression information. These
functions replaced SDgetcompress and GRgetcompress.
+ SDgetfilename: Retrieves the name of the file, given its ID.
+ SDgetnamelen: Retrieves the length of an object's name, given its
o SZIP compression has been added for Fortran, and SZIP compression has
also been added to the GR interface.
o The problem has been fixed where corruption could occur when a
SDS had the same name as a dimension. However, be aware that:
+ It is impossible to recover the data that was already corrupted.
+ For existing data that has not been corrupted, the problem was
fixed for multi-dimensional SDSs only. If the SDS had only one
dimension, the results of subsequent accesses to the dimension
would still be unpredictable.
o SDS and Vgroup names are no longer limited to 64 characters.
o The maximum number of files that can be opened at the same time is
no longer limited to 32. In this release, if this limit is reached,
library will increase it to the system limit, minus 3 to account for
stdout, and stderr.
o A command-line option (-u) was added to ncdump to enable a user to
replace non-alphanumeric characters in SDS names with underscores, if
desired. The default behavior is to print what is actually in the
o New error codes were added to the HDF library. Please refer to the
RELEASE.txt file and other HDF4 documentation for more information.
o Several new platforms are supported: Mac Intel, FreeBSD 64-bit,
Solaris 10 Intel, Linux 2.6 and HP-UX 11.23 (32-bit, 64-bit).
o Several changes were made to the HDF configuration, including:
. The --enable-netcdf flag was introduced.
. The autotools versions were updated.
o Many bugs have been fixed in hrepack and hdiff.
Please refer to the RELEASE.txt file for a comprehensive list of
changes in this release.
Platforms that were tested with this release are:
AIX 5.3 (32-bit, 64-bit)
Free BSD 6.2 (32-bit, 64-bit)
HP-UX B.11.23 (32-bit, 64-bit)
IRIX 64 v6.5 (32-bit, 64 bit)
Linux 2.4, 2.6
Sun OS 5.8, 5.10 (32-bit, 64-bit)
Windows XP, Vista
Mac OS X Intel
For detailed information on platforms and compilers, please
refer to the RELEASE.txt file.
o hdfcomp fails on HPUX 11.23 for the 64-bit version of the library
o This release does not support VMS systems.
o N-Bit compression is not supported with Fortran APIs.
o Using both fill-value and compression at the same time on an SDS
does not work.
o When using PGI compilers, make sure that the JPEG library is also
with a PGI C compiler; linking with JPEG built with gcc causes JPEG
tests to fail. To bypass the problem:
x Set LIBS flag to $PGI_JPEG_INSTALL_DIR/lib/libjpeg.a
where $PGI_JPEG_INSTALL_DIR points to the installation
for the PGI-compiled JPEG library:
setenv LIBS $PGI_JPEG_INSTALL_DIR/lib/libjpeg.a
x Use the --with-jpeg=$PGI_JPEG_INSTALL_DIR configure flag to
configure with the PGI-compiled JPEG library:
This mailing list is for news regarding HDF.
To subscribe to this list, send a message to
To unsubscribe, send a message to [hidden email].