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<html>
<head>
<title>HDF5 Software Changes</title>
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<table border=0 width=98%>
<tr><td valign=top align=left>
<a href="../index.html">HDF5 documents and links</a> <br>
<a href="../H5.intro.html">Introduction to HDF5</a> <br>
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<a href="Glossary.html">Glossary</a><br>
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<a href="http://www.hdfgroup.org/HDF5/doc1.6/UG/UG_frame.html">HDF5 User's Guide</a> <br>
<a href="../RM_H5Front.html">HDF5 Reference Manual</a> <br>
<a href="../ADGuide.html">HDF5 Application Developer's Guide</a> <br>
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<h1>HDF5 Software Changes from Release to Release</h1>
</center>
<!-- Document API CHANGES ONLY in this file. -->
This document is intended to assist application developers who must keep
an application synchronized with the HDF5 library or related software.
<a name="1610">
<h2>Release 1.6.10 (current release) versus Release 1.6.9,
November 2009</h2>
</a>
<dir>
This section lists interface-level changes and
other user-visible changes in behavior
in the transition from HDF5 Release 1.6.9 to Release 1.6.10.
</dir>
<dir>
<h3>Embedded HDF5 Library Settings Information</h3>
<dl>
<dd>Library settings are now embedded in an HDF5 executable
so that an “orphaned” executable can be queried
(via the Unix strings command, for example) to display the
library settings used to build it.
The embedded settings information is the same as that
normally found in the <code>libhdf5.settings</code> file.
<p>
This capability may be disabled with the use of the
<code>--disable-embedded-libinfo</code> flag during configure.
</dl>
<h3>Function with Changed Interface or Behavior</h3>
<dl>
<dd><a href="../RM_H5.html#Library-VersCheck">
<code>H5check_version</code></a> now displays
embedded library information (see above)
if a version mismatch is detected.
<p>
The function has also been changed to suppress the
warning message entirely if
<code>$HDF5_DISABLE_VERSION_CHECK</code> is set to
<code>2</code> or higher.
</dl>
</dir>
<dir>
<h3>New C++ Member Function</h3>
<dl>
<dd>New C++ member functions are provided to
determine a dataset’s or attribute’s
data size in memory:
<p>
<code>
size_t DataSet::getInMemDataSize() const</code>
<br>
<code>
size_t Attribute::getInMemDataSize() const</code>
<p>
The size in each case is in bytes.
</dl>
</dir>
<dir>
<h3>Tool with Changed Interface or Behavior</h3>
<dl>
<dd><a href="../Tools.html#Tools-Diff"><code>h5diff</code></a>
has one new option:
<p>
<code> --use-system-epsilon</code>
<p>
With this option, <code>h5diff</code> returns a difference
if and only if the difference between two data values
exceeds the system value for epsilon
(that is, if <code>|a-b| > <i>epsilon</i></code>).
<p>
The tool’s default behavior has also changed;
without this option, the tool now checks for strict equality.
<p>
This option has no short form.
<p>
</dl>
</dir>
<a name="169">
<h2>Release 1.6.9 versus Release 1.6.8,
May 2009</h2>
</a>
<dir>
This section lists API-level changes and changes in behavior
in the transition from HDF5 Release 1.6.8 to Release 1.6.9.
<h3>API Compatibility Macros</h3>
To facilitate writing applications that work with
both the HDF5 Release 1.6 series and the 1.8 series,
API compatibility macros analogous to those in 1.8
have been defined. These macros map directly to the
relevant functions and typedefs. Note that only the
1.6-style macros are supported in this branch.
<p>
Any program that is written using these macros
exculsively will work with both the 1.6 and 1.8
series HDF5 Libraries. The program will work without
having to use any special flags or definitions, as
long as the 1.8 library was compiled with support
for deprecated symbols, which is the default.
<p>
Following is a list of macros and the
symbols they alias:
<p>
<dl><dd><table width="90%">
<tr>
<td valign="top" align="left" width="20%">
<strong>Macro</strong></td>
<td valign="top" align="left">
<strong>Symbol</strong></td>
</tr>
<tr>
<td valign="top"><code>H5Acreate1</code></td>
<td valign="top"><code>H5Acreate</code></td>
</tr>
<tr>
<td valign="top"><code>H5Aiterate1</code></td>
<td valign="top"><code>H5Aiterate</code></td>
</tr>
<tr>
<td valign="top"><code>H5A_operator1_t</code></td>
<td valign="top"><code>H5A_operator_t</code></td>
</tr>
<tr>
<td valign="top"><code>H5Dcreate1</code></td>
<td valign="top"><code>H5Dcreate</code></td>
</tr>
<tr>
<td valign="top"><code>H5Dopen1</code></td>
<td valign="top"><code>H5Dopen</code></td>
</tr>
<tr>
<td valign="top"><code>H5Eclear1</code></td>
<td valign="top"><code>H5Eclear</code></td>
</tr>
<tr>
<td valign="top"><code>H5Eget_auto1</code></td>
<td valign="top"><code>H5Eget_auto</code></td>
</tr>
<tr>
<td valign="top"><code>H5Eprint1</code></td>
<td valign="top"><code>H5Eprint</code></td>
</tr>
<tr>
<td valign="top"><code>H5Epush1</code></td>
<td valign="top"><code>H5Epush</code></td>
</tr>
<tr>
<td valign="top"><code>H5Eset_auto1</code></td>
<td valign="top"><code>H5Eset_auto</code></td>
</tr>
<tr>
<td valign="top"><code>H5Ewalk1</code></td>
<td valign="top"><code>H5Ewalk</code></td>
</tr>
<tr>
<td valign="top"><code>H5E_walk1_t</code></td>
<td valign="top"><code>H5E_walk_t</code></td>
</tr>
<tr>
<td valign="top"><code>H5E_error1_t</code></td>
<td valign="top"><code>H5E_error_t</code></td>
</tr>
<tr>
<td valign="top"><code>H5Gcreate1</code></td>
<td valign="top"><code>H5Gcreate</code></td>
</tr>
<tr>
<td valign="top"><code>H5Gopen1</code></td>
<td valign="top"><code>H5Gopen</code></td>
</tr>
<tr>
<td valign="top"><code>H5Pget_filter1</code></td>
<td valign="top"><code>H5Pget_filter</code></td>
</tr>
<tr>
<td valign="top"><code>H5Pget_filter_by_id1</code></td>
<td valign="top"><code>H5Pget_filter_by_id</code></td>
</tr>
<tr>
<td valign="top"><code>H5Pinsert1</code></td>
<td valign="top"><code>H5Pinsert</code></td>
</tr>
<tr>
<td valign="top"><code>H5Pregister1</code></td>
<td valign="top"><code>H5Pregister</code></td>
</tr>
<tr>
<td valign="top"><code>H5Rget_obj_type1</code></td>
<td valign="top"><code>H5Rget_obj_type</code></td>
</tr>
<tr>
<td valign="top"><code>H5Tarray_create1</code></td>
<td valign="top"><code>H5Tarray_create</code></td>
</tr>
<tr>
<td valign="top"><code>H5Tcommit1</code></td>
<td valign="top"><code>H5Tcommit</code></td>
</tr>
<tr>
<td valign="top"><code>H5Tget_array_dims1</code></td>
<td valign="top"><code>H5Tget_array_dims</code></td>
</tr>
<tr>
<td valign="top"><code>H5Topen1</code></td>
<td valign="top"><code>H5Topen</code></td>
</tr>
<tr>
<td valign="top"><code>H5E_auto1_t</code></td>
<td valign="top"><code>H5E_auto_t</code></td>
</tr>
<tr>
<td valign="top"><code>H5Z_class1_t</code></td>
<td valign="top"><code>H5Z_class_t</code></td>
</tr>
</code>
</table></dl>
<p>
Note that for the 1.6 series, the numbered symbols are macros,
while in the 1.8 series, the non-numbered symbols are
macros. This was done because there is no need to
switch between different API versions in the 1.6 series.
<p>
<code>H5Z_class1_t</code> was introduced in Release 1.6.9 while all the
others were introduced in Release 1.6.8. For more information see
<cite><a href="http://www.hdfgroup.org/HDF5/doc/RM/APICompatMacros.html">API
Compatibility Macros</a></cite>, an HDF5 Release 1.8-series document.
<p>
</dir>
<dir>
<h3>Tools with Changed Interface or Behavior</h3>
<dl>
<dt><a href="../Tools.html#Tools-Diff"><code>h5diff</code></a>
<dd>The default behavior of <code>h5diff</code> is now
to detect and compare NaNs.
Use the <code>-N</code> or <code>--nan</code>
option (below) to turn this behavior off and
avoid the performance penalty that NaN detection
and comparison entalis.
(NaN detection and comparison became the default in
in HDF5 Release 1.6.8.)
<p>
<dd>This tool has two new options:
<p>
<code>-c</code>, <code>--compare</code>
<code> </code>
Lists objects that are not comparable.
<p>
<code>-N</code>, <code>--nan</code>
<code> </code>
Avoids NaNs detection.
<p>
<dt><a href="../Tools.html#Tools-Dump"><code>h5dump</code></a>
<dd><code>h5dump</code> now correctly specifies an XML DTD
or a schema URL.
<p>
<dd><code>h5dump</code> binary output now defaults to
<code>NATIVE</code>.
<p>
<dd>The new <code>-b</code>, <code>--binary</code> option
can be used to specify alternate binary formats.
<p>
<dt><a href="../Tools.html#Tools-Repack"><code>h5repack</code></a>
<dd>When a user does not specify a chunk size,
<code>h5repack</code> now defines the default chunk size
to be the same same as the size of the hyperslab used
to read the chunks.
<p>
</dl>
</dir>
<!--
<dir>
<h3>Deprecated Functions</h3>
The following functions are deprecated as of this release:
<pre> <a href="../RM_H5P.html#Property-SetPreserve">H5Pset_preserve</a>
<a href="../RM_H5P.html#Property-GetPreserve">H5Pget_preserve</a> </pre>
<p>
The original role of these functions is now
part of the core HDF5 Library functionality.
<p>
<h3>Changed File Installation</h3>
The file <code>libhdf5_fortran.settings</code> is no longer
installed with the HDF5 Library;
the original content of that file is now included in
<code>libhdf5.settings</code>.
</dir>
-->
<a name="168">
<h2>Release 1.6.8 versus Release 1.6.7,
November 2008</h2>
</a>
<dir>
This section lists API-level changes and changes in behavior
in the transition from HDF5 Release 1.6.7 to Release 1.6.8.
<h3>Functions with Changed Syntax</h3>
The following function syntaxes have changed;
the affected return values and parameter are noted as
<font color=red><u>underscored red text</u></font>.
<p>
<dl>
<dt><u>C function:</u>
<dt><a href="../RM_H5F.html#File-GetObjCount">
<code>H5Fget_obj_count</code></a>
<dd><code>
<font color=red><u>
ssize_t</u></font> H5Fget_obj_count(
<em>hid_t </em><code>file_id</code>,
<em>unsigned int</em> <code>types</code>
)
</code>
<p>
<dt><a href="../RM_H5F.html#File-GetObjIDs">
<code>H5Fget_obj_ids</code></a>
<dd><code>
<font color=red><u>
ssize_t</u></font> H5Fget_obj_ids(
<em>hid_t </em><code>file_id</code>,
<em>unsigned int</em> <code>types</code>,
<br>
<font color=red><u>
<em>size_t</em> <code>max_objs</code></u></font>,
<em>hid_t *</em><code>obj_id_list</code>
)
</code>
</dl>
<p>
</dir>
<dir>
<h3>Tools with Changed Interface or Behavior</h3>
<dl>
<dt><a href="../Tools.html#Tools-Repack"><code>h5repack</code></a>
and <a href="../Tools.html#Tools-Diff"><code>h5diff</code></a>
<dd>The standard command-line syntax of both tools
has been changed to parallel that of <code>h5dump</code>.
The new syntax of each is as follows:
<p>
<code>
h5repack [<i>OPTIONS</i>] <i>file1 file2</i>
</code>
<p>
<code>
h5diff [<i>OPTIONS</i>] <i>file1 file2</i>
[<i>object1</i> [<i>object2</i>]]
</code>
<p>
In each case,
the old syntax remains available (though undocumented)
to avoid breaking existing scripts.
<p>
</dl>
</dir>
<dir>
<dl>
<dt><a href="../Tools.html#Tools-Diff"><code>h5diff</code></a>
<dd><code>h5diff</code> now returns <code>1</code>
if the files differ in structure,
i.e., if the file graphs differ by any object.
<p>
The tool’s error return code has been changed
to <code>2</code>.
<p>
<dt><a href="../Tools.html#Tools-Repack"><code>h5repack</code></a>
<dd>The following new options control the addition of
user block data to an existing HDF5 file:
<dir>
<table>
<tr valign=top><td>
<code>-u <em>U</em></code>
<br>
<code>--ublock=<em>U</em></code>
</td><td> </td><td>
Specifies the name of the file containing the
user block data to be added.
</td></tr>
<tr valign=top><td>
<br>
<code>-b <em>B</em></code>
<br>
<code>--block=<em>B</em></code>
</td><td> </td><td>
<br>
Specifies the size of the block to be added.
</td></tr>
</table>
</dir>
<p>
<dd>The following new options set parameters
governing the tool’s use of
<code>H5Pset_alignment</code>:
<dir>
<table>
<tr valign=top><td>
<code>-t <em>T</em></code>
<br>
<code>--threshold=<em>T</em></code>
</td><td> </td><td>
Specifies the threshold value for
<code>H5Pset_alignment</code>.
</td></tr>
<tr valign=top><td>
<br>
<code>-a <em>A</em></code>
<br>
<code>--alignment=<em>A</em></code>
</td><td> </td><td>
<br>
Specifies the alignment value for
<code>H5Pset_alignment</code>.
</td></tr>
</table>
</dir>
<p>
<dd><code>h5repack</code> now supports multiple instances of
the <code>'-f'</code> or <code>'--filter'</code> option,
allowing the use of multiple I/O filters with an object.
<p>
<dd>With no change in the command-line syntax,
<code>h5repack</code> now retains an existing userblock
when repacking an HDF5 file.
<p>
<dt><a href="../Tools.html#Tools-Import"><code>h5import</code></a>
<dd>The floating point format flag <code>TEXTFPE</code>,
for scientific notation, has been deprecated.
The flag <code>TEXTFP</code>, which accepts
scientific notation, should be used instead.
<p>
<dd><code>h5import</code> now imports string data
with the <code>STR</code> keyword
in the <code>INPUT-CLASS</code> configuration field.
<p>
<dt><a href="../Tools.html#Tools-Dump"><code>h5dump</code></a>
<dd>The new <code>'-m <i>T</i>'</code> or
<code>'--format <i>T</i>'</code> option
enables a user-defined formatting string
for printing floating-point numbers.
<p>
<dd>With no change in the command-line syntax,
<code>h5dump</code> now prints a compression ratio
when compression filters are in use.
</dl>
</dir>
<dir>
<h3>Deprecated Functions</h3>
The following functions are deprecated as of this release:
<pre> <a href="../RM_H5P.html#Property-SetPreserve">H5Pset_preserve</a>
<a href="../RM_H5P.html#Property-GetPreserve">H5Pget_preserve</a> </pre>
<p>
The original role of these functions is now
part of the core HDF5 Library functionality.
<p>
<h3>Changed File Installation</h3>
The file <code>libhdf5_fortran.settings</code> is no longer
installed with the HDF5 Library;
the original content of that file is now included in
<code>libhdf5.settings</code>.
</dir>
<a name="167">
<h2>Release 1.6.7 versus Release 1.6.6</h2>
</a>
<dir>
This section lists the API-level changes that have been made in the
transition from the HDF5 Release 1.6.6 to Release 1.6.7.
As this is primarily a bug-fix release,
the only interface changes are one changed function signature and
the changes related to the removal of the
stream I/O driver, as outlined below.
<h3>Function with Changed Syntax</h3>
The following function syntax has changed;
the affected parameter is noted in <font color=red>red</font>.
<p>
<dl>
<dt><u>C function:</u>
<dt><code>H5Sselect_elements</code>
<dd><code>
herr_t H5Sselect_elements(
<em>hid_t </em><code>space_id</code>,
<em>H5S_seloper_t</em> <code>op</code>,
<br>
<em>size_t</em> <code>num_elements</code>,
<font color=red>
<em>const hsize_t *</em><code>coord</code>
</font>
)
</code>
</dl>
<p>
<cite>(This syntax change was listed on 10 September 2008,
several months after Release 1.6.7.)</cite>
<h3>Stream I/O Driver Removed</h3>
The stream I/O driver, <code>H5FD_STREAM</code>, has been
removd from and is no longer distributed with the HDF5 Library.
The following APIs have therefore been removed from this release.
<br>
<code>H5Pset_fapl_stream</code>
<br>
<code>H5Pget_fapl_stream</code>
<br>
The stream driver <small>ENUM</small> value <code>H5FD_STREAM</code>
has also been removed.
<p>
While the stream driver is no longer distributed by The HDF Group,
it will be made available as a source code distribution from
<a href="http://hdf5-addons.origo.ethz.ch/">
<code>http://hdf5-addons.origo.ethz.ch/</code></a>.
An integration mechanism will be developed and
instructions for using the driver with HDF5
will be posted on that site.
</dir>
<a name="166">
<h2>Release 1.6.6 versus Release 1.6.5</h2>
</a>
<dir>
This section lists the API-level changes that have been made in the
transition from the HDF5 Release 1.6.5 to Release 1.6.6.
<p>
Release 1.6.6 is primarily a bug-fix release and includes
no changes in the syntax or intended behavior of
the library’s public interfaces.
There are, however, two changes in tool interfaces.
<!--
<h3>New Functions and Tools</h3>
<dl>
<dt>C functions:
<dd>None.
<dd>The following C functions are new for Release 1.6.6 and
are documented in the
<a href="../RM_H5Front.html"><cite>HDF5 Reference Manual</cite></a>.
<table border="0">
<tr>
<td align="left" valign="top"><code>FUNCTION NAME</code>
</td>
<td align="left" valign="top"><em>FUNCTION</em> <code>SYNTAX</code>
<br>
See <a href="../RM_H5[FUNCTION ENTRY URL]">entry</a>.</td>
</tr>
</table>
<dd>
<dt>Fortran subroutines:
<dd>None.
<dd>The following Fortran90 subroutines are new for Release 1.6.6
and are documented in the
<a href="../RM_H5Front.html"><cite>HDF5 Reference Manual</cite></a>.
<table border="0">
<tr>
<td align="left" valign="top">Corresponding to the
new C functions listed above:<br>
<code>FORTRAN_SUBROUTINE_NAME_f</code><br>
</td>
<td align="left" valign="top">
</td>
</tr>
</table>
<dd>
<dt>Tools:
<dd>None.
<dd>The following tools are new for Release 1.6.6 and are
documented on the <a href="../Tools.html">Tools page</a> of the
<a href="../RM_H5Front.html"><cite>HDF5 Reference Manual</cite></a>.
<dd><code>h5repack</code> description...
<dd><code>h5repack</code> description...
</dl>
<h3>Deleted Functions</h3>
None.
The following functions are deprecated in HDF5 Release X.X.x.
A backward compatibility mode is provided in this release,
enabling these functions and other Release 1.4.x compatibility
features, but is available only when the HDF5 library is
configured with the flag <code>H5_WANT_H5_V1_4_COMPAT</code>.
The backward compatibility mode is not enabled in the
binaries distributed by NCSA.
<dir>
<table border=0>
<tr valign="top" align="left"><td>
</td><td>
<pre>
<code>function</code>
</pre>
</td><td>
</td><td>
<pre>
<code>function</code>
</pre>
</td><td>
</td><td>
<pre>
</pre>
</td></tr>
</table>
</dir>
<p>
The above functions will eventually be removed from the HDF5
distribution and from the <cite>HDF5 Reference Manual</cite>.
<h3>Functions with Changed Syntax</h3>
None.
The following functions have changed as noted.
<dl>
<dt>C functions:
<dt><code>H5function?</code>
<dd>Change....
<dd>
<dt>Fortran90 subroutines:
<dt><code>h5subroutine_f?</code>
<dd>Change...
</dl>
<h3>Constants with Changed Values</h3>
None.
-->
<h3>Tools with Changed Options and/or Behavior</h3>
<dl>
<dt>The following tools have changed in this release;
these changes are documented on the
<a href="../Tools.html">Tools page</a> of the
<a href="../RM_H5Front.html"><cite>HDF5 Reference Manual</cite></a>.
<br>
<dd><code>h5repack</code>:
<br>
A new <code>-n</code> option allows the user to specify
that a new file created by <code>h5repack</code> will use
native datatypes.
The default behavior is to use the original file datatypes.
<table>
<tr valign=top>
<td> </td>
<td><code>-n</code> </td>
<td>Use native HDF5 datatypes when repacking.
<br>
(Default behavior is to use the original
file datatypes.)
</td></tr>
</table>
<em>Note that the default behavior of this tool
has changed;
prior to Release 1.6.6, </em><code>h5repack</code>
<em> generated files only with native datatypes.</em>
<p>
<dd><code>h5dump</code>:
<br>
This tool includes a new <code>-b</code> option
for binary output.
<table>
<tr valign=top>
<td> </td>
<td><code>-b <em>B</em></code> or
<br>
<code>--binary=<em>B</em> </code></td>
<td valign="top">Output dataset to a binary file
using the datatype specified by
<code><em>B</em></code>.
<br>
<code><em>B</em></code> must have one of the
following values:
<br>
<code>LE </code>
Little-endian
<br>
<code>BE </code>
Big-endian
<br>
<code>MEMORY </code>
Memory datatype
<br>
<code>FILE </code>
File datatype
<br>
Recommended usage is with the <code>-d</code> and
<code>-o</code> options.
</td>
</tr>
</table>
</dl>
</dl>
</dir>
<p>
<h2>Release 1.6.5 versus Release 1.6.4</h2>
<dir>
This section lists the API-level changes that have been made in the
transition from the HDF5 Release 1.6.4 to Release 1.6.5.
<h3>New Functions and Tools</h3>
<dl>
<dt>C functions and
<dt>Fortran subroutines:
<dd>HDF5 Release 1.6.5 is primarily a maintenance release,
focusing on bugfixes, optimization and portability;
there are no new C APIs or Fortran subroutines.
<!--
<dd>
<dd>The following C functions are new for Release 1.6.4 and
are documented in the
<a href="../RM_H5Front.html"><cite>HDF5 Reference Manual</cite></a>.
<table border="0">
<tr>
<td align="left" valign="top"><code>function</code>
</td>
<td align="left" valign="top">syntax<br>
See <a href="../RM_H5__.html#__">entry</a>.</td>
</tr>
</table>
-->
<dd>
<dt>High Level C APIs:
<dd>The High Level C APIs (HL), including the HDF5 Image,
HDF5 Table, and HDF5 Lite interfaces
(H5IM, H5TB, and H5LT, respectively),
have been distributed with the main HDF5 source code distribution
since Release 1.6.4.
A link to the HL documentation appears on the opening
page of the HDF5 document set or can be accessed directly at
<a href="http://hdf.ncsa.uiuc.edu/HDF5/hdf5_hl/doc/RM_hdf5hl.html">
<code>http://hdf.ncsa.uiuc.edu/HDF5/hdf5_hl/doc/RM_hdf5hl.html</code></a>
<dd>
<dt>C++ wrappers:
<dd><code>void PropList::copyProp(PropList& dest, const char* name) const</code>
<dd><code>void PropList::copyProp(PropList& dest, const string& name) const</code>
<dd><code>string CommonFG::getComment(const string& name) const</code>
<dd><code>void CommonFG::removeComment(const char* name) const</code>
<dd><code>void CommonFG::removeComment(const string& name) const</code>
<dd><code>hsize_t Attribute::getStorageSize() const</code>
<dd><code>void Attribute::close()</code>
<dd><code>void DataSet::close()</code>
<dd><code>void DataSpace::close()</code>
<dd><code>void DataType::close()</code>
<dd><code>void H5File::close()</code>
<dd><code>void Group::close()</code>
<dd><code>void PropList::close()</code>
<dd><code>H5T_order_t AtomType::getOrder() const</code>
<dd><code>void H5Object::renameAttr(const char* oldname, const char* newname) const</code>
<dd><code>void H5Object::renameAttr(const string& oldname, const string& newname) const</code>
<dd><code>string CommonFG::getObjnameByIdx(hsize_t idx) const</code>
<dd><code>ArrayType AbstractDs::getArrayType() const</code>
<dd><code>VarLenType AbstractDs::getVarLenType() const</code>
<dd><code>ArrayType CommonFG::openArrayType(const char* name) const</code>
<dd><code>ArrayType CommonFG::openArrayType(const string& name) const</code>
<dd><code>VarLenType CommonFG::openVarLenType(const char* name) const</code>
<dd><code>VarLenType CommonFG::openVarLenType(const string& name) const</code>
<dd><code>ArrayType CompType::getMemberArrayType(unsigned member_num) const</code>
<dd><code>VarLenType CompType::getMemberVarLenType(unsigned member_num) const</code>
<dd>
<!--
<dt>Tools:
<dd>Any?
-->
</dl>
<!--
<h3>Depricated and Deleted Functions</h3>
The following functions have been removed in this release.
-->
<!--
None.
-->
<!--
<dl>
<dt><u>C functions:</u>
<dt><code>H5function_name?</code>
<p>
<dt><u>Fortran90 subroutines:</u>
<dt><code>h5subroutine_f?</code>
<p>
<dt><u>C++ wrappers:</u>
<dt><code>C++_wrapper_name?</code>
</dl>
-->
<!--
The following functions are deprecated in this HDF5 release.
A backward compatibility mode is provided
enabling these functions and other Release 1.4.x compatibility
features, but is available only when the HDF5 library is
configured with the flag <code>H5_WANT_H5_V1_4_COMPAT</code>.
The backward compatibility mode is not enabled in the
binaries distributed by NCSA.
<dir>
<table border=0>
<tr valign="top" align="left"><td>
</td><td>
<pre>
<code>function</code>
</pre>
</td><td>
</td><td>
<pre>
<code>function</code>
</pre>
</td><td>
</td><td>
<pre>
</pre>
</td></tr>
</table>
</dir>
<p>
The above functions will eventually be removed from the HDF5
distribution and from the <cite>HDF5 Reference Manual</cite>.
-->
<h3>Functions with New or Changed Symbols or Fixed Values</h3>
Symbols and preset values associated with the following functions
have changed as noted.
<p>
<dl>
<dt><u>C functions:</u>
<dt><code>H5Fget_obj_count</code>
<dd><code>H5F_OBJ_LOCAL</code> has been
added as a qualifier on the types of objects to be counted.
<code>H5F_OBJ_LOCAL</code> restricts the search
to objects opened through current file identifier.
<dt><code>H5Tset_tag</code>
<dd>The <code>H5T_OPAQUE_TAG_MAX</code>
macro constant,
specifying the maximum size of an opaque datatype tag,
was added in <code>H5Tpublic.h</code>.
<!--
<dt><code>H5function_name?</code>
<dd>Change...
-->
<!--
<p>
<dt><u>Fortran90 subroutines:</u>
<dt><code>h5subroutine_f?</code>
<dd>Change...
<p>
<dt><u>C++ wrappers:</u>
<dt><code>C++_wrapper_name?</code>
<dd>Change...
-->
</dl>
<h3>Functions with Changed Syntax</h3>
The following functions have changed as noted.
Changed items are indicated in <font color="red">red</font>.
<p>
<!--
<dl>
<dt><u>C functions:</u>
<dt><code>H5function_name?</code>
<dd>Change...
<p>
<dt><u>Fortran90 subroutines:</u>
<dt><code>h5subroutine_f?</code>
<dd>Change...
-->
<p>
<dt><u>C++ wrappers:</u>
<!--
<dt><code>C++_wrapper_name?</code>
<dd>Change....
-->
<dt>In all cases below, a parameter datatype has changed from
<code>int</code> to <code>unsigned</code>.
<dd><code>string CompType::getMemberName(
<font color=red>unsigned</font> member_num ) const</code>
<dd><code>size_t CompType::getMemberOffset(
<font color=red>unsigned</font> member_num ) const</code>
<dd><code>int CompType::getMemberDims(
<font color=red>unsigned</font> member_num, size_t* dims,
int* perm ) const</code>
<dd><code>H5T_class_t CompType::getMemberClass(
<font color=red>unsigned</font> member_num ) const</code>
<dd><code>hid_t CompType::p_get_member_type(
<font color=red>unsigned</font> member_num) const</code>
<dd><code>DataType CompType::getMemberDataType(
<font color=red>unsigned</font> member_num ) const</code>
<dd><code>ArrayType CompType::getMemberArrayType(
<font color=red>unsigned</font> member_num ) const</code>
<dd><code>CompType CompType::getMemberCompType(
<font color=red>unsigned</font> member_num ) const</code>
<dd><code>EnumType CompType::getMemberEnumType(
<font color=red>unsigned</font> member_num ) const</code>
<dd><code>IntType CompType::getMemberIntType(
<font color=red>unsigned</font> member_num ) const</code>
<dd><code>FloatType CompType::getMemberFloatType(
<font color=red>unsigned</font> member_num ) const</code>
<dd><code>StrType CompType::getMemberStrType(
<font color=red>unsigned</font> member_num ) const</code>
<dd><code>VarLenType CompType::getMemberVarLenType(
<font color=red>unsigned</font> member_num ) const</code>
</dl>
<!--
<h3>Deleted Constants</h3>
The following constants have been removed from the HDF5 Library:
<ul>
<li>Any?
<ul>
<li><code>Specifics?</code>
</ul>
</ul>
<h3>Constants with Changed Values</h3>
The following constants have been changed in this release:
<ul>
<li>Any?
<ul>
<li><code>Specifics?</code>
</ul>
</ul>
<h3>Changed Library Sturctures</h3>
The following library structures have changed and are now
defined as follows:
<p>
<dl>
<dt>C API:
<dt><code>struct_name</code>
<ul>
<li>new definition<br>
</ul>
<p>
-->
<h3>Changed Library Configuration</h3>
<ul>
<li>The path to the tr utility used by configure can be specififed
by setting the TR variable.
<li>The pdb2hdf tool has been deleted and PDB is no longer detected
by configure.
</ul>
</dir>
<p>
<h2>Release 1.6.4 versus Release 1.6.3</h2>
<dir>
This section lists the API-level changes that have been made in the
transition from the HDF5 Release 1.6.3 to Release 1.6.4.
<h3>New Functions and Tools</h3>
<dl>
<!--
<dt>C functions:
-->
<dt>C functions and
<dt>Fortran subroutines:
<dd>HDF5 Release 1.6.4 "Bugfix Release";
there are no new C APIs or Fortran subroutines.
<!--
<dd>The following C functions are new for Release 1.6.4 and
are documented in the
<a href="../RM_H5Front.html"><cite>HDF5 Reference Manual</cite></a>.
<table border="0">
<tr>
<td align="left" valign="top"><code>function</code>
</td>
<td align="left" valign="top">syntax<br>
See <a href="../RM_H5__.html#__">entry</a>.</td>
</tr>
</table>
-->
<dd>
<dt>High Level C APIs:
<dd>The High Level C APIs (HL), including the HDF5 Image,
HDF5 Table, and HDF5 Lite interfaces
(H5IM, H5TB, and H5LT, respectively) ,
have been brought into the main HDF5 source code distribution.
A link to the HL documentation appears on the opening
page of the HDF5 document set or can be accessed directly at
<a href="http://hdf.ncsa.uiuc.edu/HDF5/hdf5_hl/doc/RM_hdf5hl.html">
<code>http://hdf.ncsa.uiuc.edu/HDF5/hdf5_hl/doc/RM_hdf5hl.html</code></a>
<br><br>
The HL library, <code>libhdf5_hl.a(so)</code>,
is built and installed by default but can be disabled with
the <code>--disable-hl</code> configure flag.
<!--
<dd>
<dt>Fortran subroutines:
<dd>The following Fortran90 subroutines are new for Release 1.6.3
and are documented in the
<a href="../RM_H5Front.html"><cite>HDF5 Reference
Manual</cite></a>.
<table border="0">
<tr>
<td align="left" valign="top" colspan="2">New Fortran90
subroutines corresponding to the new C functions
listed above:<br>
</td>
</tr><tr>
<td align="left" valign="top">
<code>function</code><br>
<code>function</code>
</td>
<td align="left" valign="top">
<code>function</code>
</td>
</tr>
</table>
<table border="0">
<tr>
<td align="left" valign="top">New Fortran90 subroutines
corresponding to C functions from prior releases:<br>
None<br>
--><!--
<code>new_fortran_here</code><br>
<code>last_new_fortran_here</code>
--><!--
</td>
<td align="left" valign="top">
</td>
</tr>
</table>
-->
<!--
<dd>
<dt>C++ wrappers:
<dd>
-->
<dd>
<dt>Tools:
<dd>A new pair of tools, <code>h5jam</code> and <code>h5unjam</code>,
is available to manage user blocks in HDF5 files.
See <a href="../Tools.html#Tools-Jam">their entry</a>
in the <cite>HDF5 Reference Manual</cite>.
</dl>
<h3>Deleted Functions</h3>
The following functions have been removed in this release.
<dl>
<dd>
<dt>C++ wrappers:
<dd> The C++ wrappers now rely on the C library's reference
counting in place of the class <code>RefCounter</code>,
which existed before the C mechanism was available.
<code>RefCounter</code> has therefore been removed.
</dl>
<!--
None.
-->
<!--
The following functions are deprecated in HDF5 Release X.X.x.
A backward compatibility mode is provided in this release,
enabling these functions and other Release 1.4.x compatibility
features, but is available only when the HDF5 library is
configured with the flag <code>H5_WANT_H5_V1_4_COMPAT</code>.
The backward compatibility mode is not enabled in the
binaries distributed by NCSA.
<dir>
<table border=0>
<tr valign="top" align="left"><td>
</td><td>
<pre>
<code>function</code>
</pre>
</td><td>
</td><td>
<pre>
<code>function</code>
</pre>
</td><td>
</td><td>
<pre>
</pre>
</td></tr>
</table>
</dir>
<p>
The above functions will eventually be removed from the HDF5
distribution and from the <cite>HDF5 Reference Manual</cite>.
-->
<!--
The following functions have been removed in this release.
<dl>
<dd>
<dt>Category
<dd><code>function_name</code>
</dl>
-->
<h3>Functions with Changed Syntax</h3>
The following functions have changed as noted.
In general, one or more parameters or the return value has
changed from a signed to an unsigned datatype.
Changed items are indicated in
<font color="red">red</font>.
<p>
<dl>
<dt><u>C functions:</u>
<dt><code>H5Pget_version</code>
<dd><code>
herr_t H5Pget_version(hid_t plist_id,
<font color="red">unsigned *boot/*out*/</font>,
<br>
<font color="red">unsigned *freelist/*out*/</font>,
<font color="red">unsigned *stab/*out*/</font>,
<font color="red">unsigned *shhdr/*out*/</font>)
</code>
<dt><code>H5Pset_sym_k</code>
<dd><code>
H5Pset_sym_k(hid_t plist_id,
<font color="red">unsigned ik</font>, unsigned lk)
</code>
<dt><code>H5Pget_sym_k</code>
<dd><code>
H5Pget_sym_k(hid_t plist_id,
<font color="red">unsigned *ik/*out*/</font>,
unsigned *lk/*out*/)
</code>
<dt><code>H5Pset_istore_k</code>
<dd><code>
herr_t H5Pset_istore_k(hid_t plist_id,
<font color="red">unsigned ik</font>)
</code>
<dt><code>H5Pget_istore_k</code>
<dd><code>
herr_t H5Pget_istore_k(hid_t plist_id,
<font color="red">unsigned *ik/*out*/</font>)
</code>
<dt><code>H5Pget_external</code>
<dd><code>
herr_t H5Pget_external(hid_t plist_id,
<font color="red">unsigned idx</font>, size_t name_size,
<br>
char *name/*out*/, off_t *offset/*out*/,
hsize_t *size/*out*/)
</code>
<dt><code>H5Pget_filter</code>
<dd><code>
H5Z_filter_t H5Pget_filter(hid_t plist_id,
<font color="red">unsigned filter</font>,
<br>
unsigned int *flags/*out*/, size_t *cd_nelmts/*out*/,
<br>
unsigned cd_values[]/*out*/, unsigned int *flags/*out*/,
<br>
size_t namelen, char name[])
</code>
<dt><code>H5Sselect_hyperslab</code>
<dd><code>
herr_t H5Sselect_hyperslab(hid_t space_id, H5S_seloper_t op,
<br>
<font color="red">const hsize_t start[]</font>,
const hsize_t _stride[], const hsize_t count[],
<br>
const hsize_t _block[])
</code>
<dt><code>H5Sselect_elements</code>
<dd><code>
herr_t H5Sselect_elements(hid_t space_id, H5S_seloper_t op,
<br>
size_t num_elemn, <font color="red">const hsize_t **coord</font>)
</code>
<dt><code>H5Tget_member_name</code>
<dd><code>
char *H5Tget_member_name(hid_t type_id,
<font color="red">unsigned membno</font>)
</code>
<dt><code>H5Tget_member_offset</code>
<dd><code>
size_t H5Tget_member_offset(hid_t type_id,
<font color="red">unsigned membno</font>)
</code>
<dt><code>H5Tget_member_class</code>
<dd><code>
H5T_class_t H5Tget_member_class(hid_t type_id,
<font color="red">unsigned membno</font>)
</code>
<dt><code>H5Tget_member_type</code>
<dd><code>
hid_t H5Tget_member_type(hid_t type_id,
<font color="red">unsigned membno</font>)
</code>
<dt><code>H5Tget_member_value</code>
<dd><code>
herr_t H5Tget_member_value(hid_t type_id,
<font color="red">unsigned membno</font>,
<br>
void *value/*out*/)
</code>
<p>
<dt><code>H5Diterate</code> is affected by a similar change
in the syntax of <code>H5D_operator_t</code>.
<dd><code>
herr_t (*H5D_operator_t)(void *elem, hid_t type_id,
<font color="red">unsigned ndim</font>,
<br>
<font color="red">const hsize_t *point</font>,
void *operator_data)
</code>
<p>
<dt><u>Fortran subroutines:</u>
<dt><code>h5sselect_hyperslab_f</code>
<dd><code>
SUBROUTINE h5sselect_hyperslab_f(space_id, operator,
<font color="red">start</font>, count, &
<br>
hdferr, stride, block)
</code>
<dt><code>h5sselect_elements_f</code>
<dd><code>
SUBROUTINE h5sselect_elements_f(space_id, operator, rank, &
<br>
num_elements, <font color="red">coord</font>, hdferr)
</code>
<p>
<dt><u>C++ wrappers:</u>
<dt><code>FileCreatPropList::getVersion</code>
<dd><code>
void FileCreatPropList::getVersion(
<font color="red">unsigned& super</font>,
<font color="red">unsigned& freelist</font>,
<br>
<font color="red">unsigned& stab</font>,
<font color="red">unsigned& shhdr</font>) const
</code>
<!--
<dt><code>FileCreatPropList::setSymk</code>
<dd><code>
void FileCreatPropList::setSymk( int ik, int lk ) const
</code>
-->
<dt><code>FileCreatPropList::setSymk</code>
<dd><code>
void FileCreatPropList::setSymk(
<font color="red">unsigned ik</font>, unsigned lk ) const
</code>
<!--
<dt><code>FileCreatPropList::getSymk</code>
<dd><code>
void FileCreatPropList::getSymk( int& ik, int& lk ) const
</code>
-->
<dt><code>FileCreatPropList::getSymk</code>
<dd><code>
void FileCreatPropList::getSymk(
<font color="red">unsigned& ik</font>, unsigned& lk ) const
</code>
<dt><code>FileCreatPropList::setIstorek</code>
<dd><code>
void FileCreatPropList::setIstorek(
<font color="red">unsigned ik</font> ) const
</code>
<dt><code>FileCreatPropList::getIstorek</code>
<dd><code>
<font color="red">unsigned</font>
FileCreatPropList::getIstorek() const
</code>
<dt><code>DSetCreatPropList::getExternal</code>
<dd><code>
void DSetCreatPropList::getExternal(
<font color="red">unsigned idx</font>,
size_t name_size,
<br>
char* name, off_t& offset, hsize_t& size ) const
</code>
<dt><code>DSetCreatPropList::getFilter</code>
<dd><code>
H5Z_filter_t DSetCreatPropList::getFilter(
<font color="red">ine filter_number</font>,
<br>
unsigned int &flags, size_t &cd_nelmts, unsigned int* cd_values,
<br>
size_t namelen, char name[] ) const
</code>
<dt><code>DataSpace::selectHyperslab</code>
<dd><code>
void DataSpace::selectHyperslab( H5S_seloper_t op,
const hsize_t *count,
<br>
<font color="red">const hsize_t *start</font>,
const hsize_t *stride, const hsize_t *block ) const
</code>
<dt><code>DataSpace::selectElements</code>
<dd><code>
void DataSpace::selectElements( H5S_seloper_t op,
<br>
const size_t num_elements,
<font color="red">const hsize_t *coord[ ]</font> ) const
</code>
<dt><code>CompType::getMemberName</code>
<dd><code>
string CompType::getMemberName(
<font color="red">unsigned member_num</font> ) const
</code>
<dt><code>CompType::getMemberOffset</code>
<dd><code>
size_t CompType::getMemberOffset(
<font color="red">unsigned member_num</font> ) const
</code>
<dt><code>CompType::getMemberClass</code>
<dd><code>
H5T_class_t CompType::getMemberClass(
<font color="red">unsigned member_num</font> ) const
</code>
<dt><code>EnumType::getMemberValue</code>
<dd><code>
void EnumType::getMemberValue(
<font color="red">unsigned member_no</font>, void *value ) const
</code>
<!--
<dd>The prototype for this function was changed from:
<ul>
<li>old sytax<br>
</ul>
to:
<ul>
<li>new syntax<br>
</ul>
<p>
<dd>
<dt>C++ wrappers:
<dt><code>C++_wrapper_name</code>
<dd>Change...
<dd>
<dt>Fortran90 subroutines:
<dt><code>h5subroutine_f?</code>
<dd>Change...
-->
</dl>
<p>
<cite>(These lists of syntax changes were added
on 31 March and 5 April 2005, shortly after Release 1.6.4.)</cite>
<h3>Deleted Constants</h3>
The following constants have been removed from the HDF5 Library:
<ul>
<li>Error codes
<ul>
<li><code>H5E_CANTALLOC</code>
<li><code>H5E_CANTCHANGE</code>
<li><code>H5E_CANTRECV</code>
<li><code>H5E_CANTSENDMDATA</code>
<li><code>H5E_FPHDF5</code>
</ul>
<li>An internal identifier category
<ul>
<li><code>H5I_TEMPBUF</code>
</ul>
</ul>
<cite>(This list of deleted constants was added on 21 March 2005,
shortly after Release 1.6.4.)</cite>
<!--
<h3>Constants with Changed Values</h3>
The following library structures have changed as noted.
<p>
<dl>
<dt>C API:
<dt><code>struct_name</code>
<dd>This function pointer typedef's definition has been changed from:
<ul>
<li>old definition<br>
</ul>
to:
<ul>
<li>new definition<br>
</ul>
<p>
-->
<h3>Changed Library Configuration</h3>
<dl>
<dt>HDF5 Library configuration has been upgraded from
GNU autoconf 2.53 to autoconf 2.59.
</dl>
</dir>
<p>
<h2>Release 1.6.3 versus Release 1.6.2</h2>
<dir>
This section lists the API-level changes that have been made in the
transition from the HDF5 Release 1.6.2 to Release 1.6.3.
<h3>New Functions and Tools</h3>
<dl>
<dt>C functions:
<dd>The following C functions are new for Release 1.6.3 and
are documented in the
<a href="../RM_H5Front.html"><cite>HDF5 Reference Manual</cite></a>.
<table border="0">
<tr>
<td align="left" valign="top"><code>H5Fget_name</code>
</td>
<td align="left" valign="top"><em>ssize_t</em> <code>H5Fget_name</code>
(<em>hid_t</em> <code>obj_id</code>,
<em>char *</em><code>name</code>,
<em>size_t</em> <code>size</code>)<br>
See <a href="../RM_H5F.html#File-GetName">entry</a>.</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Fget_filesize</code>
</td>
<td align="left" valign="top"><em>herr_t</em> <code>H5Fget_filesize</code>
(<em>hid_t</em> <code>file_id</code>,
<em>hsize_t *</em> <code>size</code>)<br>
See <a href="../RM_H5F.html#File-GetFilesize">entry</a>.</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Iget_file_id</code>
</td>
<td align="left" valign="top"><em>hid_t</em> <code>H5Iget_file_id</code>
(<em>hid_t</em> <code>obj_id</code>)<br>
See <a href="../RM_H5I.html#Identify-GetFileId">entry</a>.</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Premove_filter</code>
</td>
<td align="left" valign="top"><em>herr_t</em> <code>H5Premove_filter</code>
(<em>hid_t</em> <code>obj_id</code>,
<em>H5Z_filter_t</em> <code>filter</code>)<br>
See <a href="../RM_H5P.html#Property-RemoveFilter">entry</a>.</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Zget_filter_info</code>
</td>
<td align="left" valign="top"><em>herr_t</em> <code>H5Zget_filter_info</code>
(<em>H5Z_filter_t</em> <code>filter</code>,
<em>unsigned int *</em> <code>flags</code>)<br>
See <a href="../RM_H5Z.html#Compression-GetFilterInfo">entry</a>.</td>
</tr>
</table>
<dd>
<dt>Fortran subroutines:
<dd>The following Fortran90 subroutines are new for Release 1.6.3
and are documented in the
<a href="../RM_H5Front.html"><cite>HDF5 Reference
Manual</cite></a>.
<table border="0">
<tr>
<td align="left" valign="top" colspan="2">New Fortran90
subroutines corresponding to the new C functions
listed above:<br>
</td>
</tr><tr>
<td align="left" valign="top">
<code>h5fget_name_f</code><br>
<code>h5fget_filesize_f</code>
</td>
<td align="left" valign="top">
<code>h5iget_file_id_f</code><br>
<code>h5premove_filter_f</code><br>
<code>h5zget_filter_info_f</code>
</td>
</tr>
</table>
<table border="0">
<tr>
<td align="left" valign="top">New Fortran90 subroutines
corresponding to C functions from prior releases:<br>
None<br>
<!--
<code>new_fortran_here</code><br>
<code>last_new_fortran_here</code>
-->
</td>
<td align="left" valign="top">
</td>
</tr>
</table>
<dd>
<dt>C++ wrappers:
<dd>C++ wrappers have been brought in sync with the C library,
rendering the C++ API significantly more complete.
Most of the new wrappers are for H5P and H5T APIs.
<p>
All available C++ elements are now documented in the
<a href="../cpplus_RM/index.html" target="CppExternal">
<cite>HDF5 C++ API Reference Manual</cite></a>.
(The <cite>HDF5 C++ API Reference Manual</cite> is also a
new addition in this release.)
<dd>
<dt>Tools:
<dd>The following tools are new for Release 1.6.3 and are
documented on the <a href="../Tools.html">Tools page</a> of the
<a href="../RM_H5Front.html"><cite>HDF5 Reference Manual</cite></a>.
<dd><code>h5new_tool</code> is designed to do whatever this sentence says.
(Clearly, this is a placeholder entry that should be removed before release.)
<dd>
<dd>The following tool was in Release 1.6.2 but was not included in formal documentation.
A full description is now included on the
<a href="../Tools.html">Tools page</a> of the
<a href="../RM_H5Front.html"><cite>HDF5 Reference Manual</cite></a>.
<dd><code>h5repack</code> is designed to copy an HDF5 file
to a new file with or without compression and/or chunking.
</dl>
<h3>Deleted Functions</h3>
<!--
None.
-->
<!--
The following functions are deprecated in HDF5 Release X.X.x.
A backward compatibility mode is provided in this release,
enabling these functions and other Release 1.4.x compatibility
features, but is available only when the HDF5 library is
configured with the flag <code>H5_WANT_H5_V1_4_COMPAT</code>.
The backward compatibility mode is not enabled in the
binaries distributed by NCSA.
<dir>
<table border=0>
<tr valign="top" align="left"><td>
</td><td>
<pre>
<code>function</code>
</pre>
</td><td>
</td><td>
<pre>
<code>function</code>
</pre>
</td><td>
</td><td>
<pre>
</pre>
</td></tr>
</table>
</dir>
<p>
The above functions will eventually be removed from the HDF5
distribution and from the <cite>HDF5 Reference Manual</cite>.
-->
The following function has been removed in this release.
<dl>
<dd>
<dt>C++ wrapper:
<dd><code>CompType::getMemberDims</code>
</dl>
<h3>Functions with Changed Syntax</h3>
The following functions have changed as noted.
<p>
<dl>
<dt>C functions:
<dt><code>H5Pset_fapl_multi</code>
<dd>The prototype for this function was changed from:
<ul>
<li><em>herr_t</em> <code>H5Pset_fapl_multi</code>
(<em>hid_t</em> <code>fapl_id</code>,
<em>const H5FD_mem_t *</em> <code>memb_map</code>,
<em>const hid_t *</em> <code>memb_fapl</code>,
<em>const char **</em> <code>memb_name</code>,
<em>const haddr_t *</em> <code>memb_addr</code>,
<em>hbool_t</em> <code>relax</code>)<br>
</ul>
to:
<ul>
<li><em>herr_t</em> <code>H5Pset_fapl_multi</code>
(<em>hid_t</em> <code>fapl_id</code>,
<em>const H5FD_mem_t *</em> <code>memb_map</code>,
<em>const hid_t *</em> <code>memb_fapl</code>,
<em>const char * const *</em> <code>memb_name</code>,
<em>const haddr_t *</em> <code>memb_addr</code>,
<em>hbool_t</em> <code>relax</code>)<br>
</ul>
<p>
This change should not appreciably affect application programs.
<dt><code>H5Tconvert</code>
<dd>The prototype for this function was changed from:
<ul>
<li><em>herr_t</em> <code>H5Tconvert</code>
(<em>hid_t</em> <code>src_id</code>,
<em>hid_t</em> <code>dst_id</code>,
<em>hsize_t</em> <code>nelmts</code>,
<em>void *</em> <code>buf</code>,
<em>void *</em> <code>background</code>,
<em>hid_t</em> <code>plist_id</code>)<br>
</ul>
to:
<ul>
<li><em>herr_t</em> <code>H5Tconvert</code>
(<em>hid_t</em> <code>src_id</code>,
<em>hid_t</em> <code>dst_id</code>,
<em>size_t</em> <code>nelmts</code>,
<em>void *</em> <code>buf</code>,
<em>void *</em> <code>background</code>,
<em>hid_t</em> <code>plist_id</code>)<br>
</ul>
<p>
This was changed to prevent overflows when <code>hsize_t</code> and
<code>size_t</code> types are different sizes. Application code
may need to be modified to take this into account. Application
code using this function may also be affected by the changes to
<code>H5Tregister</code> and <code>H5Tunregister</code> described
below.
<dt><code>H5Tregister</code> and <code>H5Tunregister</code>
<dd>These two routines are affected by the change to the
<code>H5T_conv_t</code> typedef (described below) and may
require application registered datatype conversion routines
to be modified to conform to the changed typedef.
<dd>
<dt>C++ wrappers:
<dt><code>H5::Exception</code> and its subclasses
<dd>Constructors used by <code>H5::Exception</code> and its
subclasses that were previously overloaded to take char pointers
have been removed.
Constructors that passed in a reference of <code>string</code>
have been changed to pass by value.
In addition, the default value of the detailed
message has been changed from <code>0/NULL</code> to
<code>DEFAULT_MSG</code>
(meaning "No detailed information provided").
<dd>
<dt><code>DSetCreatPropList::setLayout</code>
<dd>The prototype for <code>DSetCreatPropList::setLayout</code>
has been changed: the first parameter has been removed.
<!--
<dd>
<dt>Fortran90 subroutines:
<dt><code>h5subroutine_f?</code>
<dd>Change...
-->
</dl>
<h3>Constants with Changed Values</h3>
The following library structures have changed as noted.
<p>
<dl>
<dt>C API:
<dt><code>H5T_conv_t</code>
<dd>This function pointer typedef's definition has been changed from:
<ul>
<li><em>typedef herr_t</em> <code>(*H5T_conv_t)</code>
(<em>hid_t</em> <code>src_id</code>,
<em>hid_t</em> <code>dst_id</code>,
<em>H5T_cdata_t *</em> <code>cdata</code>,
<em>hsize_t</em> <code>nelmts</code>,
<em>size_t</em> <code>buf_stride</code>,
<em>size_t</em> <code>bkg_stride</code>,
<em>void *</em> <code>buf</code>,
<em>void *</em> <code>bkg</code>,
<em>hid_t</em> <code>plist_id</code>)<br>
</ul>
to:
<ul>
<li><em>typedef herr_t</em> <code>(*H5T_conv_t)</code>
(<em>hid_t</em> <code>src_id</code>,
<em>hid_t</em> <code>dst_id</code>,
<em>H5T_cdata_t *</em> <code>cdata</code>,
<em>size_t</em> <code>nelmts</code>,
<em>size_t</em> <code>buf_stride</code>,
<em>size_t</em> <code>bkg_stride</code>,
<em>void *</em> <code>buf</code>,
<em>void *</em> <code>bkg</code>,
<em>hid_t</em> <code>plist_id</code>)<br>
</ul>
<p>
This was changed to prevent overflows when <code>hsize_t</code> and
<code>size_t</code> types are different sizes. Application code
may need to be modified to take this into account.
</dir>
<p>
<h2>Release 1.6.2 versus Release 1.6.1</h2>
<dir>
This section lists the API-level changes that have been made in the
transition from the HDF5 Release 1.6.1 to Release 1.6.2.
<h3>New Functions and Tools</h3>
<dl>
<dt>C functions:
<dd>The following C functions are new for Release 1.6.2 and
are documented in the
<a href="../RM_H5Front.html"><cite>HDF5 Reference Manual</cite></a>.
<table border="0">
<tr>
<td align="left" valign="top"><code>H5Iget_ref</code>
</td>
<td align="left" valign="top"><em>int</em> <code>H5Iget_ref</code>
(<em>hid_t </em><code>obj_id</code>)<br>
See <a href="../RM_H5I.html#Identify-GetRef">entry</a>.</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Iinc_ref</code>
</td>
<td align="left" valign="top"><em>int</em> <code>H5Iinc_ref</code>
(<em>hid_t </em><code>obj_id</code>)<br>
See <a href="../RM_H5I.html#Identify-IncRef">entry</a>.</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Idec_ref</code>
</td>
<td align="left" valign="top"><em>int</em> <code>H5Idec_ref</code>
(<em>hid_t </em><code>obj_id</code>)<br>
See <a href="../RM_H5I.html#Identify-DecRef">entry</a>.</td>
</tr>
</table>
<dd>
<dt>Fortran subroutines:
<dd>The following Fortran90 subroutines are new for Release 1.6.2
and are documented in the
<a href="../RM_H5Front.html"><cite>HDF5 Reference Manual</cite></a>.
<table border="0">
<tr>
<td align="left" valign="top">Corresponding to the
new C functions listed above:<br>
<code>h5iget_ref_f</code><br>
<code>h5iinc_ref_f</code><br>
<code>h5idec_ref_f</code>
</td>
<td align="left" valign="top">
</td>
</tr>
</table>
<dd>
<dt>Tools:
<dd>The following tools are new for Release 1.6.2 and are
documented on the <a href="../Tools.html">Tools page</a> of the
<a href="../RM_H5Front.html"><cite>HDF5 Reference Manual</cite></a>.
<dd><code>h5pcc</code> is designed to aid in the compilation
of C applications that employ the HDF5 Library.
<dd><code>h5pfc</code> is designed to aid in the compilation
of Fortran90 applications that employ the HDF5 Library.
</dl>
<h3>Deleted Functions</h3>
None.
<!--
The following functions are deprecated in HDF5 Release X.X.x.
A backward compatibility mode is provided in this release,
enabling these functions and other Release 1.4.x compatibility
features, but is available only when the HDF5 library is
configured with the flag <code>H5_WANT_H5_V1_4_COMPAT</code>.
The backward compatibility mode is not enabled in the
binaries distributed by NCSA.
<dir>
<table border=0>
<tr valign="top" align="left"><td>
</td><td>
<pre>
<code>function</code>
</pre>
</td><td>
</td><td>
<pre>
<code>function</code>
</pre>
</td><td>
</td><td>
<pre>
</pre>
</td></tr>
</table>
</dir>
<p>
The above functions will eventually be removed from the HDF5
distribution and from the <cite>HDF5 Reference Manual</cite>.
-->
<h3>Functions with Changed Syntax</h3>
None.
<!--
The following functions have changed as noted.
<dl>
<dt>C functions:
<dt><code>H5function?</code>
<dd>Change....
<dd>
<dt>Fortran90 subroutines:
<dt><code>h5subroutine_f?</code>
<dd>Change...
</dl>
-->
<h3>Constants with Changed Values</h3>
None.
</dir>
<p>
<h2>Release 1.6.1 versus Release 1.6.0</h2>
<dir>
This section lists the API-level changes that have been made in the
transition from the HDF5 Release 1.6.0 to Release 1.6.1.
<h3>New Functions and Tools</h3>
<dl>
<dt>C functions:
<dd>The following C function is new for Release 1.6.1 and is documented in the
<a href="../RM_H5Front.html"><cite>HDF5 Reference Manual</cite></a>.
<table border="0">
<tr>
<td align="left" valign="top"><code>H5Fget_freespace</code>
</td>
<td align="left" valign="top"><em>hssize_t</em> <code>H5Fget_freespace</code>
(<em>hid_t </em><code>file_id</code>)<br>
See <a href="../RM_H5F.html#File-GetFreespace">entry</a>.</td>
</tr>
</table>
<dd>
<dt>Fortran subroutines
<dd>The following Fortran90 subroutines were new for Release 1.6.0
but were not documented. They are now included in the
<a href="../RM_H5Front.html"><cite>HDF5 Reference Manual</cite></a>.
<table border="0">
<tr>
<td align="left" valign="top"><code>h5get_fapl_mpiposix_f</code>
</td>
<td align="left" valign="top">
<code>h5pget_fapl_mpiposix_f(prp_id, comm, use_gpfs, hdferr)</code><br>
See <a href="../RM_H5P.html#Property-GetFaplMpiPosix">entry</a>.</td>
</tr><tr>
<td align="left" valign="top"><code>h5set_fapl_mpiposix_f</code>
</td>
<td align="left" valign="top">
<code>h5pset_fapl_mpiposix_f(prp_id, comm, use_gpfs, hdferr)</code><br>
See <a href="../RM_H5P.html#Property-SetFaplMpiPosix">entry</a>.</td>
</tr>
</table>
<dd>
<dt>Tools:
<dd>Release 1.6.1 contains no new tools.
<!--
<dd>The following tools are new for Release X.X.x and are included in the
<a href="../RM_H5Front.html"><cite>HDF5 Reference Manual</cite></a>.
<dd><code>new tool</code>
-->
</dl>
<h3>Deleted Functions</h3>
None.
<!--
The following functions are deprecated in HDF5 Release X.X.x.
A backward compatibility mode is provided in this release,
enabling these functions and other Release 1.4.x compatibility
features, but is available only when the HDF5 library is
configured with the flag <code>H5_WANT_H5_V1_4_COMPAT</code>.
The backward compatibility mode is not enabled in the
binaries distributed by NCSA.
<dir>
<table border=0>
<tr valign="top" align="left"><td>
</td><td>
<pre>
<code>function</code>
</pre>
</td><td>
</td><td>
<pre>
<code>function</code>
</pre>
</td><td>
</td><td>
<pre>
</pre>
</td></tr>
</table>
</dir>
<p>
The above functions will eventually be removed from the HDF5
distribution and from the <cite>HDF5 Reference Manual</cite>.
-->
<h3>Functions with Changed Syntax</h3>
The following functions have changed as noted.
<dl>
<dt>C functions:
<dt><code>H5Gget_obj_info</code>
<dd>The <code>H5G_stat_t</code> struct contains two new fields.<br>
This change will be transparent to existing applications,
though those calling <code>H5Gget_obj_info</code> will have
to be recompiled before linking with the updated library.
<dd>
<dt>Fortran90 subroutines:
<dt><code>h5pset_cache_f</code>
<dd>The <code>rdcc_nbytes</code> parameter has changed from
<code><em>INTEGER</em></code> to <code><em>INTEGER(SIZE_T)</em></code>
to better match the C API and the <code>h5pget_cache_f</code>
subroutine.
</dl>
<h3>Constants with Changed Values</h3>
None.
</dir>
<p>
<h2>Release 1.6.0 versus Release 1.4.5</h2>
<dir>
This section lists the API-level changes that have been made in the
transition from the HDF5 Release 1.4.<i>x</i> series to Release 1.6.0.
<h3>New Functions and Tools</h3>
<dl>
<dt>The following functions are new for Release 1.6.0 and are included in the
<a href="../RM_H5Front.html"><cite>HDF5 Reference Manual</cite></a>.
<dd>
<table border="0">
<tr>
<td align="left" valign="top"><code>H5set_free_list_limits</code></td>
<td align="left" valign="top">
<em>herr_t</em> <code>H5set_free_list_limits</code> (<em>int</em> <code>reg_global_lim</code>,
<em>int</em> <code>reg_list_lim</code>, <em>int</em> <code>arr_global_lim</code>,
<em>int</em> <code>arr_list_lim</code>, <em>int</em> <code>blk_global_lim</code>,
<em>int</em> <code>blk_list_lim</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Dget_offset</code></td>
<td align="left" valign="top"><em>hsize_t</em> <code>H5Dget_offset</code> (<em>hid_t </em><code>dset_id</code>)</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Dget_space_status</code></td>
<td align="left" valign="top"><em>hid_t</em> <code>H5Dget_space_status</code> (<em>hid_t</em>
<code>dset_id</code>, <em>H5D_space_status_t *</em><code>status</code>)
</td>
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Fget_obj_ids</code></td>
<td align="left" valign="top">
<em>int </em><code>H5Fget_obj_ids</code> (<em>hid_t</em> <code>file_id</code>,
<em>unsigned int</em> <code>types</code>,
<em>int</em> <code>max_objs</code>, <em>hid_t *</em><code>obj_id_list</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Fget_vfd_handle</code></td>
<td align="left" valign="top">
<em>herr_t </em><code>H5Fget_vfd_handle</code> (<em>hid_t</em> <code>file_id</code>,
<em>hid_t</em> <code>fapl_id</code>, <em>void *</em><code>file_handle</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Gget_num_objs</code></td>
<td align="left" valign="top">
<em>herr_t</em> <code>H5Gget_num_objs</code> (<em>hid_t</em> <code>loc_id</code>,
<em>hsize_t* </em> <code>num_obj</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Gget_objname_by_idx</code></td>
<td align="left" valign="top">
<em>ssize_t</em> <code>H5Gget_objname_by_idx</code> (<em>hid_t</em> <code>group_id</code>,
<em>hsize_t</em> <code>idx</code>, <em>char *</em><code>name</code>,
<em>size_t*</em> <code>size</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Gget_objtype_by_idx</code></td>
<td align="left" valign="top">
<em>int</em> <code>H5Gget_objtype_by_idx</code> (<em>hid_t</em> <code>group_id</code>,
<em>hsize_t</em> <code>idx</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Iget_name</code></td>
<td align="left" valign="top">
<em>ssize_t</em> <code>H5Iget_name</code> (<em>hid_t</em> <code>obj_id</code>,
<em>char *</em><code>name</code>, <em>size_t</em> <code>size</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Pall_filters_avail</code></td>
<td align="left" valign="top">
<em>htri_t</em> <code>H5Pall_filters_avail</code> (<em>hid_t</em> <code>dcpl_id</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Pfill_value_defined</code></td>
<td align="left" valign="top">
<em>herr_t </em><code>H5Pfill_value_defined</code> (<em>hid_t</em> <code>plist_id</code>,
<em>H5D_fill_value_t *</em><code>status</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Pget_alloc_time</code></td>
<td align="left" valign="top">
<em>herr_t </em><code>H5Pget_alloc_time</code> (<em>hid_t</em> <code>plist_id</code>,
<em>H5D_alloc_time_t *</em><code>alloc_time</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Pget_edc_check</code></td>
<td align="left" valign="top">
<em>H5Z_EDC_t</em> <code>H5Pget_edc_check</code> (<em>hid_t</em>
<code>plist</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Pget_family_offset</code></td>
<td align="left" valign="top">
<em>herr_t</em> <code>H5Pget_family_offset</code> (<em>hid_t</em> <code>fapl_id</code>,
<em>hsize_t *</em><code>offset</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Pget_fapl_mpiposix</code></td>
<td align="left" valign="top">
<em>herr_t</em> <code>H5Pget_fapl_mpiposix</code> (<em>hid_t</em> <code>fapl_id</code>,
<em>MPI_Comm *</em><code>comm</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Pget_fclose_degree</code></td>
<td align="left" valign="top">
<em>herr_t</em> <code>H5Pget_fclose_degree</code>(<em>hid_t</em> <code>fapl_id</code>,
<em>H5F_close_degree_t *</em><code>fc_degree</code>)
<br>
<i>(This item corrected 14 September 2004.)</i>
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Pget_fill_time</code></td>
<td align="left" valign="top">
<em>herr_t </em><code>H5Pget_fill_time</code> (<em>hid_t</em> <code>plist_id</code>,
<em>H5D_fill_time_t *</em><code>fill_time</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Pget_filter_by_id</code></td>
<td align="left" valign="top">
<em>herr_t</em> <code>H5Pget_filter_by_id</code> (<em>hid_t</em> <code>plist_id</code>,
<em>H5Z_filter_t</em> <code>filter</code>, <em>unsigned int *</em><code>flags</code>,
<em>size_t *</em><code>cd_nelmts</code>, <em>unsigned int</em> <code>cd_values[]</code>,
<em>size_t</em> <code>namelen</code>, <em>char *</em><code>name[]</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Pget_hyper_vector_size</code></td>
<td align="left" valign="top">
<em>herr_t</em> <code>H5Pget_hyper_vector_size</code> (<em>hid_t</em> <code>dxpl_id</code>,
<em>size_t *</em><code>vector_size</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Pget_multi_type</code></td>
<td align="left" valign="top">
<em>herr_t</em> <code>H5Pget_multi_type</code> (<em>hid_t</em> <code>fapl_id</code>,
<em>H5FD_mem_t *</em><code>type</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Pmodify_filter</code></td>
<td align="left" valign="top">
<em>herr_t</em> <code>H5Pmodify_filter</code> (<em>hid_t</em> <code>plist</code>,
<em>H5Z_filter_t</em> <code>filter</code>, <em>unsigned int</em> <code>flags</code>,
<em>size_t</em> <code>cd_nelmts</code>, <em>const unsigned int</em> <code>cd_values[]</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Pset_alloc_time</code></td>
<td align="left" valign="top">
<em>herr_t </em><code>H5Pset_alloc_time</code> (<em>hid_t</em>
<code>plist_id</code>, <em>H5D_alloc_time_t</em> <code>alloc_time</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Pset_edc_check</code></td>
<td align="left" valign="top">
<em>herr_t</em> <code>H5Pset_edc_check</code> (<em>hid_t</em>
<code>plist</code>, <em>H5Z_EDC_t</em> <code>check</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Pset_family_offset</code></td>
<td align="left" valign="top">
<em>herr_t</em> <code>H5Pset_family_offset</code> (<em>hid_t</em> <code>fapl_id</code>,
<em>hsize_t</em> <code>offset</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Pset_fapl_mpiposix</code></td>
<td align="left" valign="top">
<em>herr_t</em> <code>H5Pset_fapl_mpiposix</code> (<em>hid_t</em> <code>fapl_id</code>,
<em>MPI_Comm</em> <code>comm</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Pset_fclose_degree</code></td>
<td align="left" valign="top">
<em>herr_t</em> <code>H5Pset_fclose_degree</code>(<em>hid_t</em> <code>fapl_id</code>,
<em>H5F_close_degree_t</em> <code>fc_degree</code>)
<br>
<i>(This item corrected 14 September 2004.)</i>
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Pset_fill_time</code></td>
<td align="left" valign="top">
<em>herr_t </em><code>H5Pset_fill_time</code> (<em>hid_t</em> <code>plist_id</code>,
<em>H5D_fill_time_t</em> <code>fill_time</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Pset_filter</code></td>
<td align="left" valign="top">
<em>herr_t</em> <code>H5Pset_filter</code>
(<em>hid_t</em> <code>plist</code>, <em>H5Z_filter_t</em> <code>filter</code>,
<em>unsigned int</em> <code>flags</code>, <em>size_t</em> <code>cd_nelmts</code>,
<em>const unsigned int</em> <code>cd_values[])</code>
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Pset_filter_callback</code></td>
<td align="left" valign="top">
<em>herr_t</em> <code>H5Pset_filter_callback</code> (<em>hid_t</em>
<code>plist</code>, <em>H5Z_filter_func_t</em> <code>func</code>,
<em>void *</em><code>op_data</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Pset_fletcher32</code></td>
<td align="left" valign="top">
<em>herr_t</em> <code>H5Pset_fletcher32</code> (<em>hid_t</em>
<code>plist</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Pset_hyper_vector_size</code> </td>
<td align="left" valign="top">
<em>herr_t</em> <code>H5Pset_hyper_vector_size</code> (<em>hid_t</em> <code>dxpl_id</code>,
<em>size_t</em> <code>vector_size</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Pset_multi_type</code></td>
<td align="left" valign="top">
<em>herr_t</em> <code>H5Pset_multi_type</code> (<em>hid_t</em> <code>fapl_id</code>,
<em>H5FD_mem_t</em> <code>type</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Pset_shuffle</code></td>
<td align="left" valign="top">
<em>herr_t</em> <code>H5Pset_shuffle</code> (<em>hid_t</em> <code>plist_id</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Pset_szip</code></td>
<td align="left" valign="top">
<em>herr_t</em> <code>H5Pset_szip</code> (<em>hid_t</em> <code>plist</code>,
<em>unsigned int</em> <code>options_mask</code>, <em>unsigned int</em>
<code>pixels_per_block</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Rget_object_type</code></td>
<td align="left" valign="top">
<em>int</em> <code>H5Rget_object_type</code> (<em>hid_t</em> <code>id</code>,
<em>void *</em><code>ref</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Sget_select_type</code></td>
<td align="left" valign="top">
<em>H5S_sel_type</em> <code>H5Sget_select_type</code> (<em>hid_t</em> <code>space_id</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Tdetect_class</code></td>
<td align="left" valign="top">
<em>htri_t </em><code>H5Tdetect_class</code> (<em>hid_t</em> <code>dtype_id</code>,
<em>H5T_class_t</em> <code>dtype_class</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Tget_native_type</code></td>
<td align="left" valign="top">
<em>hid_t</em> <code>H5Tget_native_type</code> (<em>hid_t</em> <code>type_id</code>,
<em>H5T_direction_t</em> <code>direction</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Tis_variable_str</code></td>
<td align="left" valign="top">
<em>htri_t </em><code>H5Tis_variable_str</code> (<em>hid_t </em><code>dtype_id</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Zfilter_avail</code></td>
<td align="left" valign="top">
<em>herr_t</em> <code>H5Zfilter_avail</code> (<em>H5Z_filter_t</em> <code>filter</code>)
</td>
</tr>
<tr>
<td align="left" valign="top"><code>H5Zunregister</code></td>
<td align="left" valign="top">
<em>herr_t</em> <code>H5Zunregister</code> (<em>H5Z_filter_t</em> <code>filter</code>)
</td>
</tr>
</table>
</dd>
<dd> </dd>
</dt>
<dt>The following tools are new for Release 1.6.0 and are included in the
<a href="../RM_H5Front.html"><cite>HDF5 Reference Manual</cite></a>.
<dd><code>h5diff</code>
<dd><code>h5import</code>
<dd><code>h5fc</code>
<dd><code>h5c++</code>
<dd><code>h5perf</code>
<dd><code>h5redeploy</code>
</dt>
</dl>
<h3>Deleted Functions</h3>
The following functions are deprecated in HDF5 Release 1.6.0.
A backward compatibility mode is provided in this release,
enabling these functions and other Release 1.4.x compatibility
features, but is available only when the HDF5 library is
configured with the flag <code>H5_WANT_H5_V1_4_COMPAT</code>.
The backward compatibility mode is not enabled in the
binaries distributed by NCSA.
<dir>
<table border=0>
<tr valign="top" align="left"><td>
</td><td>
<pre>
<code>H5Pset_hyper_cache</code>
<code>H5Pget_hyper_cache</code>
</pre>
</td><td>
</td><td>
<pre>
<code>H5Rget_object_type</code>
</pre>
</td><td>
</td><td>
<pre>
</pre>
</td></tr>
</table>
</dir>
<p>
The above functions will eventually be removed from the HDF5
distribution and from the <cite>HDF5 Reference Manual</cite>.
<h3>Functions with Changed Syntax</h3>
The following functions have changed as noted.
<dir>
<dl>
<dt>C functions:
<dt><code>H5FDflush and VFL "flush" callbacks</code>
<dd>An extra parameter <code>closing</code> has been added to
these functions,
to allow the library to indicate that the file will be closed
following the call to "flush". Actions in the "flush" call
that are duplicated in the VFL "close" call may be omitted by
the VFL driver.
<dt>* <code>H5Gget_objtype_by_idx</code>
<dd>The function return type has changed from
<code><em>int</em></code> to
the enumerated type <code><em>H5G_obj_t</em></code>.
<dt>* <code>H5Pset(get)_buffer</code>
<dd>The <code>size</code> parameter for <code>H5Pset_buffer</code>
has changed from type <code><em>hsize_t</em></code> to
<code><em>size_t</em></code>.
<dd>The <code>H5Pget_buffer</code> return type has similarly
changed from <code><em>hsize_t</em></code> to
<code><em>size_t</em></code>.
<dt>* <code>H5Pset(get)_cache</code>
<dd>The <code>rdcc_nbytes</code> parameter has changed from type
<code><em>int</em></code> to
<code><em>size_t</em></code>.
<br>
<i>(This item corrected 3 March 2004.)</i>
<dt>* <code>H5Pset_fapl_log</code>
<dd>The <code>verbosity</code> parameter has been removed.
<dd>Two new parameters have been added:
<code>flags</code> of type <code><em>unsigned</em></code> and
<code>buf_size</code> of type <code><em>size_t</em></code>.
<dt>* <code>H5Pset(get)_fapl_mpiposix</code>
<dd>A <code>use_gpfs</code> parameter of type
<code><em>hbool_t</em></code> has been added.
<dt>* <code>H5Pset(get)_sieve_buf_size</code>
<dd>The <code>size</code> parameter has changed from type
<code><em>hsize_t</em></code> to
<code><em>size_t</em></code>.
<dt>* <code>H5Pset(get)_sym_k</code>
<dd>The <code>lk</code> parameter has changed from type
<code><em>int</em></code> to
<code><em>unsigned</em></code>.
<dt>* <code>H5Sget_select_bounds</code>
<dd>The <code>start</code> and <code>end</code> parameters have
changed from type <code><em>hsize_t *</em></code>
to <code><em>hssize_t *</em></code> to better match the
rest of the dataspace API.
<dt>* <code>H5Zregister</code>
<dd>This function is substantially revised in Release 1.6.0 with
a new <code>H5Z_class_t</code> struct and
new <i>set local</i> and <i>can apply</i> callback functions.
<dt>
<dt>Fortran90 functions:
<dt><code>h5pset(get)_fapl_core_f</code>
<dd>The <code>backing_store</code> parameter has changed from
<code><em>INTEGER</em></code> to <code><em>LOGICAL</em></code>
to better match the C API.
<dt><code>h5pset(get)_preserve_f</code>
<dd>The <code>flag</code> parameter has changed from
<code><em>INTEGER</em></code> to <code><em>LOGICAL</em></code>
to better match the C API.
</dl>
</dir>
<p>
Backward compatibility with the Release 1.4.x syntax is available
for the functions indicated above with a leading asterisk (*).
The backward compatibility features are available only when the
HDF5 library is configured with the flag
<code>H5_WANT_H5_V1_4_COMPAT</code>,
is not enabled in the binaries distributed by NCSA, and
will eventually be removed from the HDF5 distribution.
<h3>Constants with Changed Values</h3>
</dir>
<p>
<h2>Release 1.4.5 versus Release 1.4.4</h2>
<dir>
<h3>C Library</h3>
<dir>
<b>Added functions:</b>
<dir>
<table border=0>
<tr valign=top align=left><td>
<pre>
herr_t H5Pset_fapl_mpiposix(hid_t fapl_id, MPI_Comm comm);
herr_t H5Pget_fapl_mpiposix(hid_t fapl_id, MPI_Comm *comm/*out*/);
</pre>
</td></tr>
</table>
</dir>
<b>Changed functions:</b>
<dir>
The following functions have changed behavior.
<p>
<table border=0>
<tr valign=top align=left><td>
<code>H5Pset_fapl_mpio </code><br>
<code>H5Pget_fapl_mpio</code><br>
<code>H5Fcreate</code><br>
<code>H5Fopen</code><br>
<code>H5Fclose</code>
</td><td>
Previously, the Communicator and Info object arguments supplied
to <code>H5Pset_fapl_mpio</code> were stored in the property with
its handle values.
This meant changes to the communicator or the Info object
after calling <code>H5Pset_fapl_mpio</code> would affect the how
the property list functioned.
This was also the case when <code>H5Fopen/create</code> operated.
They just stored the handle value. This is not according to the
MPI-2 defined behavior of how Info objects should be handled.
(MPI-2 defines Info objects must be parsed when called.)<br>
<code>H5Pset_fapl_mpio</code> now stores a duplicate of each of
the communicator and Info object.<br>
<code>H5Pget_fapl_mpio</code> now returns a duplicate of its
stored communicator and Info object.
It is now the responsibility of the applications to free
those objects when done.<p>
<code>H5Fcreate</code> and <code>H5Fopen</code> also store
a duplicate of the communicator and Info
object supplied by the file access property List.
<code>H5Fclose</code> frees the duplicates.<p>
Advice to users: User applications should release the communicator and
Info object returned by <code>H5Pget_fapl_mpio</code> when they are
no longer needed.
</td></tr>
</table>
</dir>
<b>Removed functions:</b>
<dir>
<table border=0>
<tr valign=top align=left><td>
None
<!--
<pre>
List deleted function(s) here. Remove forced spaces.
</pre>
-->
</td><td>
</td><td>
<pre>
<!-- List deleted function(s) here. Remove forced spaces. -->
</pre>
</td></tr>
</table>
</dir>
There were no other public API changes in the C library for this release.
</dir>
<h3>Fortran90 Library</h3>
<dir>
The following missing Fortran functions were added:
<br>
<br>
<code> h5get_libversion_f, h5check_version_f, h5garbage_collect_f, h5dont_atexit_f </code>
<br>
<code> h5tget_member_index_f, h5tvlen_create_f </code>
<br>
<code> h5dget_storage_size_f, h5dvlen_get_max_len_f , h5dwrite_vl_f, h5dread_vl_f</code>
<br>
<br>
Only <code>integer, real</code> and
<code>character</code> types are supported for VL datatypes.
</dir>
</dir>
<!-- Document API CHANGES ONLY in this file. -->
<h2>Release 1.4.4 versus Release 1.4.3</h2>
<dir>
<h3>C Library</h3>
<dir>
<b>Added functions:</b>
<dir>
<table border=0>
<tr valign=top align=left><td>
<pre>
H5Pget_small_data_block_size
H5Pset_small_data_block_size
H5Tget_member_index
</pre>
</td><td>
</td><td>
<pre>
<!-- List added function(s) here. Remove forced spaces. -->
</pre>
</td></tr>
</table>
</dir>
<b>Changed functions:</b>
<dir>
<table border=0>
<tr valign=top align=left><td>
None
<!--
<pre>
List deleted function(s) here. Remove forced spaces.
</pre>
-->
</td><td>
</td><td>
<pre>
<!-- List deleted function(s) here. Remove forced spaces. -->
</pre>
</td></tr>
</table>
</dir>
<b>Removed functions:</b>
<dir>
<table border=0>
<tr valign=top align=left><td>
None
<!--
<pre>
List deleted function(s) here. Remove forced spaces.
</pre>
-->
</td><td>
</td><td>
<pre>
<!-- List deleted function(s) here. Remove forced spaces. -->
</pre>
</td></tr>
</table>
</dir>
There were no other public API changes in the C library for this release.
</dir>
<h3>Fortran90 Library</h3>
<dir>
<code>h5dwrite_f, h5dread_f, h5awrite_f, h5aread_f </code>were overloaded
with <code>dims</code> argument to be assumed size array of type <code>INTEGER(HSIZE_T).</code>
We recommend to use the subroutines with the new type. Module subroutines
that accept <code>dims</code> as <code>INTEGER</code> array of size <code>7</code> will be deprecated in the 1.6.0 release.
</dir>
</dir>
<h2>Release 1.4.3 versus Release 1.4.2</h2>
<dir>
<h3>C Library</h3>
<dir>
<b>Removed function:</b>
<dir>
<table border=0>
<tr valign=top align=left><td>
<pre>
H5Pset_fapl_dpss </pre>
</td><td>
</td><td>
<pre>
<!-- new deleted functions here. Remove forced spaces. -->
</pre>
</td><td>
</td><td>
<pre>
<!-- new deleted functions here. Remove forced spaces. -->
</pre>
</td></tr>
</table>
</dir>
There were no other public API changes in the C library for this release.
</dir>
<h3>Fortran90 Library</h3>
<dir>
There were no changes to the public Fortran90 APIs for this release.
</dir>
</dir>
<h2>Release 1.4.2 versus Release 1.4.1</h2>
<dir>
<h3>C Library</h3>
The HDF5 Release 1.4.2 C library is a "Bugfix Release";
there are no API changes in the underlying HDF5 library.
<h3>Fortran90 Library</h3>
The following functions in the HDF5 Release 1.4.2 Fortran90 library
have an additional parameter, <code>dims</code>, that was not present
in Release 1.4.1:
<dir>
<pre>
<font color=red>h5aread_f</font>(attr_id, memtype_id, buf, dims, hdferr)
<font color=red>h5awrite_f</font>(attr_id, memtype_id, buf, dims, hdferr)
<font color=red>h5dread_f</font>(dset_id, mem_type_id, buf, dims, hdferr, mem_space_id, &
file_space_id, xfer_prp)
<font color=red>h5dwrite_f</font>(dset_id, mem_type_id, buf, dims, hdferr, mem_space_id, &
file_space_id, xfer_prp)
</pre>
</dir>
The <code>dims</code> parameter enables library portability
between the UNIX and Microsoft Windows platforms.
</dir>
<h2>Release 1.4.1 versus Release 1.4.0</h2>
<dir>
Release 1.4.1 is a "Tools Release"; there are no API changes in the
underlying HDF5 library.
</dir>
<h2>Release 1.4.0 versus Release 1.2.2</h2>
<dir>
Several functions were added to or removed from the HDF5 library
in the development of Release 1.4.0.
A few functions have been modified in minor ways.
<h3>New Functions</h3>
The following functions are new for Release 1.4.0 and are included in the
<a href="../RM_H5Front.html"><cite>HDF5 Reference Manual</cite></a>.
<dir>
<pre>
herr_t <font color=red>H5Dvlen_get_buf_size</font> (hid_t dataset_id, hid_t type_id,
hid_t space_id, hsize_t *size);
herr_t <font color=red>H5Epush</font> (const char *file, const char *func,
unsigned line, H5E_major_t maj, H5E_minor_t min,
const char *str);
hid_t <font color=red>H5Pget_driver</font> (hid_t plist_id);
void *<font color=red>H5Pget_driver_info</font> (hid_t plist_id);
herr_t <font color=red>H5Pget_dxpl_mpio</font> (hid_t dxpl_id,
H5FD_mpio_xfer_t *xfer_mode/*out*/);
herr_t <font color=red>H5Pget_dxpl_multi</font> (hid_t dxpl_id,
hid_t *memb_dxpl/*out*/);
herr_t <font color=red>H5Pget_fapl_core</font> (hid_t fapl_id, size_t *increment/*out*/,
hbool_t *backing_store/*out*/)
herr_t <font color=red>H5Pget_fapl_family</font> (hid_t fapl_id,
hsize_t *memb_size/*out*/, hid_t *memb_fapl_id/*out*/);
herr_t <font color=red>H5Pget_fapl_mpio</font> (hid_t fapl_id, MPI_Comm *comm/*out*/,
MPI_Info *info/*out*/);
herr_t <font color=red>H5Pget_fapl_multi</font> (hid_t fapl_id,
H5FD_mem_t *memb_map/*out*/, hid_t *memb_fapl/*out*/,
char **memb_name/*out*/, haddr_t *memb_addr/*out*/,
hbool_t *relax/*out*/);
herr_t <font color=red>H5Pget_fapl_stream</font> (hid_t fapl_id,
H5FD_stream_fapl_t *fapl /*out*/ );
herr_t <font color=red>H5Pget_meta_block_size</font> (hid_t fapl_id,
hsize_t *size/*out*/);
herr_t <font color=red>H5Pget_sieve_buf_size</font> (hid_t fapl_id,
hsize_t *size/*out*/);
herr_t <font color=red>H5Pset_driver</font> (hid_t plist_id, hid_t driver_id,
const void *driver_info);
herr_t <font color=red>H5Pset_dxpl_mpio</font> (hid_t dxpl_id,
H5FD_mpio_xfer_t xfer_mode);
herr_t <font color=red>H5Pset_dxpl_multi</font> (hid_t dxpl_id,
const hid_t *memb_dxpl);
herr_t <font color=red>H5Pset_fapl_core</font> (hid_t fapl_id, size_t increment,
hbool_t backing_store)
herr_t <font color=red>H5Pset_fapl_family</font> (hid_t fapl_id, hsize_t memb_size,
hid_t memb_fapl_id);
herr_t <font color=red>H5Pset_fapl_log</font> (hid_t fapl_id, char *logfile,
int verbosity);
herr_t <font color=red>H5Pset_fapl_mpio</font> (hid_t fapl_id, MPI_Comm comm,
MPI_Info info);
herr_t <font color=red>H5Pset_fapl_multi</font> (hid_t fapl_id,
const H5FD_mem_t *memb_map, const hid_t *memb_fapl,
const char **memb_name, const haddr_t *memb_addr,
hbool_t relax);
herr_t <font color=red>H5Pset_fapl_sec2</font> (hid_t fapl_id);
herr_t <font color=red>H5Pset_fapl_split</font> (hid_t fapl, const char *meta_ext,
hid_t meta_plist_id, const char *raw_ext,
hid_t raw_plist_id);
herr_t <font color=red>H5Pset_fapl_stdio</font> (hid_t fapl_id);
herr_t <font color=red>H5Pset_fapl_stream</font> (hid_t fapl_id,
H5FD_stream_fapl_t *fapl);
herr_t <font color=red>H5Pset_meta_block_size</font>(hid_t fapl_id, hsize_t size);
herr_t <font color=red>H5Pset_sieve_buf_size</font>(hid_t fapl_id, hsize_t size);
hid_t <font color=red>H5Tarray_create</font> (hid_t base, int rank, const hsize_t dims[],
const int perm[])
int <font color=red>H5Tget_array_dims</font> (hid_t adtype_id, hsize_t *dims[], int *perm[])
int <font color=red>H5Tget_array_ndims</font> (hid_t adtype_id)
</pre>
</dir>
<p>
The following functions are new for Release 1.4.0, but
are intended only for use in specialized environments.
These are also included in the
<a href="../RM_H5Front.html"><cite>HDF5 Reference Manual</cite></a>.
<dir>
<pre>
herr_t <font color=red>H5Pget_fapl_dpss</font> (hid_t fapl_id);
herr_t <font color=red>H5Pget_fapl_gass</font> (hid_t fapl_id, GASS_Info *info/*out*/);
herr_t <font color=red>H5Pget_fapl_srb</font> (hid_t fapl_id, SRB_Info *info);
herr_t <font color=red>H5Pset_fapl_dpss</font> (hid_t fapl_id);
herr_t <font color=red>H5Pset_fapl_gass</font> (hid_t fapl_id, GASS_Info info);
herr_t <font color=red>H5Pset_fapl_srb</font> (hid_t fapl_id, SRB_Info info);
</pre>
</dir>
<p>
The following functions are new for Release 1.4.0 but are intended
only for driver development work, not for general use.
They are listed in the
<a href="../TechNotes/VFLfunc.html"><cite>List of VFL Functions</cite></a>
document in the
<a href="../TechNotes.html"><cite>HDF5 Technical Notes</cite></a>.
They are described in detail only in the source code and
do not appear in the <cite>HDF5 Reference Manual</cite>.
<dir>
<pre>
haddr_t <font color=red>H5FDalloc</font> (H5FD_t *file, H5FD_mem_t type,
hsize_t size);
herr_t <font color=red>H5FDclose</font> (H5FD_t *file);
int <font color=red>H5FDcmp</font> (const H5FD_t *f1, const H5FD_t *f2);
herr_t <font color=red>H5FDflush</font> (H5FD_t *file);
herr_t <font color=red>H5FDfree</font> (H5FD_t *file, H5FD_mem_t type,
haddr_t addr, hsize_t size);
haddr_t <font color=red>H5FDget_eoa</font> (H5FD_t *file);
haddr_t <font color=red>H5FDget_eof</font> (H5FD_t *file);
H5FD_t *<font color=red>H5FDopen</font> (const char *name, unsigned flags,
hid_t fapl_id, haddr_t maxaddr);
int <font color=red>H5FDquery</font> (const H5FD_t *f, unsigned long *flags);
herr_t <font color=red>H5FDread</font> (H5FD_t *file, hid_t dxpl_id, haddr_t addr,
hsize_t size, void *buf/*out*/);
haddr_t <font color=red>H5FDrealloc</font> (H5FD_t *file, H5FD_mem_t type,
haddr_t addr, hsize_t old_size, hsize_t new_size);
hid_t <font color=red>H5FDregister</font> (const H5FD_class_t *cls);
herr_t <font color=red>H5FDset_eoa</font> (H5FD_t *file, haddr_t eof);
herr_t <font color=red>H5FDunregister</font> (hid_t driver_id);
herr_t <font color=red>H5FDwrite</font> (H5FD_t *file, H5FD_mem_t type,
hid_t dxpl_id, haddr_t addr, hsize_t size,
const void *buf);
</pre>
</dir>
<h3>Deleted Functions</h3>
The following functions have been removed from the HDF5 library
and from the <cite>HDF5 Reference Manual</cite>.
<dir>
<table>
<tr valign=top align=left><td>
<pre>
H5Pget_core
H5Pget_driver
H5Pget_family
H5Pget_mpi
H5Pget_sec2
H5Pget_split
H5Pget_stdio
H5Pget_xfer
</pre>
</td><td>
</td><td>
<pre>
H5Pset_core
H5Pset_family
H5Pset_mpi
H5Pset_sec2
H5Pset_split
H5Pset_stdio
H5Pset_xfer
</pre>
</td><td>
</td><td>
<pre>
H5RAclose
H5RAcreate
H5RAopen
H5RAread
H5RAwrite
H5Tget_member_dims
H5Tinsert_array
</pre>
</td></tr>
</table>
</dir>
Note that the entire H5RA interface, an experimental interface for
ragged arrays, has been removed from the library.
<h3>Functions with Changed Syntax</h3>
The following functions have changed slightly.
<dir>
<dl>
<dt><code>H5Pget_buffer</code>
<dd>Return type has changed to <em>hsize_t</em>.
<dt><code>H5Pset_buffer</code>
<dd>The type of the <code>size</code> parameter has changed
to <em>hsize_t</em>.
<dt><code>H5Tconvert</code>
<dd>The type of the <code>nelmts</code> parameter has changed
to <em>hsize_t</em>.
</dl>
</dir>
<h3>Constants with Changed Values</h3>
The values of the constants <code>H5P_DEFAULT</code> and
<code>H5S_ALL</code> have been changed from <code>-2</code>
to <code>0</code>.
These default values had to be special-cased in situations where
they could be returned to distinguish them from error values.
</dir>
<p>
<h2>Migration from Release 1.2.2 to Release 1.4.<em>x</em></h2>
<dir>
<h3>H5Tinsert_array</h3>
The functionality of <code>H5Tinsert_array</code> has been replaced by
<code>H5Tarray_create</code>.
Here is an example of changing code from <code>H5Tinsert_array</code>
to <code>H5Tarray_create</code>.
<pre>
V1.2.2
{
struct tmp_struct {
int a;
float f[3];
double d[2][4];
};
size_t f_dims[1]={3};
size_t d_dims[2]={2,4};
hid_t compound_type;
compound_type=H5Tcreate(H5T_COMPOUND,sizeof(struct tmp_struct));
H5Tinsert(compound_type,"a",HOFFSET(struct tmp_struct,a),H5T_NATIVE_INT);
H5Tinsert_array(compound_type,"f",HOFFSET(struct tmp_struct,f),1,f_dims,NULL,H5T_NATIVE_FLOAT);
H5Tinsert_array(compound_type,"d",HOFFSET(struct tmp_struct,d),2,d_dims,NULL,H5T_NATIVE_DOUBLE);
}
V1.4.0
{
struct tmp_struct {
int a;
float f[3];
double d[2][4];
};
hsize_t f_dims[1]={3};
hsize_t d_dims[2]={2,4};
hid_t compound_type;
hid_t array_type;
compound_type=H5Tcreate(H5T_COMPOUND,sizeof(struct tmp_struct));
H5Tinsert(compound_type,"a",HOFFSET(struct tmp_struct,a),H5T_NATIVE_INT);
array_type=H5Tarray_create(H5T_NATIVE_FLOAT,1,f_dims,NULL);
H5Tinsert(compound_type,"f",HOFFSET(struct tmp_struct,f),array_type);
H5Tclose(array_type);
array_type=H5Tarray_create(H5T_NATIVE_DOUBLE,2,d_dims,NULL);
H5Tinsert(compound_type,"d",HOFFSET(struct tmp_struct,d),array_type);
H5Tclose(array_type);
}
</pre>
</dir>
<h2>This and Prior Releases: The RELEASE.txt and HISTORY.txt Files</h2>
<dir>
The HDF5 source code, as distributed to users and developers,
contains two files that will be of interest to readers of this
document. Both files are located at the top level of the
source code tree and are duplicated here for your reference:
<p>
<dl>
<dt><a href="RELEASE.txt" target="ExtWin">RELEASE.txt</a>
<dd>Technical notes regarding the release, including
new features and the changes since the last release,
notes regarding new or revised utilities,
notes regarding alternative language APIs (Fortran90, C++),
bugs fixed since the last release,
platforms on which the release has been tested, and
known problems.
This is the file commonly known as "the release notes."
<p>
<dt><a href="HISTORY.txt" target="ExtWin">HISTORY.txt</a>
<dd>A release-by-release history of the HDF5 library.
This file is a compiled set of the release notes
(i.e., the RELEASE.txt files) from prior releases.
<dl>
</dir>
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<a href="../index.html">HDF5 documents and links</a> <br>
<a href="../H5.intro.html">Introduction to HDF5</a> <br>
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</td>
<td valign=top align=right>
<a href="http://www.hdfgroup.org/HDF5/doc1.6/UG/UG_frame.html">HDF5 User's Guide</a> <br>
<a href="../RM_H5Front.html">HDF5 Reference Manual</a> <br>
<a href="../ADGuide.html">HDF5 Application Developer's Guide</a> <br>
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</center>
<hr>
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<address>
The HDF Group Help Desk: <img src="../Graphics/help.png" align=top height=16>
<br>
Describes HDF5 Release 1.6.10, November 2009
</address>
<!-- #EndLibraryItem --><!-- Created: Spring 1999 -->
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Last modified: 30 October 2009
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