HDF5 Software Changes from Release to Release

Functions with Changed Syntax

C function:

H5Fget_obj_count

ssize_t H5Fget_obj_count( hid_t file_id, unsigned int types )

H5Fget_obj_ids

ssize_t H5Fget_obj_ids( hid_t file_id, unsigned int types,
        size_t max_objs, hid_t *obj_id_list )

Tools with Changed Interface or Behavior

h5repack and h5diff

The standard command-line syntax of both tools has been changed to parallel that of h5dump. The new syntax of each is as follows:

     h5repack [OPTIONS] file1 file2

     h5diff [OPTIONS] file1 file2 [object1 [object2]]

In each case, the old syntax remains available (though undocumented) to avoid breaking existing scripts.

h5diff

h5diff now returns 1 if the files differ in structure, i.e., if the file graphs differ by any object.

The tool’s error return code has been changed to 2.

h5repack

The following new options control the addition of user block data to an existing HDF5 file:

-u U --ublock=U		Specifies the name of the file containing the user block data to be added.
-b B --block=B		Specifies the size of the block to be added.

The following new options set parameters governing the tool’s use of H5Pset_alignment:

-t T --threshold=T		Specifies the threshold value for H5Pset_alignment.
-a A --alignment=A		Specifies the alignment value for H5Pset_alignment.

h5repack now supports multiple instances of the '-f' or '--filter' option, allowing the use of multiple I/O filters with an object.

With no change in the command-line syntax, h5repack now retains an existing userblock when repacking an HDF5 file.

h5import

The floating point format flag TEXTFPE, for scientific notation, has been deprecated. The flag TEXTFP, which accepts scientific notation, should be used instead.

h5import now imports string data with the STR keyword in the INPUT-CLASS configuration field.

h5dump

The new '-m T' or '--format T' option enables a user-defined formatting string for printing floating-point numbers.

With no change in the command-line syntax, h5dump now prints a compression ratio when compression filters are in use.

Deprecated Functions

              H5Pset_preserve
              H5Pget_preserve
        

The original role of these functions is now part of the core HDF5 Library functionality.

Function with Changed Syntax

C function:

H5Sselect_elements

herr_t H5Sselect_elements( hid_t space_id, H5S_seloper_t op,
        size_t num_elements, const hsize_t *coord )

(This syntax change was listed on 10 September 2008, several months after Release 1.6.7.)

Stream I/O Driver Removed

While the stream driver is no longer distributed by The HDF Group, it will be made available as a source code distribution from http://hdf5-addons.origo.ethz.ch/. An integration mechanism will be developed and instructions for using the driver with HDF5 will be posted on that site.

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.

Tools with Changed Options and/or Behavior

The following tools have changed in this release; these changes are documented on the Tools page of the HDF5 Reference Manual.
 

h5repack:
A new -n option allows the user to specify that a new file created by h5repack will use native datatypes. The default behavior is to use the original file datatypes.

-n

Use native HDF5 datatypes when repacking. (Default behavior is to use the original file datatypes.)

Note that the default behavior of this tool has changed; prior to Release 1.6.6, h5repack generated files only with native datatypes.

h5dump:
This tool includes a new -b option for binary output.

-b B   or --binary=B

Output dataset to a binary file using the datatype specified by B. B must have one of the following values:      LE        Little-endian      BE        Big-endian      MEMORY    Memory datatype      FILE      File datatype Recommended usage is with the -d and -o options.

New Functions and Tools

C functions and

Fortran subroutines:

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.

 

High Level C APIs:

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 http://hdf.ncsa.uiuc.edu/HDF5/hdf5_hl/doc/RM_hdf5hl.html

 

C++ wrappers:

void PropList::copyProp(PropList& dest, const char* name) const

void PropList::copyProp(PropList& dest, const string& name) const

string CommonFG::getComment(const string& name) const

void CommonFG::removeComment(const char* name) const

void CommonFG::removeComment(const string& name) const

hsize_t Attribute::getStorageSize() const

void Attribute::close()

void DataSet::close()

void DataSpace::close()

void DataType::close()

void H5File::close()

void Group::close()

void PropList::close()

H5T_order_t AtomType::getOrder() const

void H5Object::renameAttr(const char* oldname, const char* newname) const

void H5Object::renameAttr(const string& oldname, const string& newname) const

string CommonFG::getObjnameByIdx(hsize_t idx) const

ArrayType AbstractDs::getArrayType() const

VarLenType AbstractDs::getVarLenType() const

ArrayType CommonFG::openArrayType(const char* name) const

ArrayType CommonFG::openArrayType(const string& name) const

VarLenType CommonFG::openVarLenType(const char* name) const

VarLenType CommonFG::openVarLenType(const string& name) const

ArrayType CompType::getMemberArrayType(unsigned member_num) const

VarLenType CompType::getMemberVarLenType(unsigned member_num) const

 

Functions with New or Changed Symbols or Fixed Values

C functions:

H5Fget_obj_count

H5F_OBJ_LOCAL has been added as a qualifier on the types of objects to be counted. H5F_OBJ_LOCAL restricts the search to objects opened through current file identifier.

H5Tset_tag

The H5T_OPAQUE_TAG_MAX macro constant, specifying the maximum size of an opaque datatype tag, was added in H5Tpublic.h.

Functions with Changed Syntax

New Functions and Tools

C functions and

Fortran subroutines:

HDF5 Release 1.6.4 "Bugfix Release"; there are no new C APIs or Fortran subroutines.

 

High Level C APIs:

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 http://hdf.ncsa.uiuc.edu/HDF5/hdf5_hl/doc/RM_hdf5hl.html

The HL library, libhdf5_hl.a(so), is built and installed by default but can be disabled with the --disable-hl configure flag.

 

Tools:

A new pair of tools, h5jam and h5unjam, is available to manage user blocks in HDF5 files. See their entry in the HDF5 Reference Manual.

Deleted Functions

 

C++ wrappers:

The C++ wrappers now rely on the C library's reference counting in place of the class RefCounter, which existed before the C mechanism was available. RefCounter has therefore been removed.

Functions with Changed Syntax

C functions:

H5Pget_version

herr_t H5Pget_version(hid_t plist_id, unsigned *boot/*out*/,
unsigned *freelist/*out*/, unsigned *stab/*out*/, unsigned *shhdr/*out*/)

H5Pset_sym_k

H5Pset_sym_k(hid_t plist_id, unsigned ik, unsigned lk)

H5Pget_sym_k

H5Pget_sym_k(hid_t plist_id, unsigned *ik/*out*/, unsigned *lk/*out*/)

H5Pset_istore_k

herr_t H5Pset_istore_k(hid_t plist_id, unsigned ik)

H5Pget_istore_k

herr_t H5Pget_istore_k(hid_t plist_id, unsigned *ik/*out*/)

H5Pget_external

herr_t H5Pget_external(hid_t plist_id, unsigned idx, size_t name_size,
char *name/*out*/, off_t *offset/*out*/, hsize_t *size/*out*/)

H5Pget_filter

H5Z_filter_t H5Pget_filter(hid_t plist_id, unsigned filter,
unsigned int *flags/*out*/, size_t *cd_nelmts/*out*/,
unsigned cd_values[]/*out*/, unsigned int *flags/*out*/,
size_t namelen, char name[])

H5Sselect_hyperslab

herr_t H5Sselect_hyperslab(hid_t space_id, H5S_seloper_t op,
const hsize_t start[], const hsize_t _stride[], const hsize_t count[],
const hsize_t _block[])

H5Sselect_elements

herr_t H5Sselect_elements(hid_t space_id, H5S_seloper_t op,
size_t num_elemn, const hsize_t **coord)

H5Tget_member_name

char *H5Tget_member_name(hid_t type_id, unsigned membno)

H5Tget_member_offset

size_t H5Tget_member_offset(hid_t type_id, unsigned membno)

H5Tget_member_class

H5T_class_t H5Tget_member_class(hid_t type_id, unsigned membno)

H5Tget_member_type

hid_t H5Tget_member_type(hid_t type_id, unsigned membno)

H5Tget_member_value

herr_t H5Tget_member_value(hid_t type_id, unsigned membno,
void *value/*out*/)

H5Diterate is affected by a similar change in the syntax of H5D_operator_t.

herr_t (*H5D_operator_t)(void *elem, hid_t type_id, unsigned ndim,
const hsize_t *point, void *operator_data)

Fortran subroutines:

h5sselect_hyperslab_f

SUBROUTINE h5sselect_hyperslab_f(space_id, operator, start, count, &
hdferr, stride, block)

h5sselect_elements_f

SUBROUTINE h5sselect_elements_f(space_id, operator, rank, &
num_elements, coord, hdferr)

C++ wrappers:

FileCreatPropList::getVersion

void FileCreatPropList::getVersion( unsigned& super, unsigned& freelist,
unsigned& stab, unsigned& shhdr) const

FileCreatPropList::setSymk

void FileCreatPropList::setSymk( unsigned ik, unsigned lk ) const

FileCreatPropList::getSymk

void FileCreatPropList::getSymk( unsigned& ik, unsigned& lk ) const

FileCreatPropList::setIstorek

void FileCreatPropList::setIstorek( unsigned ik ) const

FileCreatPropList::getIstorek

unsigned FileCreatPropList::getIstorek() const

DSetCreatPropList::getExternal

void DSetCreatPropList::getExternal( unsigned idx, size_t name_size,
char* name, off_t& offset, hsize_t& size ) const

DSetCreatPropList::getFilter

H5Z_filter_t DSetCreatPropList::getFilter( ine filter_number,
unsigned int &flags, size_t &cd_nelmts, unsigned int* cd_values,
size_t namelen, char name[] ) const

DataSpace::selectHyperslab

void DataSpace::selectHyperslab( H5S_seloper_t op, const hsize_t *count,
const hsize_t *start, const hsize_t *stride, const hsize_t *block ) const

DataSpace::selectElements

void DataSpace::selectElements( H5S_seloper_t op,
const size_t num_elements, const hsize_t *coord[ ] ) const

CompType::getMemberName

string CompType::getMemberName( unsigned member_num ) const

CompType::getMemberOffset

size_t CompType::getMemberOffset( unsigned member_num ) const

CompType::getMemberClass

H5T_class_t CompType::getMemberClass( unsigned member_num ) const

EnumType::getMemberValue

void EnumType::getMemberValue( unsigned member_no, void *value ) const

(These lists of syntax changes were added on 31 March and 5 April 2005, shortly after Release 1.6.4.)

Deleted Constants

• Error codes
  • H5E_CANTALLOC
  • H5E_CANTCHANGE
  • H5E_CANTRECV
  • H5E_CANTSENDMDATA
  • H5E_FPHDF5
• An internal identifier category
  • H5I_TEMPBUF

Changed Library Configuration

HDF5 Library configuration has been upgraded from GNU autoconf 2.53 to autoconf 2.59.

New Functions and Tools

C functions:

The following C functions are new for Release 1.6.3 and are documented in the HDF5 Reference Manual.

H5Fget_name	ssize_t H5Fget_name (hid_t obj_id, char *name, size_t size) See entry.
H5Fget_filesize	herr_t H5Fget_filesize (hid_t file_id, hsize_t * size) See entry.
H5Iget_file_id	hid_t H5Iget_file_id (hid_t obj_id) See entry.
H5Premove_filter	herr_t H5Premove_filter (hid_t obj_id, H5Z_filter_t filter) See entry.
H5Zget_filter_info	herr_t H5Zget_filter_info (H5Z_filter_t filter, unsigned int * flags) See entry.

 

Fortran subroutines:

The following Fortran90 subroutines are new for Release 1.6.3 and are documented in the HDF5 Reference Manual.

New Fortran90 subroutines corresponding to the new C functions listed above:
h5fget_name_f     h5fget_filesize_f	h5iget_file_id_f     h5premove_filter_f     h5zget_filter_info_f

New Fortran90 subroutines corresponding to C functions from prior releases:     None

 

C++ wrappers:

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.

All available C++ elements are now documented in the HDF5 C++ API Reference Manual. (The HDF5 C++ API Reference Manual is also a new addition in this release.)

 

Tools:

The following tools are new for Release 1.6.3 and are documented on the Tools page of the HDF5 Reference Manual.

h5new_tool is designed to do whatever this sentence says. (Clearly, this is a placeholder entry that should be removed before release.)

 

The following tool was in Release 1.6.2 but was not included in formal documentation. A full description is now included on the Tools page of the HDF5 Reference Manual.

h5repack is designed to copy an HDF5 file to a new file with or without compression and/or chunking.

Deleted Functions

 

C++ wrapper:

CompType::getMemberDims

Functions with Changed Syntax

C functions:

H5Pset_fapl_multi

The prototype for this function was changed from:

• herr_t H5Pset_fapl_multi (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)
  

to:

• herr_t H5Pset_fapl_multi (hid_t fapl_id, const H5FD_mem_t * memb_map, const hid_t * memb_fapl, const char * const * memb_name, const haddr_t * memb_addr, hbool_t relax)
  

This change should not appreciably affect application programs.

H5Tconvert

The prototype for this function was changed from:

• herr_t H5Tconvert (hid_t src_id, hid_t dst_id, hsize_t nelmts, void * buf, void * background, hid_t plist_id)
  

to:

• herr_t H5Tconvert (hid_t src_id, hid_t dst_id, size_t nelmts, void * buf, void * background, hid_t plist_id)
  

This was changed to prevent overflows when hsize_t and size_t 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 H5Tregister and H5Tunregister described below.

H5Tregister and H5Tunregister

These two routines are affected by the change to the H5T_conv_t typedef (described below) and may require application registered datatype conversion routines to be modified to conform to the changed typedef.

 

C++ wrappers:

H5::Exception and its subclasses

Constructors used by H5::Exception and its subclasses that were previously overloaded to take char pointers have been removed. Constructors that passed in a reference of string have been changed to pass by value. In addition, the default value of the detailed message has been changed from 0/NULL to DEFAULT_MSG (meaning "No detailed information provided").

 

DSetCreatPropList::setLayout

The prototype for DSetCreatPropList::setLayout has been changed: the first parameter has been removed.

Constants with Changed Values

C API:

H5T_conv_t

This function pointer typedef's definition has been changed from:

• typedef herr_t (*H5T_conv_t) (hid_t src_id, hid_t dst_id, H5T_cdata_t * cdata, hsize_t nelmts, size_t buf_stride, size_t bkg_stride, void * buf, void * bkg, hid_t plist_id)
  

to:

• typedef herr_t (*H5T_conv_t) (hid_t src_id, hid_t dst_id, H5T_cdata_t * cdata, size_t nelmts, size_t buf_stride, size_t bkg_stride, void * buf, void * bkg, hid_t plist_id)
  

This was changed to prevent overflows when hsize_t and size_t types are different sizes. Application code may need to be modified to take this into account.

New Functions and Tools

C functions:

The following C functions are new for Release 1.6.2 and are documented in the HDF5 Reference Manual.

H5Iget_ref	int H5Iget_ref (hid_t obj_id) See entry.
H5Iinc_ref	int H5Iinc_ref (hid_t obj_id) See entry.
H5Idec_ref	int H5Idec_ref (hid_t obj_id) See entry.

 

Fortran subroutines:

The following Fortran90 subroutines are new for Release 1.6.2 and are documented in the HDF5 Reference Manual.

Corresponding to the new C functions listed above:     h5iget_ref_f     h5iinc_ref_f     h5idec_ref_f

 

Tools:

The following tools are new for Release 1.6.2 and are documented on the Tools page of the HDF5 Reference Manual.

h5pcc is designed to aid in the compilation of C applications that employ the HDF5 Library.

h5pfc is designed to aid in the compilation of Fortran90 applications that employ the HDF5 Library.

Deleted Functions

Functions with Changed Syntax

Constants with Changed Values

New Functions and Tools

C functions:

The following C function is new for Release 1.6.1 and is documented in the HDF5 Reference Manual.

H5Fget_freespace

hssize_t H5Fget_freespace (hid_t file_id) See entry.

 

Fortran subroutines

The following Fortran90 subroutines were new for Release 1.6.0 but were not documented. They are now included in the HDF5 Reference Manual.

h5get_fapl_mpiposix_f	h5pget_fapl_mpiposix_f(prp_id, comm, use_gpfs, hdferr) See entry.
h5set_fapl_mpiposix_f	h5pset_fapl_mpiposix_f(prp_id, comm, use_gpfs, hdferr) See entry.

 

Tools:

Release 1.6.1 contains no new tools.

Deleted Functions

Functions with Changed Syntax

C functions:

H5Gget_obj_info

The H5G_stat_t struct contains two new fields.
This change will be transparent to existing applications, though those calling H5Gget_obj_info will have to be recompiled before linking with the updated library.

 

Fortran90 subroutines:

h5pset_cache_f

The rdcc_nbytes parameter has changed from INTEGER to INTEGER(SIZE_T) to better match the C API and the h5pget_cache_f subroutine.

Constants with Changed Values

New Functions and Tools

The following functions are new for Release 1.6.0 and are included in the HDF5 Reference Manual.

H5set_free_list_limits	herr_t H5set_free_list_limits (int reg_global_lim, int reg_list_lim, int arr_global_lim, int arr_list_lim, int blk_global_lim, int blk_list_lim)
H5Dget_offset	hsize_t H5Dget_offset (hid_t dset_id)
H5Dget_space_status	hid_t H5Dget_space_status (hid_t dset_id, H5D_space_status_t *status)
H5Fget_obj_ids	int H5Fget_obj_ids (hid_t file_id, unsigned int types, int max_objs, hid_t *obj_id_list)
H5Fget_vfd_handle	herr_t H5Fget_vfd_handle (hid_t file_id, hid_t fapl_id, void *file_handle)
H5Gget_num_objs	herr_t H5Gget_num_objs (hid_t loc_id, hsize_t* num_obj)
H5Gget_objname_by_idx	ssize_t H5Gget_objname_by_idx (hid_t group_id, hsize_t idx, char *name, size_t* size)
H5Gget_objtype_by_idx	int H5Gget_objtype_by_idx (hid_t group_id, hsize_t idx)
H5Iget_name	ssize_t H5Iget_name (hid_t obj_id, char *name, size_t size)
H5Pall_filters_avail	htri_t H5Pall_filters_avail (hid_t dcpl_id)
H5Pfill_value_defined	herr_t H5Pfill_value_defined (hid_t plist_id, H5D_fill_value_t *status)
H5Pget_alloc_time	herr_t H5Pget_alloc_time (hid_t plist_id, H5D_alloc_time_t *alloc_time)
H5Pget_edc_check	H5Z_EDC_t H5Pget_edc_check (hid_t plist)
H5Pget_family_offset	herr_t H5Pget_family_offset (hid_t fapl_id, hsize_t *offset)
H5Pget_fapl_mpiposix	herr_t H5Pget_fapl_mpiposix (hid_t fapl_id, MPI_Comm *comm)
H5Pget_fclose_degree	herr_t H5Pget_fclose_degree(hid_t fapl_id, H5F_close_degree_t *fc_degree) (This item corrected 14 September 2004.)
H5Pget_fill_time	herr_t H5Pget_fill_time (hid_t plist_id, H5D_fill_time_t *fill_time)
H5Pget_filter_by_id	herr_t H5Pget_filter_by_id (hid_t plist_id, H5Z_filter_t filter, unsigned int *flags, size_t *cd_nelmts, unsigned int cd_values[], size_t namelen, char *name[])
H5Pget_hyper_vector_size	herr_t H5Pget_hyper_vector_size (hid_t dxpl_id, size_t *vector_size)
H5Pget_multi_type	herr_t H5Pget_multi_type (hid_t fapl_id, H5FD_mem_t *type)
H5Pmodify_filter	herr_t H5Pmodify_filter (hid_t plist, H5Z_filter_t filter, unsigned int flags, size_t cd_nelmts, const unsigned int cd_values[])
H5Pset_alloc_time	herr_t H5Pset_alloc_time (hid_t plist_id, H5D_alloc_time_t alloc_time)
H5Pset_edc_check	herr_t H5Pset_edc_check (hid_t plist, H5Z_EDC_t check)
H5Pset_family_offset	herr_t H5Pset_family_offset (hid_t fapl_id, hsize_t offset)
H5Pset_fapl_mpiposix	herr_t H5Pset_fapl_mpiposix (hid_t fapl_id, MPI_Comm comm)
H5Pset_fclose_degree	herr_t H5Pset_fclose_degree(hid_t fapl_id, H5F_close_degree_t fc_degree) (This item corrected 14 September 2004.)
H5Pset_fill_time	herr_t H5Pset_fill_time (hid_t plist_id, H5D_fill_time_t fill_time)
H5Pset_filter	herr_t H5Pset_filter (hid_t plist, H5Z_filter_t filter, unsigned int flags, size_t cd_nelmts, const unsigned int cd_values[])
H5Pset_filter_callback	herr_t H5Pset_filter_callback (hid_t plist, H5Z_filter_func_t func, void *op_data)
H5Pset_fletcher32	herr_t H5Pset_fletcher32 (hid_t plist)
H5Pset_hyper_vector_size	herr_t H5Pset_hyper_vector_size (hid_t dxpl_id, size_t vector_size)
H5Pset_multi_type	herr_t H5Pset_multi_type (hid_t fapl_id, H5FD_mem_t type)
H5Pset_shuffle	herr_t H5Pset_shuffle (hid_t plist_id)
H5Pset_szip	herr_t H5Pset_szip (hid_t plist, unsigned int options_mask, unsigned int pixels_per_block)
H5Rget_object_type	int H5Rget_object_type (hid_t id, void *ref)
H5Sget_select_type	H5S_sel_type H5Sget_select_type (hid_t space_id)
H5Tdetect_class	htri_t H5Tdetect_class (hid_t dtype_id, H5T_class_t dtype_class)
H5Tget_native_type	hid_t H5Tget_native_type (hid_t type_id, H5T_direction_t direction)
H5Tis_variable_str	htri_t H5Tis_variable_str (hid_t dtype_id)
H5Zfilter_avail	herr_t H5Zfilter_avail (H5Z_filter_t filter)
H5Zunregister	herr_t H5Zunregister (H5Z_filter_t filter)

 

The following tools are new for Release 1.6.0 and are included in the HDF5 Reference Manual.

h5diff

h5import

h5fc

h5c++

h5perf

h5redeploy

Deleted Functions

H5Pset_hyper_cache
H5Pget_hyper_cache

H5Rget_object_type

The above functions will eventually be removed from the HDF5 distribution and from the HDF5 Reference Manual.

Functions with Changed Syntax

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 H5_WANT_H5_V1_4_COMPAT, is not enabled in the binaries distributed by NCSA, and will eventually be removed from the HDF5 distribution.

Constants with Changed Values

C Library

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*/);

Fortran90 Library

C Library

H5Pget_small_data_block_size
H5Pset_small_data_block_size
H5Tget_member_index

Fortran90 Library

C Library

H5Pset_fapl_dpss 

Fortran90 Library

C Library

Fortran90 Library

h5aread_f(attr_id, memtype_id,  buf, dims, hdferr)
h5awrite_f(attr_id, memtype_id,  buf, dims, hdferr)
h5dread_f(dset_id, mem_type_id, buf, dims, hdferr, mem_space_id, &
           file_space_id, xfer_prp)
h5dwrite_f(dset_id, mem_type_id, buf, dims, hdferr, mem_space_id, &
           file_space_id, xfer_prp)

New Functions

herr_t H5Dvlen_get_buf_size (hid_t dataset_id, hid_t type_id, 
           hid_t space_id, hsize_t *size);
herr_t H5Epush (const char *file, const char *func,
           unsigned line, H5E_major_t maj, H5E_minor_t min, 
           const char *str);
hid_t H5Pget_driver (hid_t plist_id);
void *H5Pget_driver_info (hid_t plist_id);
herr_t H5Pget_dxpl_mpio (hid_t dxpl_id, 
           H5FD_mpio_xfer_t *xfer_mode/*out*/);
herr_t H5Pget_dxpl_multi (hid_t dxpl_id, 
           hid_t *memb_dxpl/*out*/);
herr_t H5Pget_fapl_core (hid_t fapl_id, size_t *increment/*out*/,
           hbool_t *backing_store/*out*/) 
herr_t H5Pget_fapl_family (hid_t fapl_id, 
           hsize_t *memb_size/*out*/, hid_t *memb_fapl_id/*out*/);
herr_t H5Pget_fapl_mpio (hid_t fapl_id, MPI_Comm *comm/*out*/,
           MPI_Info *info/*out*/);
herr_t H5Pget_fapl_multi (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 H5Pget_fapl_stream (hid_t fapl_id,
           H5FD_stream_fapl_t *fapl /*out*/ );
herr_t H5Pget_meta_block_size (hid_t fapl_id, 
           hsize_t *size/*out*/);
herr_t H5Pget_sieve_buf_size (hid_t fapl_id, 
           hsize_t *size/*out*/);
herr_t H5Pset_driver (hid_t plist_id, hid_t driver_id,
           const void *driver_info);
herr_t H5Pset_dxpl_mpio (hid_t dxpl_id, 
           H5FD_mpio_xfer_t xfer_mode);
herr_t H5Pset_dxpl_multi (hid_t dxpl_id, 
           const hid_t *memb_dxpl);
herr_t H5Pset_fapl_core (hid_t fapl_id, size_t increment, 
           hbool_t backing_store)
herr_t H5Pset_fapl_family (hid_t fapl_id, hsize_t memb_size,
           hid_t memb_fapl_id);
herr_t H5Pset_fapl_log (hid_t fapl_id, char *logfile, 
           int verbosity);
herr_t H5Pset_fapl_mpio (hid_t fapl_id, MPI_Comm comm, 
           MPI_Info info);
herr_t H5Pset_fapl_multi (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 H5Pset_fapl_sec2 (hid_t fapl_id);
herr_t H5Pset_fapl_split (hid_t fapl, const char *meta_ext,
           hid_t meta_plist_id, const char *raw_ext,
           hid_t raw_plist_id);
herr_t H5Pset_fapl_stdio (hid_t fapl_id);
herr_t H5Pset_fapl_stream (hid_t fapl_id,
           H5FD_stream_fapl_t *fapl);
herr_t H5Pset_meta_block_size(hid_t fapl_id, hsize_t size);
herr_t H5Pset_sieve_buf_size(hid_t fapl_id, hsize_t size);
hid_t H5Tarray_create (hid_t base, int rank, const hsize_t dims[], 
           const int perm[])
int H5Tget_array_dims (hid_t adtype_id, hsize_t *dims[], int *perm[])
int H5Tget_array_ndims (hid_t adtype_id)

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 HDF5 Reference Manual.

herr_t H5Pget_fapl_dpss (hid_t fapl_id);
herr_t H5Pget_fapl_gass (hid_t fapl_id, GASS_Info *info/*out*/);
herr_t H5Pget_fapl_srb (hid_t fapl_id, SRB_Info *info);
herr_t H5Pset_fapl_dpss (hid_t fapl_id);
herr_t H5Pset_fapl_gass (hid_t fapl_id, GASS_Info info);
herr_t H5Pset_fapl_srb (hid_t fapl_id, SRB_Info info);

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 List of VFL Functions document in the HDF5 Technical Notes. They are described in detail only in the source code and do not appear in the HDF5 Reference Manual.

haddr_t H5FDalloc (H5FD_t *file, H5FD_mem_t type, 
          hsize_t size);
herr_t H5FDclose (H5FD_t *file);
int H5FDcmp (const H5FD_t *f1, const H5FD_t *f2);
herr_t H5FDflush (H5FD_t *file);
herr_t H5FDfree (H5FD_t *file, H5FD_mem_t type, 
          haddr_t addr, hsize_t size);
haddr_t H5FDget_eoa (H5FD_t *file);
haddr_t H5FDget_eof (H5FD_t *file);
H5FD_t *H5FDopen (const char *name, unsigned flags, 
          hid_t fapl_id, haddr_t maxaddr);
int H5FDquery (const H5FD_t *f, unsigned long *flags);
herr_t H5FDread (H5FD_t *file, hid_t dxpl_id, haddr_t addr, 
          hsize_t size, void *buf/*out*/);
haddr_t H5FDrealloc (H5FD_t *file, H5FD_mem_t type, 
          haddr_t addr, hsize_t old_size, hsize_t new_size);
hid_t H5FDregister (const H5FD_class_t *cls);
herr_t H5FDset_eoa (H5FD_t *file, haddr_t eof);
herr_t H5FDunregister (hid_t driver_id);
herr_t H5FDwrite (H5FD_t *file, H5FD_mem_t type, 
          hid_t dxpl_id, haddr_t addr, hsize_t size, 
          const void *buf);

Deleted Functions

H5Pget_core
H5Pget_driver
H5Pget_family
H5Pget_mpi
H5Pget_sec2
H5Pget_split
H5Pget_stdio
H5Pget_xfer

H5Pset_core
H5Pset_family
H5Pset_mpi
H5Pset_sec2
H5Pset_split
H5Pset_stdio
H5Pset_xfer

H5RAclose
H5RAcreate
H5RAopen
H5RAread
H5RAwrite
H5Tget_member_dims
H5Tinsert_array

Functions with Changed Syntax

Constants with Changed Values

H5Tinsert_array

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);
}

RELEASE.txt

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."

HISTORY.txt

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.