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HDF5  1.15.0
API Reference
 
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Fortran Datasets (H5D) Interface

Detailed Description

See also
Datasets (H5D), C-API
HDF5 Datasets, User Guide

Modules

module  h5d
 This module contains Fortran interfaces for H5D functions.
 

Functions/Subroutines

subroutine h5dcreate_f (loc_id, name, type_id, space_id, dset_id, hdferr, dcpl_id, lcpl_id, dapl_id)
 Creates a dataset at the specified location.
 
subroutine h5dcreate_async_f (loc_id, name, type_id, space_id, dset_id, es_id, hdferr, dcpl_id, lcpl_id, dapl_id, file, func, line)
 Asynchronously creates a dataset at the specified location.
 
subroutine h5dopen_f (loc_id, name, dset_id, hdferr, dapl_id)
 Opens an existing dataset.
 
subroutine h5dopen_async_f (loc_id, name, dset_id, es_id, hdferr, dapl_id, file, func, line)
 Asynchronously opens an existing dataset.
 
subroutine h5dclose_f (dset_id, hdferr)
 Closes a dataset.
 
subroutine h5dclose_async_f (dset_id, es_id, hdferr, file, func, line)
 Asynchronously closes a dataset.
 
subroutine h5dget_type_f (dataset_id, datatype_id, hdferr)
 Returns an identifier for a copy of the datatype for a dataset.
 
subroutine h5dset_extent_f (dataset_id, fsize, hdferr)
 Extends a dataset with unlimited dimension.
 
subroutine h5dset_extent_async_f (dataset_id, fsize, es_id, hdferr, file, func, line)
 Asynchronously extends a dataset with unlimited dimension.
 
subroutine h5dget_create_plist_f (dataset_id, plist_id, hdferr)
 Returns an identifier for a copy of the dataset creation property list for a dataset.
 
subroutine h5dget_storage_size_f (dataset_id, size, hdferr)
 Returns the amount of storage requires by a dataset.
 
subroutine h5dvlen_get_max_len_f (dataset_id, type_id, space_id, len, hdferr)
 Returns maximum length of the VL array elements.
 
subroutine h5dget_space_status_f (dset_id, flag, hdferr)
 Returns the status of data space allocation.
 
subroutine h5dcreate_anon_f (loc_id, type_id, space_id, dset_id, hdferr, dcpl_id, dapl_id)
 Creates a dataset in a file without linking it into the file structure.
 
subroutine h5dread_vl_f (dset_id, mem_type_id, buf, dims, len, hdferr, mem_space_id, file_space_id, xfer_prp)
 Reads variable-length data. F2003 API h5dread_f should be used instead.
 
subroutine h5dwrite_vl_f (dset_id, mem_type_id, buf, dims, len, hdferr, mem_space_id, file_space_id, xfer_prp)
 Writes variable-length data. F2003 API h5dwrite_f should be used instead.
 
subroutine h5dget_offset_f (dset_id, offset, hdferr)
 Returns dataset address in file.
 
subroutine h5dget_space_f (dataset_id, dataspace_id, hdferr)
 Returns an identifier for a copy of the dataspace for a dataset.
 
subroutine h5dget_space_async_f (dataset_id, dataspace_id, es_id, hdferr, file, func, line)
 Asynchronously returns an identifier for a copy of the dataspace for a dataset.
 
subroutine h5dget_access_plist_f (dset_id, plist_id, hdferr)
 Returns a copy of the dataset creation property list.
 
subroutine h5dvlen_reclaim_f (type_id, space_id, plist_id, buf, hdferr)
 Reclaims VL datatype memory buffers.
 
subroutine h5dread_async_f (dset_id, mem_type_id, buf, es_id, hdferr, mem_space_id, file_space_id, xfer_prp, file, func, line)
 Asynchronously reads raw data from a dataset into a buffer.
 
subroutine h5dwrite_async_f (dset_id, mem_type_id, buf, es_id, hdferr, mem_space_id, file_space_id, xfer_prp, file, func, line)
 Asynchronously writes raw data from a buffer to a dataset.
 
subroutine h5dwrite_f (dset_id, mem_type_id, buf, hdferr, mem_space_id, file_space_id, xfer_prp)
 Writes raw data from a buffer to a dataset.
 
subroutine h5dread_f (dset_id, mem_type_id, buf, hdferr, mem_space_id, file_space_id, xfer_prp)
 Reads raw data from a dataset into a buffer (Passes Pointer).
 
subroutine h5dwrite_f___f90_version (dset_id, mem_type_id, buf, dims, hdferr, mem_space_id, file_space_id, xfer_prp)
 There is no direct Fortran90 counterpart for the C function H5Dwrite. Instead, that functionality is provided by two Fortran90 subroutines:
 
subroutine h5dread_f___f90_version (dset_id, mem_type_id, buf, dims, hdferr, mem_space_id, file_space_id, xfer_prp)
 There is no direct Fortran90 counterpart for the C function H5Dread. Instead, that functionality is provided by two Fortran90 subroutines:
 
subroutine h5dfill_f (fill_value, space_id, buf, hdferr)
 Fills dataspace elements with a fill value in a memory buffer. Only INTEGER, CHARACTER, REAL and DOUBLE PRECISION datatypes of the fillvalues and buffers are supported. Buffer and fillvalue are assumed to have the same datatype. Only one-dimesional buffers are supported.
 
subroutine h5dfill_f (fill_value, fill_type_id, buf, buf_type_id, space_id, hdferr)
 Fills dataspace elements with a fill value in a memory buffer.
 
subroutine h5dread_multi_f (count, dset_id, mem_type_id, mem_space_id, file_space_id, buf, hdferr, xfer_prp)
 Reads data from a file to memory buffers for multiple datasets.
 
subroutine h5dwrite_multi_f (count, dset_id, mem_type_id, mem_space_id, file_space_id, buf, hdferr, xfer_prp)
 Writes data in memory to a file for multiple datasets.
 
subroutine h5dread_chunk_f (dset_id, offset, filters, buf, hdferr, dxpl_id)
 Reads a raw data chunk directly from a dataset in a file into a buffer.
 
subroutine h5dwrite_chunk_f (dset_id, filters, offset, data_size, buf, hdferr, dxpl_id)
 Writes a raw data chunk from a buffer directly to a dataset in a file.
 

Variables

integer h5d_compact_f
 H5D_COMPACT.
 
integer h5d_contiguous_f
 H5D_CONTIGUOUS.
 
integer h5d_chunked_f
 H5D_CHUNKED.
 
integer h5d_alloc_time_error_f
 H5D_ALLOC_TIME_ERROR.
 
integer h5d_alloc_time_default_f
 H5D_ALLOC_TIME_DEFAULT.
 
integer h5d_alloc_time_early_f
 H5D_ALLOC_TIME_EARLY.
 
integer h5d_alloc_time_late_f
 H5D_ALLOC_TIME_LATE.
 
integer h5d_alloc_time_incr_f
 H5D_ALLOC_TIME_INCR.
 
integer h5d_space_sts_error_f
 H5D_SPACE_STS_ERROR.
 
integer h5d_space_sts_not_allocated_f
 H5D_SPACE_STS_NOT_ALLOCATED.
 
integer h5d_space_sts_part_allocated_f
 H5D_SPACE_STS_PART_ALLOCATED.
 
integer h5d_space_sts_allocated_f
 H5D_SPACE_STS_ALLOCATED.
 
integer h5d_fill_time_error_f
 H5D_FILL_TIME_ERROR.
 
integer h5d_fill_time_alloc_f
 H5D_FILL_TIME_ALLOC.
 
integer h5d_fill_time_never_f
 H5D_FILL_TIME_NEVER.
 
integer h5d_fill_value_error_f
 H5D_FILL_VALUE_ERROR.
 
integer h5d_fill_value_undefined_f
 H5D_FILL_VALUE_UNDEFINED.
 
integer h5d_fill_value_default_f
 H5D_FILL_VALUE_DEFAULT.
 
integer h5d_fill_value_user_defined_f
 H5D_FILL_VALUE_USER_DEFINED.
 
integer(size_t) h5d_chunk_cache_nslots_dflt_f
 H5D_CHUNK_CACHE_NSLOTS_DEFAULT.
 
integer(size_t) h5d_chunk_cache_nbytes_dflt_f
 H5D_CHUNK_CACHE_NBYTES_DEFAULT.
 
integer h5d_chunk_cache_w0_dflt_f
 H5D_CHUNK_CACHE_W0_DEFAULT.
 
integer h5d_mpio_no_collective_f
 H5D_MPIO_NO_COLLECTIVE.
 
integer h5d_mpio_chunk_independent_f
 H5D_MPIO_CHUNK_INDEPENDENT.
 
integer h5d_mpio_chunk_collective_f
 H5D_MPIO_CHUNK_COLLECTIVE.
 
integer h5d_mpio_chunk_mixed_f
 H5D_MPIO_CHUNK_MIXED.
 
integer h5d_mpio_contig_collective_f
 H5D_MPIO_CONTIGUOUS_COLLECTIVE.
 
integer h5d_vds_error_f
 H5D_VDS_ERROR.
 
integer h5d_vds_first_missing_f
 H5D_VDS_FIRST_MISSING.
 
integer h5d_vds_last_available_f
 H5D_VDS_LAST_AVAILABLE.
 
integer h5d_virtual_f
 H5D_VIRTUAL.
 
integer h5d_selection_io_mode_default_f
 H5D_SELECTION_IO_MODE_DEFAULT.
 
integer h5d_selection_io_mode_off_f
 H5D_SELECTION_IO_MODE_OFF.
 
integer h5d_selection_io_mode_on_f
 H5D_SELECTION_IO_MODE_ON.
 
integer h5d_mpio_collective_f
 H5D_MPIO_COLLECTIVE.
 
integer h5d_mpio_set_independent_f
 H5D_MPIO_SET_INDEPENDENT.
 
integer h5d_mpio_datatype_conversion_f
 H5D_MPIO_DATATYPE_CONVERSION.
 
integer h5d_mpio_data_transforms_f
 H5D_MPIO_DATA_TRANSFORMS.
 
integer h5d_mpio_mpi_opt_types_env_var_disabled_f
 H5D_MPIO_MPI_OPT_TYPES_ENV_VAR_DISABLED.
 
integer h5d_mpio_not_simple_or_scalar_dataspaces_f
 H5D_MPIO_NOT_SIMPLE_OR_SCALAR_DATASPACES.
 
integer h5d_mpio_not_contiguous_or_chunked_dataset_f
 H5D_MPIO_NOT_CONTIGUOUS_OR_CHUNKED_DATASET.
 
integer h5d_mpio_parallel_filtered_writes_disabled_f
 H5D_MPIO_PARALLEL_FILTERED_WRITES_DISABLED.
 
integer h5d_mpio_error_while_checking_collective_possible_f
 H5D_MPIO_ERROR_WHILE_CHECKING_COLLECTIVE_POSSIBLE.
 
integer h5d_mpio_no_selection_io_f
 H5D_MPIO_NO_SELECTION_IO.
 
integer h5d_mpio_no_collective_max_cause_f
 H5D_MPIO_NO_COLLECTIVE_MAX_CAUSE.
 
integer h5d_sel_io_disable_by_api_f
 H5D_SEL_IO_DISABLE_BY_API.
 
integer h5d_sel_io_not_contiguous_or_chunked_dataset_f
 H5D_SEL_IO_NOT_CONTIGUOUS_OR_CHUNKED_DATASET.
 
integer h5d_sel_io_contiguous_sieve_buffer_f
 H5D_SEL_IO_CONTIGUOUS_SIEVE_BUFFER.
 
integer h5d_sel_io_no_vector_or_selection_io_cb_f
 H5D_SEL_IO_NO_VECTOR_OR_SELECTION_IO_CB.
 
integer h5d_sel_io_page_buffer_f
 H5D_SEL_IO_PAGE_BUFFER.
 
integer h5d_sel_io_dataset_filter_f
 H5D_SEL_IO_DATASET_FILTER.
 
integer h5d_sel_io_chunk_cache_f
 H5D_SEL_IO_CHUNK_CACHE.
 
integer h5d_sel_io_tconv_buf_too_small_f
 H5D_SEL_IO_TCONV_BUF_TOO_SMALL.
 
integer h5d_sel_io_bkg_buf_too_small_f
 H5D_SEL_IO_BKG_BUF_TOO_SMALL.
 
integer h5d_sel_io_default_off_f
 H5D_SEL_IO_DEFAULT_OFF.
 
integer h5d_mpio_no_selection_io_causes_f
 H5D_MPIO_NO_SELECTION_IO_CAUSES.
 
integer h5d_mpio_no_chunk_optimization_f
 H5D_MPIO_NO_CHUNK_OPTIMIZATION.
 
integer h5d_mpio_link_chunk_f
 H5D_MPIO_LINK_CHUNK.
 
integer h5d_mpio_multi_chunk_f
 H5D_MPIO_MULTI_CHUNK.
 
integer h5d_scalar_io_f
 Scalar (or legacy MPIO) I/O was performed.
 
integer h5d_vector_io_f
 Vector I/O was performed.
 
integer h5d_selection_io_f
 Selection I/O was performed.
 

Function/Subroutine Documentation

◆ h5dclose_async_f()

subroutine h5dclose_async_f ( integer(hid_t), intent(in)  dset_id,
integer(hid_t), intent(in)  es_id,
integer, intent(out)  hdferr,
type(c_ptr), intent(in), optional  file,
type(c_ptr), intent(in), optional  func,
integer, intent(in), optional  line 
)

Asynchronously closes a dataset.

Parameters
dset_idDataset identifier
es_idEvent set identifier
hdferrReturns 0 if successful and -1 if it fails.
filePointer to filename the async subroutine is being called from, filename must be null character terminated
funcPointer to function name the async subroutine is being called in, func must be null character terminated
lineLine number the async subroutine is being called at

See C API: H5Dclose_async()

◆ h5dclose_f()

subroutine h5dclose_f ( integer(hid_t), intent(in)  dset_id,
integer, intent(out)  hdferr 
)

Closes a dataset.

Parameters
dset_idDataset identifier
hdferrReturns 0 if successful and -1 if it fails.

See C API: H5Dclose()

◆ h5dcreate_anon_f()

subroutine h5dcreate_anon_f ( integer(hid_t), intent(in)  loc_id,
integer(hid_t), intent(in)  type_id,
integer(hid_t), intent(in)  space_id,
integer(hid_t), intent(out)  dset_id,
integer, intent(out)  hdferr,
integer(hid_t), intent(in), optional  dcpl_id,
integer(hid_t), intent(in), optional  dapl_id 
)

Creates a dataset in a file without linking it into the file structure.

Parameters
loc_idIdentifier of the file or group within which to create the dataset.
type_idIdentifier of the datatype to use when creating the dataset.
space_idIdentifier of the dataspace to use when creating the dataset.
dset_idDataset identifier.
hdferrReturns 0 if successful and -1 if it fails.
dcpl_idDataset creation property list identifier.
dapl_idDataset access property list identifier.

See C API: H5Dcreate_anon()

◆ h5dcreate_async_f()

subroutine h5dcreate_async_f ( integer(hid_t), intent(in)  loc_id,
character(len=*), intent(in)  name,
integer(hid_t), intent(in)  type_id,
integer(hid_t), intent(in)  space_id,
integer(hid_t), intent(out)  dset_id,
integer(hid_t), intent(in)  es_id,
integer, intent(out)  hdferr,
integer(hid_t), intent(in), optional  dcpl_id,
integer(hid_t), intent(in), optional  lcpl_id,
integer(hid_t), intent(in), optional  dapl_id,
type(c_ptr), intent(in), optional  file,
type(c_ptr), intent(in), optional  func,
integer, intent(in), optional  line 
)

Asynchronously creates a dataset at the specified location.

Parameters
loc_idFile or group identifier
nameDataset name
type_idDataset datatype identifier
space_idDataset dataspace identifier
dset_idDataset identifier
es_idEvent set identifier
hdferrReturns 0 if successful and -1 if it fails.
dcpl_idDataset creation property list
lcpl_idLink creation property list
dapl_idDataset access property list
filePointer to filename the async subroutine is being called from, filename must be null character terminated
funcPointer to function name the async subroutine is being called in, func must be null character terminated
lineLine number the async subroutine is being called at

See C API: H5Dcreate_async()

◆ h5dcreate_f()

subroutine h5dcreate_f ( integer(hid_t), intent(in)  loc_id,
character(len=*), intent(in)  name,
integer(hid_t), intent(in)  type_id,
integer(hid_t), intent(in)  space_id,
integer(hid_t), intent(out)  dset_id,
integer, intent(out)  hdferr,
integer(hid_t), intent(in), optional  dcpl_id,
integer(hid_t), intent(in), optional  lcpl_id,
integer(hid_t), intent(in), optional  dapl_id 
)

Creates a dataset at the specified location.

Parameters
loc_idFile or group identifier
nameDataset name
type_idDataset datatype identifier
space_idDataset dataspace identifier
dset_idDataset identifier
hdferrReturns 0 if successful and -1 if it fails.
dcpl_idDataset creation property list
lcpl_idLink creation property list
dapl_idDataset access property list

See C API: H5Dcreate2()

◆ h5dfill_f() [1/2]

subroutine h5dfill_f ( type(c_ptr), intent(in)  fill_value,
integer(hid_t), intent(in)  fill_type_id,
type(c_ptr), intent(in)  buf,
integer(hid_t), intent(in)  buf_type_id,
integer(hid_t), intent(in)  space_id,
  hdferr 
)

Fills dataspace elements with a fill value in a memory buffer.

Attention
The preferred API, Fortran 2003 version.
Parameters
fill_valuePointer to the fill value to be used.
fill_type_idFill value datatype identifier,
bufPointer to the memory buffer containing the selection to be filled.
buf_type_idDatatype of dataspace elements to be filled.
space_idDataspace identifier.
hdferrReturns 0 if successful and -1 if it fails.

See C API: H5Dfill()

◆ h5dfill_f() [2/2]

subroutine h5dfill_f ( type(type), intent(in)  fill_value,
integer(hid_t), intent(in)  space_id,
type(type), dimension(*), intent(out)  buf,
integer, intent(out)  hdferr 
)

Fills dataspace elements with a fill value in a memory buffer. Only INTEGER, CHARACTER, REAL and DOUBLE PRECISION datatypes of the fillvalues and buffers are supported. Buffer and fillvalue are assumed to have the same datatype. Only one-dimesional buffers are supported.

Attention
Obsolete API, use the Fortran 2003 version instead.
Parameters
fill_valueFill value.
space_idIdentifier of the memory datatype.
bufBuffer to receive data read from file.
hdferrReturns 0 if successful and -1 if it fails.

See C API: H5Dfill()

◆ h5dget_access_plist_f()

subroutine h5dget_access_plist_f ( integer(hid_t), intent(in)  dset_id,
integer(hid_t), intent(out)  plist_id,
integer, intent(out)  hdferr 
)

Returns a copy of the dataset creation property list.

Parameters
dset_idDataset identifier.
plist_idDataset access property list identifier.
hdferrReturns 0 if successful and -1 if it fails.

See C API: H5Dget_access_plist()

◆ h5dget_create_plist_f()

subroutine h5dget_create_plist_f ( integer(hid_t), intent(in)  dataset_id,
integer(hid_t), intent(out)  plist_id,
integer, intent(out)  hdferr 
)

Returns an identifier for a copy of the dataset creation property list for a dataset.

Parameters
dataset_idDataset identifier
plist_idCreation property list identifier
hdferrReturns 0 if successful and -1 if it fails.

See C API: H5Dget_create_plist()

◆ h5dget_offset_f()

subroutine h5dget_offset_f ( integer(hid_t), intent(in)  dset_id,
integer(haddr_t), intent(out)  offset,
integer, intent(out)  hdferr 
)

Returns dataset address in file.

Parameters
dset_idDataset identifier.
offsetThe offset in bytes.
hdferrReturns 0 if successful and -1 if it fails.

See C API: H5Dget_offset()

◆ h5dget_space_async_f()

subroutine h5dget_space_async_f ( integer(hid_t), intent(in)  dataset_id,
integer(hid_t), intent(out)  dataspace_id,
integer(hid_t), intent(in)  es_id,
integer, intent(out)  hdferr,
type(c_ptr), intent(in), optional  file,
type(c_ptr), intent(in), optional  func,
integer, intent(in), optional  line 
)

Asynchronously returns an identifier for a copy of the dataspace for a dataset.

Parameters
dataset_idDataset identifier.
dataspace_idDataspace identifier.
es_idEvent set identifier
hdferrReturns 0 if successful and -1 if it fails.
filePointer to filename the async subroutine is being called from, filename must be null character terminated
funcPointer to function name the async subroutine is being called in, func must be null character terminated
lineLine number the async subroutine is being called at

See C API: H5Dget_space_async()

◆ h5dget_space_f()

subroutine h5dget_space_f ( integer(hid_t), intent(in)  dataset_id,
integer(hid_t), intent(out)  dataspace_id,
integer, intent(out)  hdferr 
)

Returns an identifier for a copy of the dataspace for a dataset.

Parameters
dataset_idDataset identifier.
dataspace_idDataspace identifier.
hdferrReturns 0 if successful and -1 if it fails.

See C API: H5Dget_space()

◆ h5dget_space_status_f()

subroutine h5dget_space_status_f ( integer(hid_t), intent(in)  dset_id,
integer, intent(out)  flag,
integer, intent(out)  hdferr 
)

Returns the status of data space allocation.

Parameters
dset_idDataset identifier
flagStatus; may have one of the following values:
  • H5D_SPACE_STS_ERROR_F
  • H5D_SPACE_STS_NOT_ALLOCATED_F
  • H5D_SPACE_STS_PART_ALLOCATED_F
  • H5D_SPACE_STS_ALLOCATED_F
hdferrReturns 0 if successful and -1 if it fails.

See C API: H5Dget_space_status()

◆ h5dget_storage_size_f()

subroutine h5dget_storage_size_f ( integer(hid_t), intent(in)  dataset_id,
integer(hsize_t), intent(out)  size,
integer, intent(out)  hdferr 
)

Returns the amount of storage requires by a dataset.

Parameters
dataset_idDataset identifier
sizeDatastorage size
hdferrReturns 0 if successful and -1 if it fails.

See C API: H5Dget_storage_size()

◆ h5dget_type_f()

subroutine h5dget_type_f ( integer(hid_t), intent(in)  dataset_id,
integer(hid_t), intent(out)  datatype_id,
integer, intent(out)  hdferr 
)

Returns an identifier for a copy of the datatype for a dataset.

Parameters
dataset_idDataset identifier
datatype_idDataspace identifier
hdferrReturns 0 if successful and -1 if it fails.

See C API: H5Dget_type()

◆ h5dopen_async_f()

subroutine h5dopen_async_f ( integer(hid_t), intent(in)  loc_id,
character(len=*), intent(in)  name,
integer(hid_t), intent(out)  dset_id,
integer(hid_t), intent(in)  es_id,
integer, intent(out)  hdferr,
integer(hid_t), intent(in), optional  dapl_id,
type(c_ptr), intent(in), optional  file,
type(c_ptr), intent(in), optional  func,
integer, intent(in), optional  line 
)

Asynchronously opens an existing dataset.

Parameters
loc_idFile or group identifier
nameDataset name
dset_idDataset identifier
es_idEvent set identifier
hdferrReturns 0 if successful and -1 if it fails.
dapl_idDataset access property list
filePointer to filename the async subroutine is being called from, filename must be null character terminated
funcPointer to function name the async subroutine is being called in, func must be null character terminated
lineLine number the async subroutine is being called at

See C API: H5Dopen_async()

◆ h5dopen_f()

subroutine h5dopen_f ( integer(hid_t), intent(in)  loc_id,
character(len=*), intent(in)  name,
integer(hid_t), intent(out)  dset_id,
integer, intent(out)  hdferr,
integer(hid_t), intent(in), optional  dapl_id 
)

Opens an existing dataset.

Parameters
loc_idFile or group identifier
nameDataset name
dset_idDataset identifier
hdferrReturns 0 if successful and -1 if it fails.
dapl_idDataset access property list

See C API: H5Dopen2()

◆ h5dread_async_f()

subroutine h5dread_async_f ( integer(hid_t), intent(in)  dset_id,
integer(hid_t), intent(in)  mem_type_id,
type(c_ptr), intent(in)  buf,
integer(hid_t), intent(in)  es_id,
integer, intent(out)  hdferr,
integer(hid_t), intent(in), optional  mem_space_id,
integer(hid_t), intent(in), optional  file_space_id,
integer(hid_t), intent(in), optional  xfer_prp,
type(c_ptr), intent(in), optional  file,
type(c_ptr), intent(in), optional  func,
integer, intent(in), optional  line 
)

Asynchronously reads raw data from a dataset into a buffer.

Parameters
dset_idIdentifier of the dataset read from.
mem_type_idIdentifier of the memory datatype.
bufBuffer to receive data read from file.
es_idEvent set identifier
hdferrReturns 0 if successful and -1 if it fails.
mem_space_idIdentifier of the memory dataspace.
file_space_idIdentifier of dataset's dataspace in the file. (Default: H5S_ALL_F)
xfer_prpIdentifier of a transfer property list for this I/O operation.
filePointer to filename the async subroutine is being called from, filename must be null character terminated
funcPointer to function name the async subroutine is being called in, func must be null character terminated
lineLine number the async subroutine is being called at

See C API: H5Dread_async()

◆ h5dread_chunk_f()

subroutine h5dread_chunk_f ( integer(hid_t), intent(in)  dset_id,
integer(hsize_t), dimension(:), intent(in)  offset,
integer, intent(inout)  filters,
type(c_ptr)  buf,
integer, intent(out)  hdferr,
integer(hid_t), intent(in), optional  dxpl_id 
)

Reads a raw data chunk directly from a dataset in a file into a buffer.

Parameters
dset_idIdentifier of the dataset to read from
offsetLogical position of the chunk's first element in the dataspace, 0-based indices
filtersMask for identifying the filters in use
bufBuffer containing data to be read from the chunk
hdferrReturns 0 if successful and -1 if it fails.
dxpl_idDataset transfer property list identifier

See C API: H5Dread_chunk()

◆ h5dread_f()

subroutine h5dread_f ( integer(hid_t), intent(in)  dset_id,
integer(hid_t), intent(in)  mem_type_id,
type(c_ptr), intent(in)  buf,
integer, intent(out)  hdferr,
integer(hid_t), intent(in), optional  mem_space_id,
integer(hid_t), intent(in), optional  file_space_id,
integer(hid_t), intent(in), optional  xfer_prp 
)

Reads raw data from a dataset into a buffer (Passes Pointer).

Attention
The preferred API, Fortran 2003 version.
Parameters
dset_idIdentifier of the dataset read from.
mem_type_idIdentifier of the memory datatype.
bufBuffer to receive data read from file.
hdferrReturns 0 if successful and -1 if it fails.
mem_space_idIdentifier of the memory dataspace.
file_space_idIdentifier of dataset's dataspace in the file. (Default: H5S_ALL_F)
xfer_prpIdentifier of a transfer property list for this I/O operation.

See C API: H5Dread()

◆ h5dread_f___f90_version()

subroutine h5dread_f___f90_version ( integer(hid_t), intent(in)  dset_id,
integer(hid_t), intent(in)  mem_type_id,
type(type), intent(inout)  buf,
integer(hsize_t), dimension(*), intent(in)  dims,
integer, intent(out)  hdferr,
integer(hid_t), intent(in), optional  mem_space_id,
integer(hid_t), intent(in), optional  file_space_id,
integer(hid_t), intent(in), optional  xfer_prp 
)

There is no direct Fortran90 counterpart for the C function H5Dread. Instead, that functionality is provided by two Fortran90 subroutines:

  • h5dread_f Purpose: Reads data other than variable-length data, uses DIMENSION argument and buf is not a pointer.
  • h5dread_vl_f Purpose: Reads variable-length data.
Attention
Obsolete API, use the Fortran 2003 version instead.
Parameters
dset_idIdentifier of the dataset read from.
mem_type_idIdentifier of the memory datatype.
bufBuffer to receive data read from file, may be a scalar or an array.
dimsArray to hold corresponding dimension sizes of data buffer buf. dim(k) has value of the k-th. dimension of buffer buf. Values are ignored if buf is a scalar.
hdferrReturns 0 if successful and -1 if it fails.
mem_space_idIdentifier of the memory dataspace. (Default: H5S_ALL_F)
file_space_idIdentifier of dataset's dataspace in the file. (Default: H5S_ALL_F)
xfer_prpIdentifier of a transfer property list for this I/O operation. (Default: H5P_DEFAULT_F)

◆ h5dread_multi_f()

subroutine h5dread_multi_f ( integer(size_t), intent(in)  count,
integer(hid_t), dimension(*), intent(in)  dset_id,
integer(hid_t), dimension(*), intent(in)  mem_type_id,
integer(hid_t), dimension(*), intent(in)  mem_space_id,
integer(hid_t), dimension(*), intent(in)  file_space_id,
type(c_ptr), dimension(*), intent(in)  buf,
integer, intent(out)  hdferr,
integer(hid_t), intent(in), optional  xfer_prp 
)

Reads data from a file to memory buffers for multiple datasets.

Parameters
countNumber of datasets to write to.
dset_idIdentifier of the dataset to write to.
mem_type_idIdentifier of the memory datatype.
mem_space_idIdentifier of the memory dataspace.
file_space_idIdentifier of the dataset's dataspace in the file.
bufBuffer with data to be written to the file.
hdferrReturns 0 if successful and -1 if it fails.
xfer_prpIdentifier of a transfer property list for this I/O operation.

See C API: H5Dread_multi()

◆ h5dread_vl_f()

subroutine h5dread_vl_f ( integer(hid_t), intent(in)  dset_id,
integer(hid_t), intent(in)  mem_type_id,
type(type), dimension(dims(1),dims(2)), intent(inout)  buf,
integer(hsize_t), dimension(2), intent(in)  dims,
integer(size_t), dimension(*), intent(inout)  len,
integer, intent(out)  hdferr,
integer(hid_t), intent(in), optional  mem_space_id,
integer(hid_t), intent(in), optional  file_space_id,
integer(hid_t), intent(in), optional  xfer_prp 
)

Reads variable-length data. F2003 API h5dread_f should be used instead.

Parameters
dset_idDataset identifier.
mem_type_idMemory datatype identifier.
bufData buffer; may be a scalar or an array, TYPE(TYPE) must be one of the following:
  • INTEGER
  • REAL
  • CHARACTER
dimsArray to hold corresponding dimension sizes of data buffer buf, dim(k) has value of the k-th dimension of buffer buf. Values are ignored if buf is a scalar.
lenArray to store length of each element.
hdferrReturns 0 if successful and -1 if it fails.
mem_space_idMemory dataspace identifier, default value is H5S_ALL_F.
file_space_idFile dataspace identifier, default value is H5S_ALL_F.
xfer_prpTransfer property list identifier, default value is H5P_DEFAULT_F.

◆ h5dset_extent_async_f()

subroutine h5dset_extent_async_f ( integer(hid_t), intent(in)  dataset_id,
integer(hsize_t), dimension(*), intent(in)  fsize,
integer(hid_t), intent(in)  es_id,
integer, intent(out)  hdferr,
type(c_ptr), intent(in), optional  file,
type(c_ptr), intent(in), optional  func,
integer, intent(in), optional  line 
)

Asynchronously extends a dataset with unlimited dimension.

Parameters
dataset_idDataset identifier
fsizeArray containing the new magnitude of each dimension
es_idEvent set identifier
hdferrReturns 0 if successful and -1 if it fails.
filePointer to filename the async subroutine is being called from, filename must be null character terminated
funcPointer to function name the async subroutine is being called in, func must be null character terminated
lineLine number the async subroutine is being called at

See C API: H5Dset_extent_async()

◆ h5dset_extent_f()

subroutine h5dset_extent_f ( integer(hid_t), intent(in)  dataset_id,
integer(hsize_t), dimension(*), intent(in)  fsize,
integer, intent(out)  hdferr 
)

Extends a dataset with unlimited dimension.

Parameters
dataset_idDataset identifier
fsizeArray containing the new magnitude of each dimension
hdferrReturns 0 if successful and -1 if it fails.

See C API: H5Dset_extent()

◆ h5dvlen_get_max_len_f()

subroutine h5dvlen_get_max_len_f ( integer(hid_t), intent(in)  dataset_id,
integer(hid_t), intent(in)  type_id,
integer(hid_t), intent(in)  space_id,
integer(size_t), intent(out)  len,
integer, intent(out)  hdferr 
)

Returns maximum length of the VL array elements.

Parameters
dataset_idDataset identifier
type_idDatatype identifier
space_idDataspace identifier
lenBuffer size
hdferrReturns 0 if successful and -1 if it fails.

◆ h5dvlen_reclaim_f()

subroutine h5dvlen_reclaim_f ( integer(hid_t), intent(in)  type_id,
integer(hid_t), intent(in)  space_id,
integer(hid_t), intent(in)  plist_id,
type(c_ptr), intent(in)  buf,
integer, intent(out)  hdferr 
)

Reclaims VL datatype memory buffers.

Parameters
type_idIdentifier of the datatype.
space_idIdentifier of the dataspace.
plist_idIdentifier of the property list used to create the buffer.
bufPointer to the buffer to be reclaimed.
hdferrReturns 0 if successful and -1 if it fails.

See C API: H5Dvlen_reclaim()

◆ h5dwrite_async_f()

subroutine h5dwrite_async_f ( integer(hid_t), intent(in)  dset_id,
integer(hid_t), intent(in)  mem_type_id,
type(c_ptr), intent(in)  buf,
integer(hid_t), intent(in)  es_id,
integer, intent(out)  hdferr,
integer(hid_t), intent(in), optional  mem_space_id,
integer(hid_t), intent(in), optional  file_space_id,
integer(hid_t), intent(in), optional  xfer_prp,
type(c_ptr), intent(in), optional  file,
type(c_ptr), intent(in), optional  func,
integer, intent(in), optional  line 
)

Asynchronously writes raw data from a buffer to a dataset.

Parameters
dset_idIdentifier of the dataset to write to.
mem_type_idIdentifier of the memory datatype.
bufBuffer with data to be written to the file.
es_idEvent set identifier
hdferrReturns 0 if successful and -1 if it fails.
mem_space_idIdentifier of the memory dataspace.
file_space_idIdentifier of the dataset's dataspace in the file.
xfer_prpIdentifier of a transfer property list for this I/O operation.
filePointer to filename the async subroutine is being called from, filename must be null character terminated
funcPointer to function name the async subroutine is being called in, func must be null character terminated
lineLine number the async subroutine is being called at

See C API: H5Dwrite_async()

◆ h5dwrite_chunk_f()

subroutine h5dwrite_chunk_f ( integer(hid_t), intent(in)  dset_id,
integer, intent(in)  filters,
integer(hsize_t), dimension(:), intent(in)  offset,
integer(size_t), intent(in)  data_size,
type(c_ptr)  buf,
integer, intent(out)  hdferr,
integer(hid_t), intent(in), optional  dxpl_id 
)

Writes a raw data chunk from a buffer directly to a dataset in a file.

Parameters
dset_idIdentifier of the dataset to write to
filtersMask for identifying the filters in use
offsetLogical position of the chunk's first element in the dataspace, 0-based indices
data_sizeSize of the actual data to be written in bytes
bufBuffer containing data to be written to the chunk
hdferrReturns 0 if successful and -1 if it fails.
dxpl_idDataset transfer property list identifier

See C API: H5Dwrite_chunk()

◆ h5dwrite_f()

subroutine h5dwrite_f ( integer(hid_t), intent(in)  dset_id,
integer(hid_t), intent(in)  mem_type_id,
type(c_ptr), intent(in)  buf,
integer, intent(out)  hdferr,
integer(hid_t), intent(in), optional  mem_space_id,
integer(hid_t), intent(in), optional  file_space_id,
integer(hid_t), intent(in), optional  xfer_prp 
)

Writes raw data from a buffer to a dataset.

Attention
The preferred API, Fortran 2003 version.
Parameters
dset_idIdentifier of the dataset to write to.
mem_type_idIdentifier of the memory datatype.
bufBuffer with data to be written to the file.
hdferrReturns 0 if successful and -1 if it fails.
mem_space_idIdentifier of the memory dataspace.
file_space_idIdentifier of the dataset's dataspace in the file.
xfer_prpIdentifier of a transfer property list for this I/O operation.

See C API: H5Dwrite()

◆ h5dwrite_f___f90_version()

subroutine h5dwrite_f___f90_version ( integer(hid_t), intent(in)  dset_id,
integer(hid_t), intent(in)  mem_type_id,
type(type), intent(in)  buf,
intent(in)  dims,
  hdferr,
integer(hid_t), intent(in), optional  mem_space_id,
integer(hid_t), intent(in), optional  file_space_id,
integer(hid_t), intent(in), optional  xfer_prp 
)

There is no direct Fortran90 counterpart for the C function H5Dwrite. Instead, that functionality is provided by two Fortran90 subroutines:

  • h5dwrite_f Purpose: Writes data other than variable-length data.
  • h5dwrite_vl_f Purpose: Writes variable-length data.
Attention
Obsolete API, use the Fortran 2003 version instead.
Parameters
dset_idIdentifier of the dataset to write to.
mem_type_idIdentifier of the memory datatype.
bufData buffer; may be a scalar or an array.
dimsArray to hold corresponding dimension sizes of data buffer buf; dim(k) has value. of the k-th dimension of buffer buf; values are ignored if buf is a scalar.
hdferrReturns 0 if successful and -1 if it fails.
mem_space_idIdentifier of the memory dataspace. Default value is H5S_ALL_F.
file_space_idIdentifier of the dataset's dataspace in the file. Default value is H5S_ALL_F.
xfer_prpIdentifier of a transfer property list for this I/O operation. Default value is H5P_DEFAULT_F.

◆ h5dwrite_multi_f()

subroutine h5dwrite_multi_f ( integer(size_t), intent(in)  count,
integer(hid_t), dimension(*), intent(in)  dset_id,
integer(hid_t), dimension(*), intent(in)  mem_type_id,
integer(hid_t), dimension(*), intent(in)  mem_space_id,
integer(hid_t), dimension(*), intent(in)  file_space_id,
type(c_ptr), dimension(*), intent(in)  buf,
integer, intent(out)  hdferr,
integer(hid_t), intent(in), optional  xfer_prp 
)

Writes data in memory to a file for multiple datasets.

Parameters
countNumber of datasets to write to.
dset_idIdentifier of the dataset to write to.
mem_type_idIdentifier of the memory datatype.
mem_space_idIdentifier of the memory dataspace.
file_space_idIdentifier of the dataset's dataspace in the file.
bufBuffer with data to be written to the file.
hdferrReturns 0 if successful and -1 if it fails.
xfer_prpIdentifier of a transfer property list for this I/O operation.

See C API: H5Dwrite_multi()

◆ h5dwrite_vl_f()

subroutine h5dwrite_vl_f ( integer(hid_t), intent(in)  dset_id,
integer(hid_t), intent(in)  mem_type_id,
type(type), dimension(dims(1),dims(2)), intent(in)  buf,
integer(hsize_t), dimension(2), intent(in)  dims,
integer(size_t), dimension(*), intent(in)  len,
integer, intent(out)  hdferr,
integer(hid_t), intent(in), optional  mem_space_id,
integer(hid_t), intent(in), optional  file_space_id,
integer(hid_t), intent(in), optional  xfer_prp 
)

Writes variable-length data. F2003 API h5dwrite_f should be used instead.

Parameters
dset_idDataset identifier.
mem_type_idMemory datatype identifier.
bufData buffer; may be a scalar or an array, TYPE(TYPE) must be one of the following:
  • INTEGER
  • REAL
  • CHARACTER
dimsArray to hold corresponding dimension sizes of data buffer buf, dim(k) has value of the k-th dimension of buffer buf. Values are ignored if buf is a scalar.
lenArray to store length of each element.
hdferrReturns 0 if successful and -1 if it fails.
mem_space_idMemory dataspace identifier, default value is H5S_ALL_F.
file_space_idFile dataspace identifier, default value is H5S_ALL_F.
xfer_prpTransfer property list identifier, default value is H5P_DEFAULT_F.

Variable Documentation

◆ h5d_alloc_time_default_f

integer h5d_alloc_time_default_f

H5D_ALLOC_TIME_DEFAULT.

◆ h5d_alloc_time_early_f

integer h5d_alloc_time_early_f

H5D_ALLOC_TIME_EARLY.

◆ h5d_alloc_time_error_f

integer h5d_alloc_time_error_f

H5D_ALLOC_TIME_ERROR.

◆ h5d_alloc_time_incr_f

integer h5d_alloc_time_incr_f

H5D_ALLOC_TIME_INCR.

◆ h5d_alloc_time_late_f

integer h5d_alloc_time_late_f

H5D_ALLOC_TIME_LATE.

◆ h5d_chunk_cache_nbytes_dflt_f

integer(size_t) h5d_chunk_cache_nbytes_dflt_f

H5D_CHUNK_CACHE_NBYTES_DEFAULT.

◆ h5d_chunk_cache_nslots_dflt_f

integer(size_t) h5d_chunk_cache_nslots_dflt_f

H5D_CHUNK_CACHE_NSLOTS_DEFAULT.

◆ h5d_chunk_cache_w0_dflt_f

integer h5d_chunk_cache_w0_dflt_f

H5D_CHUNK_CACHE_W0_DEFAULT.

◆ h5d_chunked_f

integer h5d_chunked_f

H5D_CHUNKED.

◆ h5d_compact_f

integer h5d_compact_f

H5D_COMPACT.

◆ h5d_contiguous_f

integer h5d_contiguous_f

H5D_CONTIGUOUS.

◆ h5d_fill_time_alloc_f

integer h5d_fill_time_alloc_f

H5D_FILL_TIME_ALLOC.

◆ h5d_fill_time_error_f

integer h5d_fill_time_error_f

H5D_FILL_TIME_ERROR.

◆ h5d_fill_time_never_f

integer h5d_fill_time_never_f

H5D_FILL_TIME_NEVER.

◆ h5d_fill_value_default_f

integer h5d_fill_value_default_f

H5D_FILL_VALUE_DEFAULT.

◆ h5d_fill_value_error_f

integer h5d_fill_value_error_f

H5D_FILL_VALUE_ERROR.

◆ h5d_fill_value_undefined_f

integer h5d_fill_value_undefined_f

H5D_FILL_VALUE_UNDEFINED.

◆ h5d_fill_value_user_defined_f

integer h5d_fill_value_user_defined_f

H5D_FILL_VALUE_USER_DEFINED.

◆ h5d_mpio_chunk_collective_f

integer h5d_mpio_chunk_collective_f

H5D_MPIO_CHUNK_COLLECTIVE.

◆ h5d_mpio_chunk_independent_f

integer h5d_mpio_chunk_independent_f

H5D_MPIO_CHUNK_INDEPENDENT.

◆ h5d_mpio_chunk_mixed_f

integer h5d_mpio_chunk_mixed_f

H5D_MPIO_CHUNK_MIXED.

◆ h5d_mpio_collective_f

integer h5d_mpio_collective_f

H5D_MPIO_COLLECTIVE.

◆ h5d_mpio_contig_collective_f

integer h5d_mpio_contig_collective_f

H5D_MPIO_CONTIGUOUS_COLLECTIVE.

◆ h5d_mpio_data_transforms_f

integer h5d_mpio_data_transforms_f

H5D_MPIO_DATA_TRANSFORMS.

◆ h5d_mpio_datatype_conversion_f

integer h5d_mpio_datatype_conversion_f

H5D_MPIO_DATATYPE_CONVERSION.

◆ h5d_mpio_error_while_checking_collective_possible_f

integer h5d_mpio_error_while_checking_collective_possible_f

H5D_MPIO_ERROR_WHILE_CHECKING_COLLECTIVE_POSSIBLE.

◆ h5d_mpio_link_chunk_f

integer h5d_mpio_link_chunk_f

H5D_MPIO_LINK_CHUNK.

◆ h5d_mpio_mpi_opt_types_env_var_disabled_f

integer h5d_mpio_mpi_opt_types_env_var_disabled_f

H5D_MPIO_MPI_OPT_TYPES_ENV_VAR_DISABLED.

◆ h5d_mpio_multi_chunk_f

integer h5d_mpio_multi_chunk_f

H5D_MPIO_MULTI_CHUNK.

◆ h5d_mpio_no_chunk_optimization_f

integer h5d_mpio_no_chunk_optimization_f

H5D_MPIO_NO_CHUNK_OPTIMIZATION.

◆ h5d_mpio_no_collective_f

integer h5d_mpio_no_collective_f

H5D_MPIO_NO_COLLECTIVE.

◆ h5d_mpio_no_collective_max_cause_f

integer h5d_mpio_no_collective_max_cause_f

H5D_MPIO_NO_COLLECTIVE_MAX_CAUSE.

◆ h5d_mpio_no_selection_io_causes_f

integer h5d_mpio_no_selection_io_causes_f

H5D_MPIO_NO_SELECTION_IO_CAUSES.

◆ h5d_mpio_no_selection_io_f

integer h5d_mpio_no_selection_io_f

H5D_MPIO_NO_SELECTION_IO.

◆ h5d_mpio_not_contiguous_or_chunked_dataset_f

integer h5d_mpio_not_contiguous_or_chunked_dataset_f

H5D_MPIO_NOT_CONTIGUOUS_OR_CHUNKED_DATASET.

◆ h5d_mpio_not_simple_or_scalar_dataspaces_f

integer h5d_mpio_not_simple_or_scalar_dataspaces_f

H5D_MPIO_NOT_SIMPLE_OR_SCALAR_DATASPACES.

◆ h5d_mpio_parallel_filtered_writes_disabled_f

integer h5d_mpio_parallel_filtered_writes_disabled_f

H5D_MPIO_PARALLEL_FILTERED_WRITES_DISABLED.

◆ h5d_mpio_set_independent_f

integer h5d_mpio_set_independent_f

H5D_MPIO_SET_INDEPENDENT.

◆ h5d_scalar_io_f

integer h5d_scalar_io_f

Scalar (or legacy MPIO) I/O was performed.

◆ h5d_sel_io_bkg_buf_too_small_f

integer h5d_sel_io_bkg_buf_too_small_f

H5D_SEL_IO_BKG_BUF_TOO_SMALL.

◆ h5d_sel_io_chunk_cache_f

integer h5d_sel_io_chunk_cache_f

H5D_SEL_IO_CHUNK_CACHE.

◆ h5d_sel_io_contiguous_sieve_buffer_f

integer h5d_sel_io_contiguous_sieve_buffer_f

H5D_SEL_IO_CONTIGUOUS_SIEVE_BUFFER.

◆ h5d_sel_io_dataset_filter_f

integer h5d_sel_io_dataset_filter_f

H5D_SEL_IO_DATASET_FILTER.

◆ h5d_sel_io_default_off_f

integer h5d_sel_io_default_off_f

H5D_SEL_IO_DEFAULT_OFF.

◆ h5d_sel_io_disable_by_api_f

integer h5d_sel_io_disable_by_api_f

H5D_SEL_IO_DISABLE_BY_API.

◆ h5d_sel_io_no_vector_or_selection_io_cb_f

integer h5d_sel_io_no_vector_or_selection_io_cb_f

H5D_SEL_IO_NO_VECTOR_OR_SELECTION_IO_CB.

◆ h5d_sel_io_not_contiguous_or_chunked_dataset_f

integer h5d_sel_io_not_contiguous_or_chunked_dataset_f

H5D_SEL_IO_NOT_CONTIGUOUS_OR_CHUNKED_DATASET.

◆ h5d_sel_io_page_buffer_f

integer h5d_sel_io_page_buffer_f

H5D_SEL_IO_PAGE_BUFFER.

◆ h5d_sel_io_tconv_buf_too_small_f

integer h5d_sel_io_tconv_buf_too_small_f

H5D_SEL_IO_TCONV_BUF_TOO_SMALL.

◆ h5d_selection_io_f

integer h5d_selection_io_f

Selection I/O was performed.

◆ h5d_selection_io_mode_default_f

integer h5d_selection_io_mode_default_f

H5D_SELECTION_IO_MODE_DEFAULT.

◆ h5d_selection_io_mode_off_f

integer h5d_selection_io_mode_off_f

H5D_SELECTION_IO_MODE_OFF.

◆ h5d_selection_io_mode_on_f

integer h5d_selection_io_mode_on_f

H5D_SELECTION_IO_MODE_ON.

◆ h5d_space_sts_allocated_f

integer h5d_space_sts_allocated_f

H5D_SPACE_STS_ALLOCATED.

◆ h5d_space_sts_error_f

integer h5d_space_sts_error_f

H5D_SPACE_STS_ERROR.

◆ h5d_space_sts_not_allocated_f

integer h5d_space_sts_not_allocated_f

H5D_SPACE_STS_NOT_ALLOCATED.

◆ h5d_space_sts_part_allocated_f

integer h5d_space_sts_part_allocated_f

H5D_SPACE_STS_PART_ALLOCATED.

◆ h5d_vds_error_f

integer h5d_vds_error_f

H5D_VDS_ERROR.

◆ h5d_vds_first_missing_f

integer h5d_vds_first_missing_f

H5D_VDS_FIRST_MISSING.

◆ h5d_vds_last_available_f

integer h5d_vds_last_available_f

H5D_VDS_LAST_AVAILABLE.

◆ h5d_vector_io_f

integer h5d_vector_io_f

Vector I/O was performed.

◆ h5d_virtual_f

integer h5d_virtual_f

H5D_VIRTUAL.