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| HDF5 Last Updated on 2026-03-23 The HDF5 Field Guide

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Fortran Datatype (H5T) Interface

## Detailed Description

See also
  Datatypes (H5T), C-API
  HDF5 Datatypes, User Guide

## Modules
module | h5t
| This module contains Fortran interfaces for H5T functions.

## Functions/Subroutines
subroutine | h5tarray_create_f (base_id, rank, dims, type_id, hdferr)
| Creates an array datatype object.
subroutine | h5tclose_f (type_id, hdferr)
| Releases a datatype.
subroutine | h5tcommit_anon_f (loc_id, dtype_id, hdferr, tcpl_id, tapl_id)
| Commits a transient datatype to a file, creating a new named datatype, but does not link it into the file structure.
subroutine | h5tcommit_f (loc_id, name, type_id, hdferr, lcpl_id, tcpl_id, tapl_id)
| Commits a transient datatype to a file, creating a new named datatype.
subroutine | h5tcommitted_f (dtype_id, committed, hdferr)
| Determines whether a datatype is a named type or a transient type.
subroutine | h5tcompiler_conv_f (src_id, dst_id, flag, hdferr)
| Check whether the library's default conversion is hard conversion.
subroutine | h5tconvert_f (src_id, dst_id, nelmts, buf, hdferr, background, plist_id)
| Converts data from between specified datatypes.
subroutine | h5tcopy_f (type_id, new_type_id, hdferr)
| Creates a copy of existing datatype.
subroutine | h5tcreate_f (class, size, type_id, hdferr)
| Creates a new datatype.
subroutine | h5tdecode_f (buf, obj_id, hdferr, buf_size)
| Decode a binary object description of data type and return a new object handle.
subroutine | h5tencode_f (obj_id, buf, nalloc, hdferr)
| Encode a data type object description into a binary buffer.
subroutine | h5tenum_create_f (parent_id, new_type_id, hdferr)
| Creates a new enumeration datatype.
subroutine | h5tenum_insert_f (type_id, name, value, hdferr)
| Inserts a new enumeration datatype member.
subroutine | h5tenum_insert_f (type_id, name, value, hdferr)
| Inserts a new enumeration datatype member.
subroutine | h5tenum_nameof_f (type_id, value, namelen, name, hdferr)
| Returns the symbol name corresponding to a specified member of an enumeration datatype.
subroutine | h5tenum_valueof_f (type_id, name, value, hdferr)
| Returns the value corresponding to a specified member of an enumeration datatype.
subroutine | h5tequal_f (type1_id, type2_id, flag, hdferr)
| Determines whether two datatype identifiers refer to the same datatype.
subroutine | h5tget_array_dims_f (type_id, dims, hdferr)
| Returns sizes of array dimensions.
subroutine | h5tget_array_ndims_f (type_id, ndims, hdferr)
| Returns the rank of an array datatype.
subroutine | h5tget_class_f (type_id, class, hdferr)
| Returns the datatype class identifier.
subroutine | h5tget_create_plist_f (dtype_id, dtpl_id, hdferr)
| Returns a copy of a datatype creation property list.
subroutine | h5tget_cset_f (type_id, cset, hdferr)
| Retrieves the character set type of a string datatype.
subroutine | h5tget_ebias_f (type_id, ebias, hdferr)
| Retrieves the exponent bias of a floating-point type.
subroutine | h5tget_fields_f (type_id, spos, epos, esize, mpos, msize, hdferr)
| Retrieves floating point datatype bit field information.
subroutine | h5tget_inpad_f (type_id, padtype, hdferr)
| Retrieves the internal padding type for unused bits in floating-point datatypes.
subroutine | h5tget_member_class_f (type_id, member_no, class, hdferr)
| Returns datatype class of compound datatype member.
subroutine | h5tget_member_index_f (type_id, name, index, hdferr)
| Retrieves the index of a compound or enumeration datatype member.
subroutine | h5tget_member_name_f (type_id, index, member_name, namelen, hdferr)
| Retrieves the name of a field of a compound datatype.
subroutine | h5tget_member_offset_f (type_id, member_no, offset, hdferr)
| Retrieves the offset of a field of a compound datatype.
subroutine | h5tget_member_type_f (type_id, field_idx, datatype, hdferr)
| Returns the datatype of the specified member.
subroutine | h5tget_member_value_f (type_id, member_no, value, hdferr)
| Returns the value of an enumeration datatype member.
subroutine | h5tget_native_type_f (dtype_id, direction, native_dtype_id, hdferr)
| Returns the native datatype of a specified datatype.
subroutine | h5tget_nmembers_f (type_id, num_members, hdferr)
| Retrieves the number of fields in a compound datatype.
subroutine | h5tget_norm_f (type_id, norm, hdferr)
| Retrieves mantissa normalization of a floating-point datatype.
subroutine | h5tget_offset_f (type_id, offset, hdferr)
| Retrieves the bit offset of the first significant bit.
subroutine | h5tget_order_f (type_id, order, hdferr)
| Returns the byte order of an atomic datatype.
subroutine | h5tget_pad_f (type_id, lsbpad, msbpad, hdferr)
| Retrieves the padding type of the least and most-significant bit padding.
subroutine | h5tget_precision_f (type_id, precision, hdferr)
| Returns the precision of an atomic datatype.
subroutine | h5tget_sign_f (type_id, sign, hdferr)
| Retrieves the sign type for an integer type.
subroutine | h5tget_size_f (type_id, size, hdferr)
| Returns the size of a datatype.
subroutine | h5tget_strpad_f (type_id, strpad, hdferr)
| Retrieves the storage mechanism for a string datatype.
subroutine | h5tget_super_f (type_id, base_type_id, hdferr)
| Returns the base datatype from which a datatype is derived.
subroutine | h5tget_tag_f (type_id, tag, taglen, hdferr)
| Gets the tag associated with an opaque datatype.
subroutine | h5tinsert_f (type_id, name, offset, field_id, hdferr)
| Adds a new member to a compound datatype.
subroutine | h5tis_variable_str_f (type_id, status, hdferr)
| Determines whether a dattype is a variable string.
subroutine | h5topen_f (loc_id, name, type_id, hdferr, tapl_id)
| Opens named datatype.
subroutine | h5tpack_f (type_id, hdferr)
| Recursively removes padding from within a compound datatype.
subroutine | h5tset_cset_f (type_id, cset, hdferr)
| Sets character set to be used.
subroutine | h5tset_ebias_f (type_id, ebias, hdferr)
| Sets the exponent bias of a floating-point type.
subroutine | h5tset_fields_f (type_id, spos, epos, esize, mpos, msize, hdferr)
| Sets locations and sizes of floating point bit fields.
subroutine | h5tset_inpad_f (type_id, padtype, hdferr)
| Fills unused internal floating point bits.
subroutine | h5tset_norm_f (type_id, norm, hdferr)
| Sets the mantissa normalization of a floating-point datatype.
subroutine | h5tset_offset_f (type_id, offset, hdferr)
| Sets the bit offset of the first significant bit.
subroutine | h5tset_order_f (type_id, order, hdferr)
| Sets the byte ordering of an atomic datatype.
subroutine | h5tset_pad_f (type_id, lsbpad, msbpad, hdferr)
| Sets the least and most-significant bits padding types.
subroutine | h5tset_precision_f (type_id, precision, hdferr)
| Sets the precision of an atomic datatype.
subroutine | h5tset_sign_f (type_id, sign, hdferr)
| Sets the sign property for an integer type.
subroutine | h5tset_size_f (type_id, size, hdferr)
| Sets the total size for an atomic datatype.
subroutine | h5tset_strpad_f (type_id, strpad, hdferr)
| Defines the storage mechanism for character strings.
subroutine | h5tset_tag_f (type_id, tag, hdferr)
| Tags an opaque datatype.
subroutine | h5tvlen_create_f (type_id, vltype_id, hdferr)
| Creates a new variable-length datatype.

## Variables
integer | h5t_array_f
| H5T_ARRAY.
integer | h5t_bitfield_f
| H5T_BITFIELD.
integer(hid_t) | h5t_c_s1
| H5T_C_S1.
integer | h5t_complex_f
| H5T_COMPLEX.
integer | h5t_compound_f
| H5T_COMPOUND.
integer | h5t_cset_ascii_f
| H5T_CSET_ASCII.
integer | h5t_cset_utf8_f
| H5T_CSET_UTF8.
integer | h5t_dir_ascend_f
| H5T_DIR_ASCEND.
integer | h5t_dir_descend_f
| H5T_DIR_DESCEND.
integer | h5t_enum_f
| H5T_ENUM.
integer(hid_t) | h5t_float_bfloat16be
| H5T_FLOAT_BFLOAT16BE.
integer(hid_t) | h5t_float_bfloat16le
| H5T_FLOAT_BFLOAT16LE.
integer | h5t_float_f
| H5T_FLOAT.
integer(hid_t) | h5t_float_f4e2m1
| H5T_FLOAT_F4E2M1.
integer(hid_t) | h5t_float_f6e2m3
| H5T_FLOAT_F6E2M3.
integer(hid_t) | h5t_float_f6e3m2
| H5T_FLOAT_F6E3M2.
integer(hid_t) | h5t_float_f8e4m3
| H5T_FLOAT_F8E4M3.
integer(hid_t) | h5t_float_f8e5m2
| H5T_FLOAT_F8E5M2.
integer(hid_t) | h5t_fortran_s1
| H5T_FORTRAN_S1.
integer(hid_t) | h5t_ieee_f16be
| H5T_IEEE_F16BE.
integer(hid_t) | h5t_ieee_f16le
| H5T_IEEE_F16LE.
integer(hid_t) | h5t_ieee_f32be
| H5T_IEEE_F32BE.
integer(hid_t) | h5t_ieee_f32le
| H5T_IEEE_F32LE.
integer(hid_t) | h5t_ieee_f64be
| H5T_IEEE_F64BE.
integer(hid_t) | h5t_ieee_f64le
| H5T_IEEE_F64LE.
integer | h5t_integer_f
| H5T_INTEGER.
integer(hid_t) | h5t_native_b16
| H5T_NATIVE_B16.
integer(hid_t) | h5t_native_b32
| H5T_NATIVE_B32.
integer(hid_t) | h5t_native_b64
| H5T_NATIVE_B64.
integer(hid_t) | h5t_native_b8
| H5T_NATIVE_B8.
integer(hid_t) | h5t_native_character
| H5T_NATIVE_CHARACTER.
integer(hid_t) | h5t_native_double
| H5T_NATIVE_DOUBLE.
integer(hid_t) | h5t_native_float_128
| Quadruple-precision floating-point.
integer(hid_t) | h5t_native_integer
| H5T_NATIVE_INTEGER.
integer(hid_t) | h5t_native_real
| H5T_NATIVE_REAL.
integer(hid_t) | h5t_native_real_c_double
| H5T_NATIVE_REAL_C_DOUBLE.
integer(hid_t) | h5t_native_real_c_float
| H5T_NATIVE_REAL_C_FLOAT.
integer(hid_t) | h5t_native_real_c_long_double
| H5T_NATIVE_REAL_C_LONG_DOUBLE.
integer | h5t_no_class_f
| H5T_NO_CLASS.
integer | h5t_norm_implied_f
| H5T_NORM_IMPLIED.
integer | h5t_norm_msbset_f
| H5T_NORM_MSBSET.
integer | h5t_norm_none_f
| H5T_NORM_NONE.
integer | h5t_opaque_f
| H5T_OPAQUE.
integer | h5t_order_be_f
| H5T_ORDER_BE.
integer | h5t_order_le_f
| H5T_ORDER_LE.
integer | h5t_order_mixed_f
| H5T_ORDER_MIXED.
integer | h5t_order_none_f
| H5T_ORDER_NONE.
integer | h5t_order_vax_f
| H5T_ORDER_VAX.
integer | h5t_pad_background_f
| H5T_PAD_BACKGROUND.
integer | h5t_pad_error_f
| H5T_PAD_ERROR.
integer | h5t_pad_one_f
| H5T_PAD_ONE.
integer | h5t_pad_zero_f
| H5T_PAD_ZERO.
integer | h5t_reference_f
| H5T_REFERENCE.
integer | h5t_sgn_2_f
| H5T_SGN_2.
integer | h5t_sgn_error_f
| H5T_SGN_ERROR.
integer | h5t_sgn_none_f
| H5T_SGN_NONE.
integer(hid_t) | h5t_std_b16be
| H5T_STD_B16BE.
integer(hid_t) | h5t_std_b16le
| H5T_STD_B16LE.
integer(hid_t) | h5t_std_b32be
| H5T_STD_B32BE.
integer(hid_t) | h5t_std_b32le
| H5T_STD_B32LE.
integer(hid_t) | h5t_std_b64be
| H5T_STD_B64BE.
integer(hid_t) | h5t_std_b64le
| H5T_STD_B64LE.
integer(hid_t) | h5t_std_b8be
| H5T_STD_B8BE.
integer(hid_t) | h5t_std_b8le
| H5T_STD_B8LE.
integer(hid_t) | h5t_std_i16be
| H5T_STD_I16BE.
integer(hid_t) | h5t_std_i16le
| H5T_STD_I16LE.
integer(hid_t) | h5t_std_i32be
| H5T_STD_I32BE.
integer(hid_t) | h5t_std_i32le
| H5T_STD_I32LE.
integer(hid_t) | h5t_std_i64be
| H5T_STD_I64BE.
integer(hid_t) | h5t_std_i64le
| H5T_STD_I64LE.
integer(hid_t) | h5t_std_i8be
| H5T_STD_I8BE.
integer(hid_t) | h5t_std_i8le
| H5T_STD_I8LE.
integer(hid_t) | h5t_std_ref
| H5T_STD_REF.
integer(hid_t) | h5t_std_ref_dsetreg
| H5T_STD_REF_DSETREG.
integer(hid_t) | h5t_std_ref_obj
| H5T_STD_REF_OBJ.
integer(hid_t) | h5t_std_u16be
| H5T_STD_U16BE.
integer(hid_t) | h5t_std_u16le
| H5T_STD_U16LE.
integer(hid_t) | h5t_std_u32be
| H5T_STD_U32BE.
integer(hid_t) | h5t_std_u32le
| H5T_STD_U32LE.
integer(hid_t) | h5t_std_u64be
| H5T_STD_U64BE.
integer(hid_t) | h5t_std_u64le
| H5T_STD_U64LE.
integer(hid_t) | h5t_std_u8be
| H5T_STD_U8BE.
integer(hid_t) | h5t_std_u8le
| H5T_STD_U8LE.
integer | h5t_str_error_f
| H5T_STR_ERROR.
integer | h5t_str_nullpad_f
| H5T_STR_NULLPAD.
integer | h5t_str_nullterm_f
| H5T_STR_NULLTERM.
integer | h5t_str_spacepad_f
| H5T_STR_SPACEPAD.
integer(hid_t) | h5t_string
| H5T_STRING.
integer | h5t_string_f
| H5T_STRING.
integer | h5t_time_f
| H5T_TIME.
integer | h5t_vlen_f
| H5T_VLEN.

## Function/Subroutine Documentation

## ◆ h5tarray_create_f()

subroutine h5tarray_create_f | ( | integer(hid_t), intent(in) | base_id,
|  | integer, intent(in) | rank,
|  | integer(hsize_t), dimension(*), intent(in) | dims,
|  | integer(hid_t), intent(out) | type_id,
|  | integer, intent(out) | hdferr )

Creates an array datatype object.

Parameters

  base_id | Datatype identifier for the array base datatype
  rank | Rank of the array.
  dims | Array dimension sizes.
  type_id | Array datatype identifier.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tarray_create2()

## ◆ h5tclose_f()

subroutine h5tclose_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer, intent(out) | hdferr )

Releases a datatype.

Parameters

  type_id | Datatype identifier.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tclose()

## ◆ h5tcommit_anon_f()

subroutine h5tcommit_anon_f | ( | integer(hid_t), intent(in) | loc_id,
|  | integer(hid_t), intent(in) | dtype_id,
|  | integer, intent(out) | hdferr,
|  | integer(hid_t), intent(in), optional | tcpl_id,
|  | integer(hid_t), intent(in), optional | tapl_id )

Commits a transient datatype to a file, creating a new named datatype, but does not link it into the file structure.

Parameters

  loc_id | A file or group identifier specifying the file in which the new named datatype is to be created.
  dtype_id | A datatype identifier.
  hdferr | Returns 0 if successful and -1 if it fails.
  tcpl_id | A datatype creation property list identifier (H5P_DEFAULT_F for the default property list.)
  tapl_id | A datatype access property list identifier should always be passed as the value H5P_DEFAULT_F.

See C API: H5Tcommit_anon()

## ◆ h5tcommit_f()

subroutine h5tcommit_f | ( | integer(hid_t), intent(in) | loc_id,
|  | character(len=*), intent(in) | name,
|  | integer(hid_t), intent(in) | type_id,
|  | integer, intent(out) | hdferr,
|  | integer(hid_t), intent(in), optional | lcpl_id,
|  | integer(hid_t), intent(in), optional | tcpl_id,
|  | integer(hid_t), intent(in), optional | tapl_id )

Commits a transient datatype to a file, creating a new named datatype.

Parameters

  loc_id | Location identifier.
  name | Name of the datatype to be stored at the specified location
  type_id | Identifier of a datatype to be stored.
  hdferr | Returns 0 if successful and -1 if it fails.
  lcpl_id | Link creation property list.
  tcpl_id | Datatype creation property list.
  tapl_id | Datatype access property list.

See C API: H5Tcommit2()

## ◆ h5tcommitted_f()

subroutine h5tcommitted_f | ( | integer(hid_t), intent(in) | dtype_id,
|  | logical, intent(out) | committed,
|  | integer, intent(out) | hdferr )

Determines whether a datatype is a named type or a transient type.

Parameters

  dtype_id | A datatype identifier.
  committed | .TRUE. if the datatype has been committed, and .FALSE. if the datatype has not been committed.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tcommitted()

## ◆ h5tcompiler_conv_f()

subroutine h5tcompiler_conv_f | ( | integer(hid_t), intent(in) | src_id,
|  | integer(hid_t), intent(in) | dst_id,
|  | logical, intent(out) | flag,
|  | integer, intent(out) | hdferr )

Check whether the library's default conversion is hard conversion.

Parameters

  src_id | Identifier for the source datatype.
  dst_id | Identifier for the destination datatype.
  flag | .TRUE. for compiler conversion, .FALSE. for library conversion.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tcompiler_conv()

## ◆ h5tconvert_f()

subroutine h5tconvert_f | ( | integer(hid_t), intent(in) | src_id,
|  | integer(hid_t), intent(in) | dst_id,
|  | integer(size_t), intent(in) | nelmts,
|  | type(c_ptr), intent(in) | buf,
|  | integer, intent(out) | hdferr,
|  | type(c_ptr), intent(in), optional | background,
|  | integer(hid_t), intent(in), optional | plist_id )

Converts data from between specified datatypes.

Parameters

  src_id | Identifier for the source datatype.
  dst_id | Identifier for the destination datatype.
  nelmts | Size of array buf.
  buf | Array containing pre-conversion values.
  hdferr | Returns 0 if successful and -1 if it fails.
  background | Background buffer.
  plist_id | Dataset transfer property list identifier.

See C API: H5Tconvert()

## ◆ h5tcopy_f()

subroutine h5tcopy_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer(hid_t), intent(out) | new_type_id,
|  | integer, intent(out) | hdferr )

Creates a copy of existing datatype.

Parameters

  type_id | Datatype identifier.
  new_type_id | Identifier of datatype's copy.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tcopy()

## ◆ h5tcreate_f()

subroutine h5tcreate_f | ( | integer, intent(in) | class,
|  | integer(size_t), intent(in) | size,
|  | integer(hid_t), intent(out) | type_id,
|  | integer, intent(out) | hdferr )

Creates a new datatype.

Parameters

  class | Datatype class can be one of: H5T_COMPOUND_F H5T_ENUM_F H5T_OPAQUE_F H5T_STRING_F
  size | Size of the datatype.
  type_id | Datatype identifier.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tcreate()

## ◆ h5tdecode_f()

subroutine h5tdecode_f | ( | character(len=*), intent(in) | buf,
|  | integer(hid_t), intent(out) | obj_id,
|  | integer, intent(out) | hdferr,
|  | integer(size_t), intent(in), optional | buf_size )

Decode a binary object description of data type and return a new object handle.

Parameters

  buf | Buffer for the data space object to be decoded.
  obj_id | Object ID.
  hdferr | Returns 0 if successful and -1 if it fails.
  buf_size | Size of the buffer.

See C API: H5Tdecode2()

## ◆ h5tencode_f()

subroutine h5tencode_f | ( | integer(hid_t), intent(in) | obj_id,
|  | character(len=*), intent(out) | buf,
|  | integer(size_t), intent(inout) | nalloc,
|  | integer, intent(out) | hdferr )

Encode a data type object description into a binary buffer.

Parameters

  obj_id | Identifier of the object to be encoded.
  buf | Buffer for the object to be encoded into.
  nalloc | If set to zero, returns the size of the buffer needed. Otherwise, it sets the size of `buf` allocated.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tencode()

## ◆ h5tenum_create_f()

subroutine h5tenum_create_f | ( | integer(hid_t), intent(in) | parent_id,
|  | integer(hid_t), intent(out) | new_type_id,
|  | integer, intent(out) | hdferr )

Creates a new enumeration datatype.

Parameters

  parent_id | Datatype identifier for base datatype.
  new_type_id | Datatype identifier for the enumeration datatype.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tenum_create()

## ◆ h5tenum_insert_f() [1/2]

subroutine h5tenum_insert_f | ( | integer(hid_t), intent(in) | type_id,
|  | character(len=*), intent(in) | name,
|  | integer, intent(in) | value,
|  | integer, intent(out) | hdferr )

Inserts a new enumeration datatype member.

Attention
  Obsolete API, use the Fortran 2003 version instead.

Parameters

  type_id | Datatype identifier for the enumeration datatype.
  name | Datatype identifier.
  value | Value of the new member.
  hdferr | Returns 0 if successful and -1 if it fails.

## ◆ h5tenum_insert_f() [2/2]

subroutine h5tenum_insert_f | ( | integer(hid_t), intent(in) | type_id,
|  | character(len=*), intent(in) | name,
|  | type(c_ptr), intent(in) | value,
|  | integer, intent(out) | hdferr )

Inserts a new enumeration datatype member.

Attention
  The preferred API, Fortran 2003 version.

Parameters

  type_id | Datatype identifier for the enumeration datatype.
  name | Datatype identifier.
  value | Pointer to the value of the new member.
  hdferr | Returns 0 if successful and -1 if it fails.

## ◆ h5tenum_nameof_f()

subroutine h5tenum_nameof_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer, intent(in) | value,
|  | integer(size_t), intent(in) | namelen,
|  | character(len=*), intent(out) | name,
|  | integer, intent(out) | hdferr )

Returns the symbol name corresponding to a specified member of an enumeration datatype.

Parameters

  type_id | Datatype identifier.
  value | Value of the enumeration datatype.
  namelen | Name buffer size.
  name | Buffer to hold symbol name.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tenum_nameof()

## ◆ h5tenum_valueof_f()

subroutine h5tenum_valueof_f | ( | integer(hid_t), intent(in) | type_id,
|  | character(len=*), intent(in) | name,
|  | integer, intent(out) | value,
|  | integer, intent(out) | hdferr )

Returns the value corresponding to a specified member of an enumeration datatype.

Parameters

  type_id | Datatype identifier.
  name | Symbol name.
  value | Value of the enumeration datatype.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tenum_valueof()

## ◆ h5tequal_f()

subroutine h5tequal_f | ( | integer(hid_t), intent(in) | type1_id,
|  | integer(hid_t), intent(in) | type2_id,
|  | logical, intent(out) | flag,
|  | integer, intent(out) | hdferr )

Determines whether two datatype identifiers refer to the same datatype.

Parameters

  type1_id | Datatype identifier.
  type2_id | Datatype identifier.
  flag | TRUE/FALSE flag to indicate if two datatypes are equal.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tequal()

## ◆ h5tget_array_dims_f()

subroutine h5tget_array_dims_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer(hsize_t), dimension(*), intent(out) | dims,
|  | integer, intent(out) | hdferr )

Returns sizes of array dimensions.

Parameters

  type_id | Array datatype identifier.
  dims | Buffer to store array datatype dimensions.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tget_array_dims2()

## ◆ h5tget_array_ndims_f()

subroutine h5tget_array_ndims_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer, intent(out) | ndims,
|  | integer, intent(out) | hdferr )

Returns the rank of an array datatype.

Parameters

  type_id | Array datatype identifier.
  ndims | Number of array dimensions.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tget_array_ndims()

## ◆ h5tget_class_f()

subroutine h5tget_class_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer, intent(out) | class,
|  | integer, intent(out) | hdferr )

Returns the datatype class identifier.

Parameters

  type_id | Datatype identifier.
  class | Class, possible values are: H5T_NO_CLASS_F H5T_INTEGER_F H5T_FLOAT_F H5T_TIME_F H5T_STRING_F H5T_BITFIELD_F H5T_OPAQUE_F H5T_COMPOUND_F H5T_REFERENCE_F H5T_ENUM_F H5T_VLEN_F H5T_ARRAY_F H5T_COMPLEX_F
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tget_class()

## ◆ h5tget_create_plist_f()

subroutine h5tget_create_plist_f | ( | integer(hid_t), intent(in) | dtype_id,
|  | integer(hid_t), intent(out) | dtpl_id,
|  | integer, intent(out) | hdferr )

Returns a copy of a datatype creation property list.

Parameters

  dtype_id | Datatype identifier.
  dtpl_id | Datatype property list identifier.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tget_create_plist()

## ◆ h5tget_cset_f()

subroutine h5tget_cset_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer, intent(out) | cset,
|  | integer, intent(out) | hdferr )

Retrieves the character set type of a string datatype.

Parameters

  type_id | Datatype identifier.
  cset | Character set type of a string datatype. Possible values are: H5T_CSET_ASCII_F H5T_CSET_UTF8_F
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tget_cset()

## ◆ h5tget_ebias_f()

subroutine h5tget_ebias_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer(size_t), intent(out) | ebias,
|  | integer, intent(out) | hdferr )

Retrieves the exponent bias of a floating-point type.

Parameters

  type_id | Datatype identifier.
  ebias | Datatype exponent bias.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tget_ebias()

## ◆ h5tget_fields_f()

subroutine h5tget_fields_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer(size_t), intent(out) | spos,
|  | integer(size_t), intent(out) | epos,
|  | integer(size_t), intent(out) | esize,
|  | integer(size_t), intent(out) | mpos,
|  | integer(size_t), intent(out) | msize,
|  | integer, intent(out) | hdferr )

Retrieves floating point datatype bit field information.

Parameters

  type_id | Datatype identifier.
  spos | Sign bit-position.
  epos | Exponent bit-position.
  esize | Size of exponent in bits.
  mpos | Mantissa position.
  msize | Size of mantissa in bits.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tget_fields()

## ◆ h5tget_inpad_f()

subroutine h5tget_inpad_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer, intent(out) | padtype,
|  | integer, intent(out) | hdferr )

Retrieves the internal padding type for unused bits in floating-point datatypes.

Parameters

  type_id | Datatype identifier.
  padtype | Padding type for unused bits. Possible values are: H5T_PAD_ZERO_F H5T_PAD_ONE_F H5T_PAD_BACKGROUND_F
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tget_inpad()

## ◆ h5tget_member_class_f()

subroutine h5tget_member_class_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer, intent(in) | member_no,
|  | integer, intent(out) | class,
|  | integer, intent(out) | hdferr )

Returns datatype class of compound datatype member.

Parameters

  type_id | Datatype identifier.
  member_no | Index of compound datatype member.
  class | Class type for compound datatype member. Valid classes: H5T_NO_CLASS_F (error) H5T_INTEGER_F H5T_FLOAT_F H5T_TIME_F H5T_STRING_F H5T_BITFIELD_F H5T_OPAQUE_F H5T_COMPOUND_F H5T_REFERENCE_F H5T_ENUM_F H5T_VLEN_F H5T_ARRAY_F H5T_COMPLEX_F
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tget_member_class()

## ◆ h5tget_member_index_f()

subroutine h5tget_member_index_f | ( | integer(hid_t), intent(in) | type_id,
|  | character(len=*), intent(in) | name,
|  | integer, intent(out) | index,
|  | integer, intent(out) | hdferr )

Retrieves the index of a compound or enumeration datatype member.

Parameters

  type_id | Datatype identifier.
  name | Name of the field or member whose index to be retrieved from the datatype.
  index | Based index of the filed or member (0 to N-1).
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tget_member_index()

## ◆ h5tget_member_name_f()

subroutine h5tget_member_name_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer, intent(in) | index,
|  | character(len=*), intent(out) | member_name,
|  | integer, intent(out) | namelen,
|  | integer, intent(out) | hdferr )

Retrieves the name of a field of a compound datatype.

Parameters

  type_id | Datatype identifier.
  index | Filed index (0-based).
  member_name | Buffer to hold member's name.
  namelen | Name length.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tget_member_name()

## ◆ h5tget_member_offset_f()

subroutine h5tget_member_offset_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer, intent(in) | member_no,
|  | integer(size_t), intent(out) | offset,
|  | integer, intent(out) | hdferr )

Retrieves the offset of a field of a compound datatype.

Parameters

  type_id | Datatype identifier.
  member_no | Number of the field.
  offset | Byte offset of the requested field.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tget_member_offset()

## ◆ h5tget_member_type_f()

subroutine h5tget_member_type_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer, intent(in) | field_idx,
|  | integer(hid_t), intent(out) | datatype,
|  | integer, intent(out) | hdferr )

Returns the datatype of the specified member.

Parameters

  type_id | Compound datatype identifier.
  field_idx | Field index (0-based).
  datatype | Identifier of the member's datatype.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tget_member_type()

## ◆ h5tget_member_value_f()

subroutine h5tget_member_value_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer, intent(in) | member_no,
|  | integer, intent(out) | value,
|  | integer, intent(out) | hdferr )

Returns the value of an enumeration datatype member.

Parameters

  type_id | Datatype identifier.
  member_no | Number of the enumeration datatype member.
  value | Value of the enumeration datatype.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tget_member_value()

## ◆ h5tget_native_type_f()

subroutine h5tget_native_type_f | ( | integer(hid_t), intent(in) | dtype_id,
|  | integer, intent(in) | direction,
|  | integer(hid_t), intent(out) | native_dtype_id,
|  | integer, intent(out) | hdferr )

Returns the native datatype of a specified datatype.

Parameters

  dtype_id | Datatype identifier for the dataset datatype.
  direction | Direction of search: H5T_DIR_DEFAULT, default direction is inscendent, H5T_DIR_ASCEND , in inscendent order, H5T_DIR_DESCEND, in descendent order. NOTE: In C it is defined as a structure: H5T_direction_t
  native_dtype_id | The native datatype identifier for the specified dataset datatype.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tget_native_type()

## ◆ h5tget_nmembers_f()

subroutine h5tget_nmembers_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer, intent(out) | num_members,
|  | integer, intent(out) | hdferr )

Retrieves the number of fields in a compound datatype.

Parameters

  type_id | Datatype identifier.
  num_members | Number of members.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tget_nmembers()

## ◆ h5tget_norm_f()

subroutine h5tget_norm_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer, intent(out) | norm,
|  | integer, intent(out) | hdferr )

Retrieves mantissa normalization of a floating-point datatype.

Parameters

  type_id | Datatype identifier.
  norm | Normalization types, valid values are: H5T_NORM_IMPLIED_F H5T_NORM_MSBSET_F H5T_NORM_NONE_F
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tget_norm()

## ◆ h5tget_offset_f()

subroutine h5tget_offset_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer(size_t), intent(out) | offset,
|  | integer, intent(out) | hdferr )

Retrieves the bit offset of the first significant bit.

Parameters

  type_id | Datatype identifier.
  offset | Offset value.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tget_offset()

## ◆ h5tget_order_f()

subroutine h5tget_order_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer, intent(out) | order,
|  | integer, intent(out) | hdferr )

Returns the byte order of an atomic datatype.

Parameters

  type_id | Datatype identifier.
  order | Byte order for the datatype, possible values are: H5T_ORDER_LE_F H5T_ORDER_BE_F H5T_ORDER_VAX_F (not implemented yet)
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tget_order()

## ◆ h5tget_pad_f()

subroutine h5tget_pad_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer, intent(out) | lsbpad,
|  | integer, intent(out) | msbpad,
|  | integer, intent(out) | hdferr )

Retrieves the padding type of the least and most-significant bit padding.

Parameters

  type_id | Datatype identifier.
  lsbpad | Least-significant bit padding type.
  msbpad | Most-significant bit padding type. Possible values are: H5T_PAD_ERROR_F H5T_PAD_ZERO_F H5T_PAD_ONE_F H5T_PAD_BACKGROUND_F H5T_PAD_NPAD_F
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tget_pad()

## ◆ h5tget_precision_f()

subroutine h5tget_precision_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer(size_t), intent(out) | precision,
|  | integer, intent(out) | hdferr )

Returns the precision of an atomic datatype.

Parameters

  type_id | Datatype identifier.
  precision | Precision of the datatype.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tget_precision()

## ◆ h5tget_sign_f()

subroutine h5tget_sign_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer, intent(out) | sign,
|  | integer, intent(out) | hdferr )

Retrieves the sign type for an integer type.

Parameters

  type_id | Datatype identifier.
  sign | Sign type. Possible values are: Unsigned integer type H5T_SGN_NONE_F = 0 Two's complement signed integer type H5T_SGN_2_F = 1 Error value H5T_SGN_ERROR_F = -1
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tget_sign()

## ◆ h5tget_size_f()

subroutine h5tget_size_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer(size_t), intent(out) | size,
|  | integer, intent(out) | hdferr )

Returns the size of a datatype.

Parameters

  type_id | Datatype identifier.
  size | Datatype size.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tget_size()

## ◆ h5tget_strpad_f()

subroutine h5tget_strpad_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer, intent(out) | strpad,
|  | integer, intent(out) | hdferr )

Retrieves the storage mechanism for a string datatype.

Parameters

  type_id | Datatype identifier.
  strpad | Storage method for a string datatype. Possible values are: H5T_STR_NULLTERM_F H5T_STR_NULLPAD_F H5T_STR_SPACEPAD_F H5T_STR_ERROR_F
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tget_strpad()

## ◆ h5tget_super_f()

subroutine h5tget_super_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer(hid_t), intent(out) | base_type_id,
|  | integer, intent(out) | hdferr )

Returns the base datatype from which a datatype is derived.

Parameters

  type_id | Datatype identifier.
  base_type_id | Identifier of the base type.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tget_super()

## ◆ h5tget_tag_f()

subroutine h5tget_tag_f | ( | integer(hid_t), intent(in) | type_id,
|  | character(len=*), intent(out) | tag,
|  | integer, intent(out) | taglen,
|  | integer, intent(out) | hdferr )

Gets the tag associated with an opaque datatype.

Parameters

  type_id | Identifier for opaque datatype.
  tag | Unique ASCII string associated with opaque datatype.
  taglen | Length of tag.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tget_tag()

## ◆ h5tinsert_f()

subroutine h5tinsert_f | ( | integer(hid_t), intent(in) | type_id,
|  | character(len=*), intent(in) | name,
|  | integer(size_t), intent(in) | offset,
|  | integer(hid_t), intent(in) | field_id,
|  | integer, intent(out) | hdferr )

Adds a new member to a compound datatype.

Parameters

  type_id | Compound datatype identifier.
  name | Name of the field to insert.
  offset | Start of the member in an instance of the compound datatype.
  field_id | Datatype identifier of the field to insert.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tinsert()

## ◆ h5tis_variable_str_f()

subroutine h5tis_variable_str_f | ( | integer(hid_t), intent(in) | type_id,
|  | logical, intent(out) | status,
|  | integer, intent(out) | hdferr )

Determines whether a dattype is a variable string.

Parameters

  type_id | Datartpe identifier.
  status | Flag to indicate if datatype is a variable string ( TRUE or FALSE).
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tis_variable_str()

## ◆ h5topen_f()

subroutine h5topen_f | ( | integer(hid_t), intent(in) | loc_id,
|  | character(len=*), intent(in) | name,
|  | integer(hid_t), intent(out) | type_id,
|  | integer, intent(out) | hdferr,
|  | integer(hid_t), intent(in), optional | tapl_id )

Opens named datatype.

Parameters

  loc_id | Location identifier.
  name | A datatype name.
  type_id | Datatype identifier.
  hdferr | Returns 0 if successful and -1 if it fails.
  tapl_id | Datatype access property list identifier.

See C API: H5Topen2()

## ◆ h5tpack_f()

subroutine h5tpack_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer, intent(out) | hdferr )

Recursively removes padding from within a compound datatype.

Parameters

  type_id | Compound datatype identifier.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tpack()

## ◆ h5tset_cset_f()

subroutine h5tset_cset_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer, intent(in) | cset,
|  | integer, intent(out) | hdferr )

Sets character set to be used.

Parameters

  type_id | Datatype identifier.
  cset | Character set type of a string datatype. Possible values are: H5T_CSET_ASCII_F H5T_CSET_UTF8_F
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tset_cset()

## ◆ h5tset_ebias_f()

subroutine h5tset_ebias_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer(size_t), intent(in) | ebias,
|  | integer, intent(out) | hdferr )

Sets the exponent bias of a floating-point type.

Parameters

  type_id | Datatype identifier.
  ebias | Datatype exponent bias.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tset_ebias()

## ◆ h5tset_fields_f()

subroutine h5tset_fields_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer(size_t), intent(in) | spos,
|  | integer(size_t), intent(in) | epos,
|  | integer(size_t), intent(in) | esize,
|  | integer(size_t), intent(in) | mpos,
|  | integer(size_t), intent(in) | msize,
|  | integer, intent(out) | hdferr )

Sets locations and sizes of floating point bit fields.

Parameters

  type_id | Datatype identifier.
  spos | Sign bit-position.
  epos | Exponent bit-position.
  esize | Size of exponent in bits.
  mpos | Mantissa position.
  msize | Size of mantissa in bits.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tset_fields()

## ◆ h5tset_inpad_f()

subroutine h5tset_inpad_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer, intent(in) | padtype,
|  | integer, intent(out) | hdferr )

Fills unused internal floating point bits.

Parameters

  type_id | Datatype identifier.
  padtype | Padding type for unused bits. Possible values are: H5T_PAD_ZERO_F H5T_PAD_ONE_F H5T_PAD_BACKGROUND_F
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tset_inpad()

## ◆ h5tset_norm_f()

subroutine h5tset_norm_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer, intent(in) | norm,
|  | integer, intent(out) | hdferr )

Sets the mantissa normalization of a floating-point datatype.

Parameters

  type_id | Datatype identifier.
  norm | Normalization types, valid values are: H5T_NORM_IMPLIED_F H5T_NORM_MSBSET_F H5T_NORM_NONE_F
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tset_norm()

## ◆ h5tset_offset_f()

subroutine h5tset_offset_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer(size_t), intent(in) | offset,
|  | integer, intent(out) | hdferr )

Sets the bit offset of the first significant bit.

Parameters

  type_id | Datatype identifier.
  offset | Offset value.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tset_offset()

## ◆ h5tset_order_f()

subroutine h5tset_order_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer, intent(in) | order,
|  | integer, intent(out) | hdferr )

Sets the byte ordering of an atomic datatype.

Parameters

  type_id | Datatype identifier.
  order | Datatype byte order Possible values are: H5T_ORDER_LE_F H5T_ORDER_BE_F H5T_ORDER_VAX_F (not implemented yet)
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tset_order()

## ◆ h5tset_pad_f()

subroutine h5tset_pad_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer, intent(in) | lsbpad,
|  | integer, intent(in) | msbpad,
|  | integer, intent(out) | hdferr )

Sets the least and most-significant bits padding types.

Parameters

  type_id | Datatype identifier.
  lsbpad | Least-significant bit padding type.
  msbpad | Most-significant bit padding type. Possible values are: H5T_PAD_ERROR_F H5T_PAD_ZERO_F H5T_PAD_ONE_F H5T_PAD_BACKGROUND_F H5T_PAD_NPAD_F
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tset_pad()

## ◆ h5tset_precision_f()

subroutine h5tset_precision_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer(size_t), intent(in) | precision,
|  | integer, intent(out) | hdferr )

Sets the precision of an atomic datatype.

Parameters

  type_id | Datatype identifier.
  precision | Datatype precision.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tset_precision()

## ◆ h5tset_sign_f()

subroutine h5tset_sign_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer, intent(in) | sign,
|  | integer, intent(out) | hdferr )

Sets the sign property for an integer type.

Parameters

  type_id | Datatype identifier.
  sign | Sign type. Possible values are: Unsigned integer type H5T_SGN_NONE_F = 0 Two's complement signed integer type H5T_SGN_2_F = 1 Error value H5T_SGN_ERROR_F = -1
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tset_sign()

## ◆ h5tset_size_f()

subroutine h5tset_size_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer(size_t), intent(in) | size,
|  | integer, intent(out) | hdferr )

Sets the total size for an atomic datatype.

Parameters

  type_id | Datatype identifier.
  size | Size of the datatype.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tset_size()

## ◆ h5tset_strpad_f()

subroutine h5tset_strpad_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer, intent(in) | strpad,
|  | integer, intent(out) | hdferr )

Defines the storage mechanism for character strings.

Parameters

  type_id | Datatype identifier.
  strpad | Storage method for a string datatype. Possible values are: H5T_STR_NULLTERM_F H5T_STR_NULLPAD_F H5T_STR_SPACEPAD_F H5T_STR_ERROR_F
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tset_strpad()

## ◆ h5tset_tag_f()

subroutine h5tset_tag_f | ( | integer(hid_t), intent(in) | type_id,
|  | character(len=*), intent(in) | tag,
|  | integer, intent(out) | hdferr )

Tags an opaque datatype.

Parameters

  type_id | Identifier for opaque datatype.
  tag | Unique ASCII string with which the opaque datatype is to be tagged.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tset_tag()

## ◆ h5tvlen_create_f()

subroutine h5tvlen_create_f | ( | integer(hid_t), intent(in) | type_id,
|  | integer(hid_t), intent(out) | vltype_id,
|  | integer, intent(out) | hdferr )

Creates a new variable-length datatype.

Parameters

  type_id | Identifier iof base datatype.
  vltype_id | Identifier for VL datatype.
  hdferr | Returns 0 if successful and -1 if it fails.

See C API: H5Tvlen_create()

## Variable Documentation

## ◆ h5t_array_f

integer h5t_array_f

H5T_ARRAY.

## ◆ h5t_bitfield_f

integer h5t_bitfield_f

H5T_BITFIELD.

## ◆ h5t_c_s1

integer(hid_t) h5t_c_s1

H5T_C_S1.

## ◆ h5t_complex_f

integer h5t_complex_f

H5T_COMPLEX.

## ◆ h5t_compound_f

integer h5t_compound_f

H5T_COMPOUND.

## ◆ h5t_cset_ascii_f

integer h5t_cset_ascii_f

H5T_CSET_ASCII.

## ◆ h5t_cset_utf8_f

integer h5t_cset_utf8_f

H5T_CSET_UTF8.

## ◆ h5t_dir_ascend_f

integer h5t_dir_ascend_f

H5T_DIR_ASCEND.

## ◆ h5t_dir_descend_f

integer h5t_dir_descend_f

H5T_DIR_DESCEND.

## ◆ h5t_enum_f

integer h5t_enum_f

H5T_ENUM.

## ◆ h5t_float_bfloat16be

integer(hid_t) h5t_float_bfloat16be

H5T_FLOAT_BFLOAT16BE.

## ◆ h5t_float_bfloat16le

integer(hid_t) h5t_float_bfloat16le

H5T_FLOAT_BFLOAT16LE.

## ◆ h5t_float_f

integer h5t_float_f

H5T_FLOAT.

## ◆ h5t_float_f4e2m1

integer(hid_t) h5t_float_f4e2m1

H5T_FLOAT_F4E2M1.

## ◆ h5t_float_f6e2m3

integer(hid_t) h5t_float_f6e2m3

H5T_FLOAT_F6E2M3.

## ◆ h5t_float_f6e3m2

integer(hid_t) h5t_float_f6e3m2

H5T_FLOAT_F6E3M2.

## ◆ h5t_float_f8e4m3

integer(hid_t) h5t_float_f8e4m3

H5T_FLOAT_F8E4M3.

## ◆ h5t_float_f8e5m2

integer(hid_t) h5t_float_f8e5m2

H5T_FLOAT_F8E5M2.

## ◆ h5t_fortran_s1

integer(hid_t) h5t_fortran_s1

H5T_FORTRAN_S1.

## ◆ h5t_ieee_f16be

integer(hid_t) h5t_ieee_f16be

H5T_IEEE_F16BE.

## ◆ h5t_ieee_f16le

integer(hid_t) h5t_ieee_f16le

H5T_IEEE_F16LE.

## ◆ h5t_ieee_f32be

integer(hid_t) h5t_ieee_f32be

H5T_IEEE_F32BE.

## ◆ h5t_ieee_f32le

integer(hid_t) h5t_ieee_f32le

H5T_IEEE_F32LE.

## ◆ h5t_ieee_f64be

integer(hid_t) h5t_ieee_f64be

H5T_IEEE_F64BE.

## ◆ h5t_ieee_f64le

integer(hid_t) h5t_ieee_f64le

H5T_IEEE_F64LE.

## ◆ h5t_integer_f

integer h5t_integer_f

H5T_INTEGER.

## ◆ h5t_native_b16

integer(hid_t) h5t_native_b16

H5T_NATIVE_B16.

## ◆ h5t_native_b32

integer(hid_t) h5t_native_b32

H5T_NATIVE_B32.

## ◆ h5t_native_b64

integer(hid_t) h5t_native_b64

H5T_NATIVE_B64.

## ◆ h5t_native_b8

integer(hid_t) h5t_native_b8

H5T_NATIVE_B8.

## ◆ h5t_native_character

integer(hid_t) h5t_native_character

H5T_NATIVE_CHARACTER.

## ◆ h5t_native_double

integer(hid_t) h5t_native_double

H5T_NATIVE_DOUBLE.

## ◆ h5t_native_float_128

integer(hid_t) h5t_native_float_128

Quadruple-precision floating-point.

## ◆ h5t_native_integer

integer(hid_t) h5t_native_integer

H5T_NATIVE_INTEGER.

## ◆ h5t_native_real

integer(hid_t) h5t_native_real

H5T_NATIVE_REAL.

## ◆ h5t_native_real_c_double

integer(hid_t) h5t_native_real_c_double

H5T_NATIVE_REAL_C_DOUBLE.

## ◆ h5t_native_real_c_float

integer(hid_t) h5t_native_real_c_float

H5T_NATIVE_REAL_C_FLOAT.

## ◆ h5t_native_real_c_long_double

integer(hid_t) h5t_native_real_c_long_double

H5T_NATIVE_REAL_C_LONG_DOUBLE.

## ◆ h5t_no_class_f

integer h5t_no_class_f

H5T_NO_CLASS.

## ◆ h5t_norm_implied_f

integer h5t_norm_implied_f

H5T_NORM_IMPLIED.

## ◆ h5t_norm_msbset_f

integer h5t_norm_msbset_f

H5T_NORM_MSBSET.

## ◆ h5t_norm_none_f

integer h5t_norm_none_f

H5T_NORM_NONE.

## ◆ h5t_opaque_f

integer h5t_opaque_f

H5T_OPAQUE.

## ◆ h5t_order_be_f

integer h5t_order_be_f

H5T_ORDER_BE.

## ◆ h5t_order_le_f

integer h5t_order_le_f

H5T_ORDER_LE.

## ◆ h5t_order_mixed_f

integer h5t_order_mixed_f

H5T_ORDER_MIXED.

## ◆ h5t_order_none_f

integer h5t_order_none_f

H5T_ORDER_NONE.

## ◆ h5t_order_vax_f

integer h5t_order_vax_f

H5T_ORDER_VAX.

## ◆ h5t_pad_background_f

integer h5t_pad_background_f

H5T_PAD_BACKGROUND.

## ◆ h5t_pad_error_f

integer h5t_pad_error_f

H5T_PAD_ERROR.

## ◆ h5t_pad_one_f

integer h5t_pad_one_f

H5T_PAD_ONE.

## ◆ h5t_pad_zero_f

integer h5t_pad_zero_f

H5T_PAD_ZERO.

## ◆ h5t_reference_f

integer h5t_reference_f

H5T_REFERENCE.

## ◆ h5t_sgn_2_f

integer h5t_sgn_2_f

H5T_SGN_2.

## ◆ h5t_sgn_error_f

integer h5t_sgn_error_f

H5T_SGN_ERROR.

## ◆ h5t_sgn_none_f

integer h5t_sgn_none_f

H5T_SGN_NONE.

## ◆ h5t_std_b16be

integer(hid_t) h5t_std_b16be

H5T_STD_B16BE.

## ◆ h5t_std_b16le

integer(hid_t) h5t_std_b16le

H5T_STD_B16LE.

## ◆ h5t_std_b32be

integer(hid_t) h5t_std_b32be

H5T_STD_B32BE.

## ◆ h5t_std_b32le

integer(hid_t) h5t_std_b32le

H5T_STD_B32LE.

## ◆ h5t_std_b64be

integer(hid_t) h5t_std_b64be

H5T_STD_B64BE.

## ◆ h5t_std_b64le

integer(hid_t) h5t_std_b64le

H5T_STD_B64LE.

## ◆ h5t_std_b8be

integer(hid_t) h5t_std_b8be

H5T_STD_B8BE.

## ◆ h5t_std_b8le

integer(hid_t) h5t_std_b8le

H5T_STD_B8LE.

## ◆ h5t_std_i16be

integer(hid_t) h5t_std_i16be

H5T_STD_I16BE.

## ◆ h5t_std_i16le

integer(hid_t) h5t_std_i16le

H5T_STD_I16LE.

## ◆ h5t_std_i32be

integer(hid_t) h5t_std_i32be

H5T_STD_I32BE.

## ◆ h5t_std_i32le

integer(hid_t) h5t_std_i32le

H5T_STD_I32LE.

## ◆ h5t_std_i64be

integer(hid_t) h5t_std_i64be

H5T_STD_I64BE.

## ◆ h5t_std_i64le

integer(hid_t) h5t_std_i64le

H5T_STD_I64LE.

## ◆ h5t_std_i8be

integer(hid_t) h5t_std_i8be

H5T_STD_I8BE.

## ◆ h5t_std_i8le

integer(hid_t) h5t_std_i8le

H5T_STD_I8LE.

## ◆ h5t_std_ref

integer(hid_t) h5t_std_ref

H5T_STD_REF.

## ◆ h5t_std_ref_dsetreg

integer(hid_t) h5t_std_ref_dsetreg

H5T_STD_REF_DSETREG.

## ◆ h5t_std_ref_obj

integer(hid_t) h5t_std_ref_obj

H5T_STD_REF_OBJ.

## ◆ h5t_std_u16be

integer(hid_t) h5t_std_u16be

H5T_STD_U16BE.

## ◆ h5t_std_u16le

integer(hid_t) h5t_std_u16le

H5T_STD_U16LE.

## ◆ h5t_std_u32be

integer(hid_t) h5t_std_u32be

H5T_STD_U32BE.

## ◆ h5t_std_u32le

integer(hid_t) h5t_std_u32le

H5T_STD_U32LE.

## ◆ h5t_std_u64be

integer(hid_t) h5t_std_u64be

H5T_STD_U64BE.

## ◆ h5t_std_u64le

integer(hid_t) h5t_std_u64le

H5T_STD_U64LE.

## ◆ h5t_std_u8be

integer(hid_t) h5t_std_u8be

H5T_STD_U8BE.

## ◆ h5t_std_u8le

integer(hid_t) h5t_std_u8le

H5T_STD_U8LE.

## ◆ h5t_str_error_f

integer h5t_str_error_f

H5T_STR_ERROR.

## ◆ h5t_str_nullpad_f

integer h5t_str_nullpad_f

H5T_STR_NULLPAD.

## ◆ h5t_str_nullterm_f

integer h5t_str_nullterm_f

H5T_STR_NULLTERM.

## ◆ h5t_str_spacepad_f

integer h5t_str_spacepad_f

H5T_STR_SPACEPAD.

## ◆ h5t_string

integer(hid_t) h5t_string

H5T_STRING.

## ◆ h5t_string_f

integer h5t_string_f

H5T_STRING.

## ◆ h5t_time_f

integer h5t_time_f

H5T_TIME.

## ◆ h5t_vlen_f

integer h5t_vlen_f

H5T_VLEN.