H5Tvlen_create
(
hid_t base_type_id
)
H5Tvlen_create
creates a new one-dimensional array datatype
of variable-length (VL) with the base datatype base_type_id
.
This one-dimensional array often represents a data sequence of the base datatype, such as characters for character sequences or vertex coordinates for polygon lists. The base type specified for the VL datatype can be any HDF5 datatype, including another VL datatype, a compound datatype, or an atomic datatype.
When necessary, use H5Tget_super
to determine the base type
of the VL datatype.
The datatype identifier returned from this function should be
released with H5Tclose
or resource leaks will result.
Under certain circumstances,
H5Dvlen_reclaim
must also be used.
H5Tvlen_create
cannot be used to create a
variable-length string datatype.
H5Tvlen_create
called with a string or character
base type creates a variable-length sequence of strings
(a variable-length, 1-dimensional array), with each element
of the array being of the string or character base type.
To create a variable-length string datatype, see “Creating variable-length string datatypes.”
hid_t base_type_id |
IN: Base type of datatype to create. |
H5Dvlen_get_buf_size
H5Dvlen_reclaim
SUBROUTINE h5tvlen_create_f(type_id, vltype_id, hdferr) IMPLICIT NONE INTEGER(HID_T), INTENT(IN) :: type_id ! Datatype identifier of base type ! Base type can only be atomic INTEGER(HID_T), INTENT(OUT) :: vltype_id ! VL datatype identifier INTEGER, INTENT(OUT) :: hdferr ! Error code END SUBROUTINE h5tvlen_create_f
Release | Change |
1.4.5 | Fortran subroutine introduced in this release. |