H5Awrite(hid_t attr_id,
hid_t mem_type_id,
const void *buf
)
H5Awrite writes an attribute, specified with
attr_id. The attribute's memory datatype
is specified with mem_type_id. The entire
attribute is written from buf to the file.
If mem_type_id is either a fixed-length or
variable-length string, it is important to set the string length
when defining the datatype.
String datatypes are derived from H5T_C_S1
(or H5T_FORTRAN_S1 for Fortran codes),
which defaults to 1 character in size.
See H5Tset_size
and “Creating
variable-length string datatypes.”
Datatype conversion takes place at the time of a read or write and is automatic. See the “Data Transfer: Datatype Conversion and Selection” section in the “HDF5 Datatypes” chapter of the HDF5 User’s Guide for a discussion of data conversion.
hid_t attr_id |
IN: Identifier of an attribute to write. |
hid_t mem_type_id |
IN: Identifier of the attribute datatype (in memory). |
const void *buf |
IN: Data to be written. |
H5Tset_size
| Release | Change |
| 1.8.8 | Fortran updated to Fortran2003. |
| 1.4.2 |
Fortran dims parameter added in this release. |