H5Pget_filter is a macro that is mapped to either
H5Pget_filter1 or
H5Pget_filter2,
depending on the needs of the application.
Such macros are provided to facilitate application compatibility. For example:
H5Pget_filter macro
will be mapped to H5Pget_filter1 and
will use the H5Pget_filter1 syntax
(first signature above)
if an application is coded for HDF5 Release 1.6.x.
H5Pget_filter macro
mapped to H5Pget_filter2 and
will use the H5Pget_filter2 syntax
(second signature above)
if an application is coded for HDF5 Release 1.8.x.
For more information on macro use and mappings, see the “API Compatibility Macros in HDF5” document.
When both the HDF5 Library and the application are built and
installed with no specific compatibility flags,
H5Pget_filter is mapped to the most recent version of
the function, currently
H5Pget_filter2.
If the library and/or application is compiled for Release 1.6
emulation, H5Pget_filter will be mapped to
H5Pget_filter1.
Function-specific flags are available to override these settings
on a function-by-function basis when the application is compiled.
Specific compile-time compatibility flags and the resulting mappings are as follows:
| Compatibility setting | H5Pget_filter mapping |
|---|---|
Global settings |
|
| No compatibility flag | H5Pget_filter2 |
| Enable deprecated symbols | H5Pget_filter2 |
| Disable deprecated symbols | H5Pget_filter2 |
Emulate Release 1.6 interface |
H5Pget_filter1 |
Function-level macros |
|
H5Pget_filter_vers = 2 |
H5Pget_filter2 |
H5Pget_filter_vers = 1 |
H5Pget_filter1 |
H5Pget_filter interface
and the only interface available prior to HDF5 Release 1.8.0.
This signature and the corresponding function are now deprecated
but will remain directly callable as
H5Pget_filter1.
Signature [2] above was introduced with HDF5 Release 1.8.0
and is the recommended and default interface.
It is directly callable as
H5Pget_filter2.
See “API Compatibility Macros in HDF5” for circumstances under which either of these functions might not be available in an installed instance of the HDF5 Library.
SUBROUTINE h5pget_filter_f(prp_id, filter_number, flags, cd_nelmts,
cd_values, namelen, name, filter_id, hdferr)
IMPLICIT NONE
INTEGER(HID_T), INTENT(IN) :: prp_id ! Property list identifier
INTEGER, INTENT(IN) :: filter_number ! Sequence number within the filter
! pipeline of the filter for which
! information is sought
INTEGER, DIMENSION(*), INTENT(OUT) :: cd_values
! Auxiliary data for the filter
INTEGER, INTENT(OUT) :: flags ! Bit vector specifying certain
! general properties of the filter
INTEGER(SIZE_T), INTENT(INOUT) :: cd_nelmts
! Number of elements in cd_values
INTEGER(SIZE_T), INTENT(IN) :: namelen ! Anticipated number of characters
! in name
CHARACTER(LEN=*), INTENT(OUT) :: name ! Name of the filter
INTEGER, INTENT(OUT) :: filter_id ! Filter identification number
INTEGER, INTENT(OUT) :: hdferr ! Error code
! 0 on success and -1 on failure
END SUBROUTINE h5pget_filter_f
| Release | C |
| 1.8.0 | The function
H5Pget_filter renamed to H5Pget_filter1
and deprecated in this release.
The macro H5Pget_filter
and the function H5Pget_filter2
introduced in this release. |