Opens a committed (named) datatype
Signature:
hid_t H5Topen( hid_t loc_id, const char * name )
hid_t H5Topen( hid_t loc_id, const char * name, hid_t tapl_id )
Description:
H5T_OPEN is a macro that is mapped to either H5T_OPEN1 or H5T_OPEN2, depending on the needs of the application.
Such macros are provided to facilitate application compatibility. Their use and mappings are fully described in API Compatibility Macros in HDF5; we urge you to read that document closely.
When both the HDF5 library and the application are built and installed with no specific compatibility flags, H5T_OPEN is mapped to the most recent version of the function, currently H5T_OPEN2 . If the library and/or application is compiled for Release 1.6 emulation, H5T_OPEN will be mapped to H5T_OPEN1 . 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 | H5Topen mapping |
|---|
Global settings |
| No compatibility flag | H5Topen2 |
| Enable deprecated symbols | H5Topen2 |
| Disable deprecated symbols | H5Topen2 |
Emulate Release 1.6 interface | H5Topen1 |
Function-level macros |
H5Topen_vers = 2 | H5Topen2 |
H5Topen_vers = 1 | H5Topen1 |
The datatype identifier returned by this macro can be released with H5T_CLOSE when the identifier is no longer needed so that resource leaks will not develop.
History:
| Release | Change |
|---|
| 1.8.0 | The function H5Topen renamed to H5Topen1 and deprecated in this release.
The macro H5Topen and the function H5Topen2 introduced in this release. |
--- Last Modified: May 23, 2019 | 03:14 PM
