If using 1.10 (1.10.3+) and encountering performance issues, please use H5O_VISIT_BY_NAME2to limit the fields retrieved, which can help with performance.
Specific compile-time compatibility flags and the resulting mappings are as follows:
No compatibility flag
H5O_VISIT_BY_NAME3 for 1.12 and above
H5O_VISIT_BY_NAME1 for 1.10 or 1.8
Emulate Release 1.12 interface
Emulate Release 1.10 or1.8 interface
The macro H5O_VISIT_BY_NAME and function H5O_VISIT_BY_NAME3 were added.
The macro H5O_VISIT_BY_NAME was removed. The functions H5O_VISIT_BY_NAME and H5O_VISIT_BY_NAME1 are identical in this release. This change was added to restore the broken API compatibility introduced in HDF5-1.10.3.
The function H5O_VISIT_BY_NAME was renamed to H5O_VISIT_BY_NAME1. The macro H5O_VISIT_BY_NAME and the function H5O_VISIT_BY_NAME2 were introduced in this release.