When looping over h50get_info_by_idx or h5lget_name_by_idx how do I determine the upper bound for idx?
The number of links in a group can be retrieved from the
nlinks field in the
H5G_info_t structure returned by
H5Gget_info (https://portal.hdfgroup.org/display/HDF5/H5G_GET_INFO). That’s the smallest “upper bound” for valid positions passed into
H5Oget_info_by_index the story is a little more complicated, because it is possible that some of the links cannot be traversed / resolved to objects (groups, datasets, committed datatypes), e.g., a soft link that has the empty string as its destination.