Is there a way to traverse Groups, starting at the root

[josiahslack]

I've been experimenting with HighFive over the past few days, and have mostly been able to figure out how to do what I wanted. However, today I needed the capability of opening an HDF5 file and walking through the tree of Groups. I dug around the examples and the source, but didn't find anything promising. What am I missing?

[1uc]

You can try one of these:
https://github.com/BlueBrain/HighFive/blob/master/include/highfive/bits/H5Node_traits.hpp#L135
https://github.com/BlueBrain/HighFive/blob/master/include/highfive/bits/H5Node_traits.hpp#L130

Or
https://github.com/BlueBrain/HighFive/blob/master/include/highfive/bits/H5Node_traits.hpp#L158

Which gives you control over the order in which you'd access the object. Not all IndexTypes are available by default, depending on how the file was created. The order can sometimes matter a lot in terms of performance. However, as with anything performance related, first establish if you need to worry about performance, then measure if it's working.

This will tell you what a certain object is:
https://github.com/BlueBrain/HighFive/blob/master/include/highfive/bits/H5Node_traits.hpp#L179

[josiahslack]

Thanks! A combination of getGroup() and listObjectNames() was just what I needed.