Should finfo have smallest normal/subnormal attributes?

[rgommers]

Following up on gh-129: we removed the tiny attribute from finfo because it's badly named. In the discussion @kgryte explained its purpose and proposed instead to add two new attributes: smallest_normal and smallest_subnormal. That does sound like a good idea, however it'd be good to propose adding those attributes to numpy.finfo first, because it's not existing API and if NumPy doesn't want to extend finfo then we're better off leaving it out probably.

[rgommers]

We discussed this, and because finfo comes from NumPy, moved the discussion there. PR close to being merged: numpy/numpy#18536

[rgommers]

smallest_subnormal seems to be painful to get right, so not sure that should be included. But smallest_normal makes total sense I think.

[kgryte]

This has been resolved. Closing...