[Bug c++/70529] Unhelpful diagnostic for hex float literals, inconsistent parsing

[g...@axel-naumann.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70529

--- Comment #12 from Axel Naumann <g...@axel-naumann.de> ---
Thanks for explaining, Jakub - I missed the identifier-nondigit.

Then it's really a matter of making the diagnostic more informative.