Re:What’s New in Emacs 24.4
by sklogic on Wednesday October 15, 2014 @06:54AM
(#8457858)
You may want to take a look at irony-mode. Do not expect any rich semantic features from the stock c-mode.
[ Parent
| on HN ]
It's not rich semantic features that are missing, but basic stuff such as C++11 keywords, handling of >>, etc. Those seem to be available in a cc-mode branch, but since cc-mode is maintained separately from Emacs, it takes more effort than it should to have an updated version of cc-mode in Emacs.
Nowadays using package.el is mandatory.