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It works perfectly well with C by default - with no addons. I will agree, you do need a tags file (though it's is not even remotely hand-made (emacs uses these

It works perfectly well with C by default - with no addons. I will agree, you do need a tags file (though it's is not even remotely hand-made (emacs uses these too)), but the rest is handled automatically, including code completion based on the contents of the tags file. Code completion, syntax highlighting, goto definition, goto tags... these are all core functions of VIM. Addons just help it work with languages other than C.

aidenn0 4y ago
Don't forget :make and the tooling around the error-pane for navigating to locations emitted as compiler warnings and errors.
hvis 4y ago
When the completion is not context-sensitive, it's not really what "code completion" is taken to mean these days (the last decade, at least).