Eclipse CDT Autocomplete not working

Question

I remember from some time ago that Eclipse had auto-complete when you type, and now I can only get it when pressing Ctrl + Space. I already checked and

Answer 1

I had a problem with Eclipse Juno (OSX Java "1.6.0_33") where the autocomplete (and save key binding) wasn't working properly. Googling I found this: Eclipse JUNO doesn't start

Updating my Mercurial Plugin to the latest (1.9.1) fixed both these issues for me.

Very weird.

Answer 2

This question is so valid even in 2018 with eclipse photon.

1) Go to Window > Prefrences > C/C++ > Editor > Content Assist > Advanced.

2) Check "Parsing-based proposal(Task-focused)".

3) Bind a key now by pressing "Ctrl + Space".

Answer 3

At some point recently (not sure but since March 2013?) my Eclipse CDT stopped auto completion. I figured out that at Editor->Content Assist->Advanced checking Parsing-based Proposals lets auto completion work on my machine.

Ubuntu 12.10, Eclipse 4.2.2, CDT 8.1.2

This snapshot shows Task-Focused, which I don't see on my another Eclipse instance. In that case I just checked Parsing-based Proposals and completion still works.