Q:

Why does clang_complete in VIM give incomplete completion?

I am new to VIM and clang_complete. I managed to install clang_complete and it seems to work, but the completions are somehow not what I expect.
For example, I looked at a tutorial and expect a behaviour like in this animated gif:
https://blogueun.files.wordpress.com/2013/12/be5ee-using_clang.gif
This is what I do: 

vim test.cpp 
In VIM I hit i to get to insert mode
I press <C-x><C-u> to open the autocomplete list
I press <C-n> twice to select the second entry
I hit enter to confirm the selection

Now I have the following line in VIM: 
using
But I think it should be something like:
using namespace $\'identifier' (the ' has to be replaced by `, please edit the question)
How can I get the full completion and not only the first word?

A:

I found out myself. From the FAQ of clang_complete in https://raw.githubusercontent.com/Rip-Rip/clang_complete/master/doc/clang_complete.txt:

*) Only function names get completed but not the parentheses/parameters.
Enable the snippets-support by adding the following lines to your
.vimrc, for example:
let g:clang_snippets = 1
let g:clang_snippets_engine = 'clang_complete'

This worked for me.

