how to have autocomplete c++ in atom editor

How can I have autocomplete in atom for c++ like codeblock when code, for example when include header for example when I type "i" it return to "iostream, iomanip....." when I type " sq" it have "sqrt", when type "back" it have back_inserter. In short, how to have to code complete like code block, I used autocomplete-clang package but maybe I need config something but mine useless, it not have autocomplete like I said, thanks all.