git clone https://github.com/octol/vim-cpp-enhanced-highlight.git /tmp/vim-cpp-enhanced-highlight
mkdir -p ~/.vim/after/syntax/
mv /tmp/vim-cpp-enhanced-highlight/after/syntax/cpp.vim ~/.vim/after/syntax/cpp.vim
rm -rf /tmp/vim-cpp-enhanced-highlight

vi ~/.vimrc and type:
syntax on

filetype plugin indent on
" show existing tab with 4 spaces width
set tabstop=4
" when indenting with '>', use 4 spaces width
set shiftwidth=4
" On pressing tab, insert 4 spaces
set expandtab

set paste