Vim auto-generate ctags

Question

Right now I have the following in my .vimrc:

au BufWritePost *.c,*.cpp,*.h !ctags -R

There are a few problems with this:

Answer 1

Perhaps use the append argument to ctags as demonstrated by:

http://vim.wikia.com/wiki/Autocmd_to_update_ctags_file

I can't really vouch for this as I generally use source insight for code browsing, but use vim as an editor... go figure.