Is it possible to fold/unfold only one function

Question

I'm trying to fold my c++ code.

Google told me that I should set foldmethod=indent. But this is not what I need.

set foldmethod=indent makes all of folds happen automatically when I enter a c++ file. And zc and zo will fold/unfold all of functions. But what I need is that:

1. Don't fold automatically when I enter a c++ file;
2. I only want to fold the function in which the cursor is.

Is it possible to do so?

Answer 1

If you are ok with set foldmethod=indent and don't need to use other methods (syntax, expr or manual) then add to your vimrc:

set foldlevelstart=99

With this option all your folds would be open for a file you edit(open).

'foldlevelstart' 'fdls' number (default: -1)
            global
            {not available when compiled without the |+folding|
            feature}
    Sets 'foldlevel' when starting to edit another buffer in a window.
    Useful to always start editing with all folds closed (value zero),
    some folds closed (one) or no folds closed (99).

For the second thing I am not sure what exactly you need, I would use zc and zo or za to close/open/toggle current fold.

PS, you might also like set foldmethod=syntax for c/cpp files:

augroup cpp | au!
    au FileType c,cpp setl fdm=syntax
augroup END