Question

I have a multiply nested namespace:

namespace first {namespace second {namespace third {
              // emacs indents three times
    // I want to intend here
} } }

so emacs indents to the third position. However I just want a single indentation.
Is it possible to accomplish this effect simply?

Answer 1

Use an an absolute indentation column inside namespace:

(defconst my-cc-style
  '("gnu"
    (c-offsets-alist . ((innamespace . [4])))))

(c-add-style "my-cc-style" my-cc-style)

Then use c-set-style to use your own style.

Note that this only works in c++-mode, c-mode doesn’t know ‘innamespace’.