Re: Jumping to C source from *Help*

[Richard Stallman]

    Doc string for set-window-dedicated-p says this:

            If it is dedicated, Emacs will not automatically change
            which buffer appears in it.

    What does "automatically change" mean?  

It is supposed to mean that display-buffer won't choose the dedicated
window.  Originally, switch-to-buffer was permitted in dedicated
windows, so you could change buffers in them "manually", but Emacs
would not change it "automatically".

However, later on, Fswitch_to_buffer was changed to get an error in
dedicated windows.  I am not sure whether that is the right behavior,
but I would guess it was intended to avoid bad results in some real
situations.