Re: emacs-27 eebfb72 1/2: Document constant vs mutable objects better

[Michael Heerdegen]

Paul Eggert <address@hidden> writes:

> No, there are exceptions. For example the following makes my Emacs
> dump core, even though all it does is modify a string.
>
>   (aset (symbol-name 'cons) 0 ?x)
>
> It's trying to change the spelling of the name of the 'cons' function,
> but that spelling is in memory that the operating system protects on
> my platform.

What you didn't say (directly) is that this means your Emacs will crash
if you eval this.  It would have been...good.

Michael.