bug#15713: 24.3.50; wrong-type-argument char-table-p when visiting C++ file

[Eli Zaretskii]

> Date: Fri, 25 Oct 2013 11:15:02 +0200
> From: Claudio Bley <claudio.bley@googlemail.com>
> 
> 
> 1. run "emacs -Q".
> 2. C-x C-f test.cpp RET
> 
> Debugger entered--Lisp error: (wrong-type-argument char-table-p nil)
>   char-table-parent(nil)
>   c++-mode()
>   set-auto-mode-0(c++-mode nil)
>   set-auto-mode()
>   normal-mode(t)
>   after-find-file(nil t)
>   find-file-noselect-1(#<buffer test.cpp> "x:/src/test.cpp" nil nil 
> "x:/src/test.cpp" ((1536 7 . 46561) (16106 . 22486)))
>   find-file-noselect("x:/src/test.cpp" nil nil t)
>   find-file("x:/src/test.cpp" t)
>   call-interactively(find-file nil nil)
>   command-execute(find-file)

What is "test.cpp"?  Or are you saying this happens with any C++
source file, even an empty one?  If the latter, I cannot reproduce
that with the current trunk.