Re: quitting ediff with pop-up-frames non-nil gives wrong-type arg error

[Drew Adams]

    > This doesn't happen on Linux.
    > It is most likely a problem with the Windows port of Emacs.
    > Can somebody who is maintaining Emacs on Windows check this?
    
    I just did, with today's CVS on MS-Windows, and didn't see any
    problem.
    
    There's one source of uncertainty here: Drew didn't post a complete
    recipe to reproduce the problem.  Specifically, after invoking
    "emacs -q" there are 2 buffers, but Drew didn't tell which ones' names
    he typed when Ediff prompted twice for the two buffers.  I used two
    combinations: the same buffer *scratch* to both prompts, and *scratch*
    against *Messages*; neither combination signalled an error.
    
I just retested, with the build noted below, and I still see it.

emacs -Q --no-site-file ; redundant, but just to make Lennart happy ;-)

M-x set-variable pop-up-frames t

Get these two buffers (for example) in two separate frames: *scratch*,
*Messages*.

Put cursor in *scratch* (for example).

M-x ediff-buffers - choose *scratch* and *Messages*, in that order
(for example).

Immediately quit with `q', then `y'.

Message is "ediff-cleanup-mess: Wrong type argument:
number-or-marker-p, nil"

Here is my *Messages* buffer:

(C:\Emacs-22-2006-07-19-Fran\bin\emacs.exe -Q --no-site-file)
Loading encoded-kb...done
For information about the GNU Project and its goals, type C-h C-p.
Loading help-fns...done
Loading easymenu...done
Loading ediff...done
Computing differences between ediff3508kAj and ediff3508xaH ...
Buffer A: Processing difference region 0 of 1
Buffer B: Processing difference region 0 of 1
Processing difference regions ... done
Quit this Ediff session? (y or n) 
ediff-cleanup-mess: Wrong type argument: number-or-marker-p, nil
Loading emacsbug...
Loading regexp-opt...done
Loading emacsbug...done
Auto-saving...done

HTH


In GNU Emacs 22.0.50.1 (i386-msvc-nt5.1.2600)
 of 2006-07-19 on BOS-CTHEWLAP2
X server distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-msvc (12.00)'

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: ENU
  locale-coding-system: cp1252
  default-enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  encoded-kbd-mode: t
  tooltip-mode: t
  tool-bar-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  auto-compression-mode: t
  line-number-mode: t

Recent input:
M-x s e t - v a r i a b l e <return> p o p - u p - 
f r a m e s SPC <return> t <return> C-x 4 b * M e s 
<tab> <return> <switch-frame> <help-echo> <help-echo> 
M-x e d i f f - b u f f e r s <return> <return> * M 
e s <tab> <return> q y <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <menu-bar> <help-menu> 
<report-emacs-bug>

Recent messages:
Loading ediff...done
Computing differences between ediff3508kAj and ediff3508xaH ...
Buffer A: Processing difference region 0 of 1
Buffer B: Processing difference region 0 of 1
Processing difference regions ... done
Quit this Ediff session? (y or n) 
ediff-cleanup-mess: Wrong type argument: number-or-marker-p, nil
Loading emacsbug...
Loading regexp-opt...done
Loading emacsbug...done