GNU bug report logs - #21820
25.0.50; doc string of `set-mouse-position' should mention return value

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Drew Adams <drew.adams <at> oracle.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 25.0.50; doc string of `set-mouse-position' should mention return
 value
Date: Tue, 3 Nov 2015 08:54:12 -0800 (PST)

Subject line says it all.  Please mention that the value
you set is what the function returns.

In GNU Emacs 25.0.50.1 (i686-pc-mingw32)
 of 2015-10-30
Repository revision: cadfceab1aaafaf2a1fd4f7a27fe488e9a06c3ae
Windowing system distributor 'Microsoft Corp.', version 6.1.7601
Configured using:
 'configure --prefix=/c/Devel/emacs/snapshot/trunk
 --enable-checking=yes,glyphs --enable-check-lisp-object-type
 --without-compress-install --with-wide-int 'CFLAGS=-O0 -ggdb3'
 LDFLAGS=-Lc:/Devel/emacs/lib 'CPPFLAGS=-DGC_MCHECK=1
 -Ic:/Devel/emacs/include''

Configured features:
XPM JPEG TIFF GIF PNG RSVG SOUND NOTIFY ACL GNUTLS LIBXML2 ZLIB
TOOLKIT_SCROLL_BARS

Important settings:
  value of $LANG: ENU
  locale-coding-system: cp1252

Major mode: Dired by name

Minor modes in effect:
  tooltip-mode: t
  global-eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  buffer-read-only: t
  line-number-mode: t
  transient-mark-mode: t

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Memory information:
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Message #8 received at 21820 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Drew Adams <drew.adams <at> oracle.com>
Cc: 21820 <at> debbugs.gnu.org
Subject: Re: bug#21820: 25.0.50;
 doc string of `set-mouse-position' should mention return value
Date: Tue, 03 Nov 2015 19:21:51 +0200

> Date: Tue, 3 Nov 2015 08:54:12 -0800 (PST)
> From: Drew Adams <drew.adams <at> oracle.com>
> 
> Subject line says it all.  Please mention that the value
> you set is what the function returns.

Maybe I'm blind, but here it always returns nil, both in the code and
in practice.

Message #11 received at 21820 <at> debbugs.gnu.org (full text, mbox):

From: Drew Adams <drew.adams <at> oracle.com>
To: Eli Zaretskii <eliz <at> gnu.org>, Drew Adams <drew.adams <at> oracle.com>
Cc: 21820 <at> debbugs.gnu.org
Subject: RE: bug#21820: 25.0.50;	doc string of `set-mouse-position' should
 mention return value
Date: Tue, 3 Nov 2015 10:10:32 -0800 (PST)

> > Subject line says it all.  Please mention that the value
> > you set is what the function returns.
> 
> Maybe I'm blind, but here it always returns nil, both in the code and
> in practice.

My bad.  I should have tested.

Was misled by this:
http://stackoverflow.com/q/33501149/729907
which uses this sexp:
(list (set-mouse-position (selected-frame) 4 4) (mouse-position))

Presumably, `progn' was meant instead of `list'.

I'll close this bug.

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