From: Stephen Berman <stephen.berman@gmx.net>
To: 14565@debbugs.gnu.org
Subject: bug#14565: 24.3.50; Error with byte-compiled function using backward-char
Date: Thu, 06 Jun 2013 16:24:17 +0200 [thread overview]
Message-ID: <87txlbz59q.fsf@rosalinde.fritz.box> (raw)
When I evaluate and invoke each of the following functions, they both
work as expected:
(defun my-test-1 () (forward-char nil))
(defun my-test-2 () (backward-char nil))
But if I byte-compile them, only my-test-1 works; my-test-2 raises a
Lisp error: (wrong-type-argument number-or-marker-p nil)
Here are the byte codes:
(byte-code "\300\301\302\"\207" [defalias my-test-1 #[nil "\300u\207" [nil] 1]] 3)
(byte-code "\300\301\302\"\207" [defalias my-test-2 #[nil "\300[u\207" [nil] 1]] 3)
and here is the disassembled code:
byte code for my-test-1:
args: nil
0 constant nil
1 forward-char
2 return
byte code for my-test-2:
args: nil
0 constant nil
1 negate
2 forward-char
3 return
In GNU Emacs 24.3.50.1 (x86_64-suse-linux-gnu, GTK+ Version 3.4.4)
of 2013-06-05 on rosalinde
Bzr revision: 112853 sdl.web@gmail.com-20130605074002-8mmjd1r5fvnb664v
Windowing system distributor `The X.Org Foundation', version 11.0.11203000
System Description: openSUSE 12.2 (x86_64)
Configured using:
`configure --without-toolkit-scroll-bars CFLAGS=-g3 -O0'
Important settings:
value of $LANG: en_US.UTF-8
value of $XMODIFIERS: @im=local
locale-coding-system: utf-8-unix
default enable-multibyte-characters: t
next reply other threads:[~2013-06-06 14:24 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-06 14:24 Stephen Berman [this message]
2013-06-06 18:30 ` bug#14565: 24.3.50; Error with byte-compiled function using backward-char Stephen Berman
2013-06-06 21:05 ` Glenn Morris
2013-06-07 2:28 ` Glenn Morris
2013-06-07 9:40 ` Stephen Berman
2013-06-08 13:20 ` Stephen Berman
2013-06-08 13:46 ` Stephen Berman
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