From: Markus Sauermann <mhoram@gmx.de>
To: Chong Yidong <cyd@stupidchicken.com>
Cc: 7145@debbugs.gnu.org, Andreas Schwab <schwab@linux-m68k.org>
Subject: bug#7145: elisp-code behaves differently after byte-compilation
Date: Tue, 05 Oct 2010 19:37:03 +0200 [thread overview]
Message-ID: <4CAB623F.5000707@gmx.de> (raw)
In-Reply-To: <87k4lz271m.fsf@stupidchicken.com>
Hi,
Am 03.10.2010 07:12, schrieb Chong Yidong:
>
> I think we're just going to have to ask people not to do that...
>
it looks like an undocumented feature ;-)
Here is a suggestion for a patch for the documentation (trunk of emacs
Bazaar repository)
--- BEGIN ---
=== modified file 'doc/lispref/objects.texi'
--- doc/lispref/objects.texi 2010-08-19 23:23:13 +0000
+++ doc/lispref/objects.texi 2010-10-05 18:00:58 +0000
@@ -1999,6 +1999,17 @@
@result{} nil
@end group
@end example
+
+Be aware that byte-compiling a comparison of strings with @code{eq}
+might give unexpected results.
+
+@example
+@group
+(funcall (byte-compile (lambda () (let ((foo "bar"))
+ (eq foo "bar")))))
+ @result{} t
+@end group
+@end example
@end defun
@defun equal object1 object2
--- END ---
Regards
Markus
prev parent reply other threads:[~2010-10-05 17:37 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-02 1:53 bug#7145: elisp-code behaves differently after byte-compilation Markus Sauermann
2010-10-02 8:54 ` Andreas Schwab
2010-10-02 10:41 ` Johan Bockgård
2010-10-03 5:12 ` Chong Yidong
2010-10-05 17:37 ` Markus Sauermann [this message]
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