From: Andreas Schwab <schwab@linux-m68k.org>
To: "Markus Sauermann" <mhoram@gmx.de>
Cc: 7145@debbugs.gnu.org
Subject: bug#7145: elisp-code behaves differently after byte-compilation
Date: Sat, 02 Oct 2010 10:54:47 +0200 [thread overview]
Message-ID: <m239spotyg.fsf@whitebox.home> (raw)
In-Reply-To: <20101002015349.23590@gmx.net> (Markus Sauermann's message of "Sat, 02 Oct 2010 03:53:49 +0200")
"Markus Sauermann" <mhoram@gmx.de> writes:
> The following code however shows a case where this is not the case.
>
> --- BEGIN CODE ---
> (let ((fun (lambda () (let ((bar "foo")
> (baz "foo"))
> (eq bar baz)))))
> (list (funcall (byte-compile fun))
> (funcall fun)))
> --- END CODE---
>
> Evaluation this code (don't try to byte-compile it, because it is buggy ;-) ) results in:
>
> --- BEGIN OUTPUT ---
> (t nil)
> --- END OUTPUT ---
This is not a bug. You cannot depend on the uniqueness of literal
strings. If you want to compare strings you should use equal.
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
next prev parent reply other threads:[~2010-10-02 8:54 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 [this message]
2010-10-02 10:41 ` Johan Bockgård
2010-10-03 5:12 ` Chong Yidong
2010-10-05 17:37 ` Markus Sauermann
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