From: Xue Fuqiao <xfq.free@gmail.com>
To: help-gnu-emacs@gnu.org
Subject: About `macroexpand'
Date: Sun, 30 Dec 2012 10:39:31 +0800 [thread overview]
Message-ID: <20121230103931.f8b844934dbcf3742fd34e21@gmail.com> (raw)
I wrote the following code:
(defmacro t-becomes-nil (variable)
(if (eq variable t)
(setq variable nil)))
(setq foo t)
(macroexpand '(t-becomes-nil foo))
The return value of `macroexpand' is nil. I don't know why. I think it should be:
(if (eq foo t)
(setq foo nil)))
Can anybody help?
--
Best regards.
next reply other threads:[~2012-12-30 2:39 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-30 2:39 Xue Fuqiao [this message]
2012-12-30 3:50 ` About `macroexpand' Filipp Gunbin
2012-12-30 5:35 ` Xue Fuqiao
2012-12-30 7:06 ` Filipp Gunbin
2012-12-30 7:40 ` Xue Fuqiao
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