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bug#5971: 23.1.95; `delete' modifies default value instead of buffer-loc


From: Andreas Schwab
Subject: bug#5971: 23.1.95; `delete' modifies default value instead of buffer-local value
Date: Mon, 19 Apr 2010 18:31:53 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1.95 (gnu/linux)

"Drew Adams" <address@hidden> writes:

> Nothing in the doc states that they share list structure.

There is no buffer-local value before you set it.

The doc is pretty clear that a buffer-local value only starts to exist
the first time it is set:

Make VARIABLE become buffer-local whenever it is set.
At any time, the value for the current buffer is in effect,
unless the variable has never been set in this buffer,
in which case the default value is in effect.
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^

Andreas.

-- 
Andreas Schwab, address@hidden
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