(undo) generates error message

(undo) generates error message

[Thomas Persson]

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Hi

When I use (undo) inside a function it performs what it's expected to
but also generates the following error message in the minibuffer:

    File mode specification error: (error "No further undo information")

The following code however does not generate an error:

    (undo-start)
    (undo-more 1)

Why is this?
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Re: (undo) generates error message

[Kevin Rodgers]

Thomas Persson wrote:
 > When I use (undo) inside a function it performs what it's expected to
 > but also generates the following error message in the minibuffer:
 >
 >     File mode specification error: (error "No further undo information")
 >
 > The following code however does not generate an error:
 >
 >     (undo-start)
 >     (undo-more 1)
 >
 > Why is this?

That error is only signalled from normal-mode, which I wouldn't think
would ever be called via undo.  Try setting debug-on-error or
debug-on-signal to see what the function stack looks like.

-- 
Kevin Rodgers