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Re: About assigning a function to Tie.direction, and "warning: type chec
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From: |
Urs Liska |
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Subject: |
Re: About assigning a function to Tie.direction, and "warning: type check for 'direction' failed" |
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Date: |
Tue, 20 Feb 2018 20:33:10 +0100 |
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K-9 Mail for Android |
Am 20. Februar 2018 20:20:19 MEZ schrieb Simon Albrecht <address@hidden>:
>On 20.02.2018 18:55, Stefano Troncaro wrote:
>> \tieDirectionFromList #'(-1 1 -1)
>> %The following gives warning: type check for `direction' failed;
>value
>> `DOWN' must be of type `direction' %\tieDirectionFromList #'(DOWN UP
>DOWN)
>
>That’s a problem with quoting: try
>\tieDirectionFromList #(list DOWN UP DOWN)
>or, if you were to mix literals and variables,
>\tieDirectionFromList #`(-1 ,UP ,DOWN)
>
>Best, Simon
Maybe this is if some help: https://scheme-book.ursliska.de/scheme/quoting/
Urs
>
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