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From: | Stefan Monnier |
Subject: | bug#34852: 26.1; seq-intersection ignores nil as element |
Date: | Thu, 14 Mar 2019 09:34:07 -0400 |
User-agent: | Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) |
Yet another approach might be to make an exception in seq-contains if the returned element is nil (and return something else in that case). E.g. diff --git a/lisp/emacs-lisp/seq.el b/lisp/emacs-lisp/seq.el index 4a811d7895..d2398eb588 100644 --- a/lisp/emacs-lisp/seq.el +++ b/lisp/emacs-lisp/seq.el @@ -360,7 +360,7 @@ seq-sort-by Equality is defined by TESTFN if non-nil or by `equal' if nil." (seq-some (lambda (e) (when (funcall (or testfn #'equal) elt e) - e)) + (or e t))) sequence)) (cl-defgeneric seq-set-equal-p (sequence1 sequence2 &optional testfn) -- Stefan
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