delete関数でリストの最初の要素を削除できない about jsk_roseus HOT 1 CLOSED

[5]> (delete 4 l)
(6 6)
[6]> l
(4 6 6)

remove item seq &key :start :end :test :test-not :key :count [function]

creates a new sequence which has eliminated count (defaulted to infinity) occurrences of of item(s) between the startth element and the endth element in seq. If you are sure that there is only one occurrence of item, count=1 should be specified to avoid meaningless scan over the whole sequence.


delete item seq &key :start :end :test :test-not :key :count [function]

is same with remove except that delete modifies seq destructively and does not create a new sequence. If you are sure that there is only one occurrence of item, count=1 should be specified to avoid meaningless scan over the whole sequence.