ANSI Common Lisp 17 Sequences 17.2 Rules about Test Functions 17.2.1 Satisfying a Two-Argument Test
17.2.1.1 Examples of Satisfying a Two-Argument Test
(remove "FOO" '(foo bar "FOO" "BAR" "foo" "bar") :test #'equal)
(foo bar "BAR" "foo" "bar")
(remove "FOO" '(foo bar "FOO" "BAR" "foo" "bar") :test #'equalp)
(foo bar "BAR" "bar")
(remove "FOO" '(foo bar "FOO" "BAR" "foo" "bar") :test #'string-equal)
(bar "BAR" "bar")
(remove "FOO" '(foo bar "FOO" "BAR" "foo" "bar") :test #'string=)
(BAR "BAR" "foo" "bar")
(remove 1 '(1 1.0 #C(1.0 0.0) 2 2.0 #C(2.0 0.0)) :test-not #'eql)
(1)
(remove 1 '(1 1.0 #C(1.0 0.0) 2 2.0 #C(2.0 0.0)) :test-not #'=)
(1 1.0 #C(1.0 0.0))
(remove 1 '(1 1.0 #C(1.0 0.0) 2 2.0 #C(2.0 0.0)) :test (complement #'=))
(1 1.0 #C(1.0 0.0))
(count 1 '((one 1) (uno 1) (two 2) (dos 2)) :key #'cadr) 2
(count 2.0 '(1 2 3) :test #'eql :key #'float) 1
(count "FOO" (list (make-pathname :name "FOO" :type "X")
(make-pathname :name "FOO" :type "Y"))
:key #'pathname-name
:test #'equal)
2
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