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;-*- Mode: Lisp -*-
;;;; Author: Paul Dietz
;;;; Created: Sun Oct 27 08:36:36 2002
;;;; Contains: Tests of FOR-ON-AS-LIST iteration control in LOOP
(in-package :cl-test)
(deftest loop.3.1
(loop for x on '(1 2 3) sum (car x))
6)
(deftest loop.3.2
(loop for x on '(1 2 3 4)
do (when (evenp (car x)) (return x)))
(2 3 4))
(deftest loop.3.3
(loop for x on '(a b c . d) collect (car x))
(a b c))
(deftest loop.3.4
(let ((x nil))
(loop for e on '(a b c d) do (push (car e) x))
x)
(d c b a))
(deftest loop.3.5
(loop for e on '(a b c d e f) by #'cddr
collect (car e))
(a c e))
(deftest loop.3.6
(loop for e on '(a b c d e f g) by #'cddr
collect (car e))
(a c e g))
(deftest loop.3.7
(loop for e on '(a b c d e f)
by #'(lambda (l) (and (cdr l) (cons (car l) (cddr l))))
collect (car e))
(a a a a a a))
(deftest loop.3.8
(loop for ((x . y)) on '((a . b) (c . d) (e . f))
collect (list x y))
((a b) (c d) (e f)))
(deftest loop.3.9
(loop for ((x nil y)) on '((a b c) (d e f) (g h i))
collect (list x y))
((a c) (d f) (g i)))
(deftest loop.3.10
(loop for ((x y)) of-type (fixnum) on '((1 2) (3 4) (5 6))
collect (+ x y))
(3 7 11))
(deftest loop.3.11
(loop for ((x y)) of-type (fixnum) on '((1 2) (3 4) (5 6))
collect (+ x y))
(3 7 11))
(deftest loop.3.12
(loop for ((x y)) of-type ((fixnum fixnum)) on '((1 2) (3 4) (5 6))
collect (+ x y))
(3 7 11))
(deftest loop.3.13
(loop for ((x . y)) of-type ((fixnum . fixnum)) on '((1 . 2) (3 . 4) (5 . 6))
collect (+ x y))
(3 7 11))
(deftest loop.3.14
(classify-error
(loop for x on '(a b c)
for x on '(d e f) collect x))
program-error)
(deftest loop.3.15
(classify-error
(loop for (x . x) on '((a b) (c d)) collect x))
program-error)
(deftest loop.3.16
(loop for nil on nil do (return t))
nil)
(deftest loop.3.17
(let ((x '(a b c)))
(values
x
(loop for x on '(d e f) collect x)
x))
(a b c)
((d e f) (e f) (f))
(a b c))
(deftest loop.3.18
(loop for (x) of-type ((integer 0 10)) on '(2 4 6 7) sum x)
19)
;;; Tests of the 'AS' form
(deftest loop.3.19
(loop as x on '(1 2 3) sum (car x))
6)
(deftest loop.3.20
(loop as x on '(a b c)
as y on '(1 2 3)
collect (list (car x) (car y)))
((a 1) (b 2) (c 3)))
(deftest loop.3.21
(loop as x on '(a b c)
for y on '(1 2 3)
collect (list (car x) (car y)))
((a 1) (b 2) (c 3)))
(deftest loop.3.22
(loop for x on '(a b c)
as y on '(1 2 3)
collect (list (car x) (car y)))
((a 1) (b 2) (c 3)))
(deftest loop.3.23
(let (a b (i 0))
(values
(loop for e on (progn (setf a (incf i))
'(a b c d e f g))
by (progn (setf b (incf i)) #'cddr)
collect (car e))
a b i))
(a c e g)
1 2 2)
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