+
+;;; bug 46c
+(dolist (fun '(and if))
+ (assert (raises-error? (coerce fun 'function) type-error)))
+
+(dotimes (i 100)
+ (let ((x (make-array 0 :element-type `(unsigned-byte ,(1+ i)))))
+ (eval `(typep ,x (class-of ,x)))))
+
+(assert (not (typep #c(1 2) '(member #c(2 1)))))
+(assert (typep #c(1 2) '(member #c(1 2))))
+(assert (subtypep 'nil '(complex nil)))
+(assert (subtypep '(complex nil) 'nil))
+(assert (subtypep 'nil '(complex (eql 0))))
+(assert (subtypep '(complex (eql 0)) 'nil))
+(assert (subtypep 'nil '(complex (integer 0 0))))
+(assert (subtypep '(complex (integer 0 0)) 'nil))
+(assert (subtypep 'nil '(complex (rational 0 0))))
+(assert (subtypep '(complex (rational 0 0)) 'nil))
+(assert (subtypep 'complex '(complex real)))
+(assert (subtypep '(complex real) 'complex))
+(assert (subtypep '(complex (eql 1)) '(complex (member 1 2))))
+(assert (subtypep '(complex ratio) '(complex rational)))
+(assert (subtypep '(complex ratio) 'complex))
+(assert (equal (multiple-value-list
+ (subtypep '(complex (integer 1 2))
+ '(member #c(1 1) #c(1 2) #c(2 1) #c(2 2))))
+ '(nil t)))
+
+(assert (typep 0 '(real #.(ash -1 10000) #.(ash 1 10000))))
+(assert (subtypep '(real #.(ash -1 1000) #.(ash 1 1000))
+ '(real #.(ash -1 10000) #.(ash 1 10000))))
+(assert (subtypep '(real (#.(ash -1 1000)) (#.(ash 1 1000)))
+ '(real #.(ash -1 1000) #.(ash 1 1000))))
+
+;;; Bug, found by Paul F. Dietz
+(let* ((x (eval #c(-1 1/2)))
+ (type (type-of x)))
+ (assert (subtypep type '(complex rational)))
+ (assert (typep x type)))
+
+;;; Test derivation of LOG{AND,IOR,XOR} bounds for unsigned arguments.
+;;;
+;;; Fear the Loop of Doom!
+(let* ((bits 5)
+ (size (ash 1 bits)))
+ (flet ((brute-force (a b c d op minimize)
+ (loop with extreme = (if minimize (ash 1 bits) 0)
+ with collector = (if minimize #'min #'max)
+ for i from a upto b do
+ (loop for j from c upto d do
+ (setf extreme (funcall collector
+ extreme
+ (funcall op i j))))
+ finally (return extreme))))
+ (dolist (op '(logand logior logxor))
+ (dolist (minimize '(t nil))
+ (let ((deriver (intern (format nil "~A-DERIVE-UNSIGNED-~:[HIGH~;LOW~]-BOUND"
+ op minimize)
+ (find-package :sb-c))))
+ (loop for a from 0 below size do
+ (loop for b from a below size do
+ (loop for c from 0 below size do
+ (loop for d from c below size do
+ (let* ((brute (brute-force a b c d op minimize))
+ (x-type (sb-c::specifier-type `(integer ,a ,b)))
+ (y-type (sb-c::specifier-type `(integer ,c ,d)))
+ (derived (funcall deriver x-type y-type)))
+ (unless (= brute derived)
+ (format t "FAIL: ~A [~D,~D] [~D,~D] ~A~%
+ACTUAL ~D DERIVED ~D~%"
+ op a b c d minimize brute derived)
+ (assert (= brute derived)))))))))))))
+
+;;; subtypep on CONS types wasn't taking account of the fact that a
+;;; CONS type could be the empty type (but no other non-CONS type) in
+;;; disguise.
+(multiple-value-bind (yes win)
+ (subtypep '(and function stream) 'nil)
+ (multiple-value-bind (cyes cwin)
+ (subtypep '(cons (and function stream) t)
+ '(cons nil t))
+ (assert (eq yes cyes))
+ (assert (eq win cwin))))
+
+;;; CONS type subtypep could be too enthusiastic about thinking it was
+;;; certain
+(multiple-value-bind (yes win)
+ (subtypep '(satisfies foo) '(satisfies bar))
+ (assert (null yes))
+ (assert (null win))
+ (multiple-value-bind (cyes cwin)
+ (subtypep '(cons (satisfies foo) t)
+ '(cons (satisfies bar) t))
+ (assert (null cyes))
+ (assert (null cwin))))
+
+(multiple-value-bind (yes win)
+ (subtypep 'generic-function 'function)
+ (assert yes)
+ (assert win))
+;;; this would be in some internal test suite like type.before-xc.lisp
+;;; except that generic functions don't exist at that stage.
+(multiple-value-bind (yes win)
+ (subtypep 'generic-function 'sb-kernel:funcallable-instance)
+ (assert yes)
+ (assert win))
+
+;;; all sorts of answers are right for this one, but it used to
+;;; trigger an AVER instead.
+(subtypep '(function ()) '(and (function ()) (satisfies identity)))