(truncate (expt a b))))
(assert (equal (multiple-value-list (expt-derive-type-bug 1 1))
'(1 0)))
+
+;;; Problems with type checking in functions with EXPLICIT-CHECK
+;;; attribute (reported by Peter Graves)
+(loop for (fun . args) in '((= a) (/= a)
+ (< a) (<= a) (> a) (>= a))
+ do (assert (raises-error? (apply fun args) type-error)))
+
+(defclass broken-input-stream (sb-gray:fundamental-input-stream) ())
+(defmethod sb-gray:stream-read-char ((stream broken-input-stream))
+ (throw 'break :broken))
+(assert (eql (block return
+ (handler-case
+ (catch 'break
+ (funcall (eval ''peek-char)
+ 1 (make-instance 'broken-input-stream))
+ :test-broken)
+ (type-error (c)
+ (return-from return :good))))
+ :good))
+
\f
;;;; tests not in the problem domain, but of the consistency of the
;;;; compiler machinery itself