+;;; Stig E Sandoe reported in cclan-Bugs-431263 that SBCL couldn't
+;;; compile this. sbcl-0.6.12.26 died in CIRCULAR-LIST-P with "The
+;;; value \"EST\" is not of type LIST." Dan Barlow fixed it.
+(defvar +time-zones+
+ '((5 "EDT" . "EST") (6 "CDT" . "CST") (7 "MDT" .
+"MST") (8 "PDT" . "PST")
+ (0 "GMT" . "GDT") (-2 "MET" . "MET DST"))
+ "*The string representations of the time zones.")
+
+;;; The old CMU CL Python compiler assumed that it was safe to infer
+;;; function types (including return types) from function definitions
+;;; and then use them to optimize code later. This is of course bad
+;;; when functions are redefined. The problem was fixed in
+;;; sbcl-0.6.12.57.
+(defun foo (x)
+ (if (plusp x)
+ 1.0
+ 0))
+(defun bar (x)
+ (typecase (foo x)
+ (fixnum :fixnum)
+ (real :real)
+ (string :string)
+ (t :t)))
+(assert (eql (bar 11) :real))
+(assert (eql (bar -11) :fixnum))
+(setf (symbol-function 'foo) #'identity)
+(assert (eql (bar 11) :fixnum))
+(assert (eql (bar -11.0) :real))
+(assert (eql (bar "this is a test") :string))
+(assert (eql (bar (make-hash-table)) :t))
+
+;;; bug reported by Brian Spilsbury sbcl-devel 2001-09-30, fixed by
+;;; Alexey Dejneka patch sbcl-devel 2001-10-02
+(defun pixarray-element-size (pixarray)
+ (let ((eltype (array-element-type pixarray)))
+ (cond ((eq eltype 'bit) 1)
+ ((and (listp eltype)
+ (eq (first eltype) 'unsigned-byte))
+ (second eltype))
+ (t
+ (error "Invalid pixarray: ~S." pixarray)))))
+(assert (eql 1 (pixarray-element-size #*110)))
+
+;;; bug 31 turned out to be a manifestation of non-ANSI array type
+;;; handling, fixed by CSR in sbcl-0.7.3.8.
+(defun array-element-type-handling (x)
+ (declare (type (vector cons) x))
+ (when (consp (aref x 0))
+ (aref x 0)))
+(assert (eq (array-element-type-handling
+ (make-array 3 :element-type t :initial-element 0))
+ nil))
+