0.9.8.11:

[sbcl.git] / tests / alien.impure.lisp

diff --git a/tests/alien.impure.lisp b/tests/alien.impure.lisp
index 7192ba3..6c6b002 100644 (file)
--- a/tests/alien.impure.lisp
+++ b/tests/alien.impure.lisp
@@ -115,6 +115,17 @@
                                      (deref integer-array 1)))
     (assert (eql (deref enum-array 2) 'k-two))))
 
+;; enums used to allow values to be used only once
+;; C enums allow for multiple tags to point to the same value
+(define-alien-type enum.4
+    (enum nil (:key1 1) (:key2 2) (:keytwo 2)))
+(with-alien ((enum-array (array enum.4 3)))
+  (setf (deref enum-array 0) :key1)
+  (setf (deref enum-array 1) :key2)
+  (setf (deref enum-array 2) :keytwo)
+  (assert (and (eql (deref enum-array 1) (deref enum-array 2))
+               (eql (deref enum-array 1) :key2))))
+
 ;;; As reported by Baughn on #lisp, ALIEN-FUNCALL loops forever when
 ;;; compiled with (DEBUG 3).
 (sb-kernel::values-specifier-type-cache-clear)
@@ -125,4 +136,31 @@
                          v)))))
   (assert (typep (funcall f "HOME") '(or string null))))
 
+
+;;; CLH: Test for non-standard alignment in alien structs
+;;;
+(sb-alien:define-alien-type align-test-struct
+    (sb-alien:union align-test-union
+                    (s (sb-alien:struct nil
+                                        (s1 sb-alien:unsigned-char)
+                                        (c1 sb-alien:unsigned-char :alignment 16)
+                                        (c2 sb-alien:unsigned-char :alignment 32)
+                                        (c3 sb-alien:unsigned-char :alignment 32)
+                                        (c4 sb-alien:unsigned-char :alignment 8)))
+                    (u (sb-alien:array sb-alien:unsigned-char 16))))
+
+(let ((a1 (sb-alien:make-alien align-test-struct)))
+  (declare (type (sb-alien:alien (* align-test-struct)) a1))
+  (setf (sb-alien:slot (sb-alien:slot a1 's) 's1) 1)
+  (setf (sb-alien:slot (sb-alien:slot a1 's) 'c1) 21)
+  (setf (sb-alien:slot (sb-alien:slot a1 's) 'c2) 41)
+  (setf (sb-alien:slot (sb-alien:slot a1 's) 'c3) 61)
+  (setf (sb-alien:slot (sb-alien:slot a1 's) 'c4) 81)
+  (assert (equal '(1 21 41 61 81)
+                 (list (sb-alien:deref (sb-alien:slot a1 'u) 0)
+                       (sb-alien:deref (sb-alien:slot a1 'u) 2)
+                       (sb-alien:deref (sb-alien:slot a1 'u) 4)
+                       (sb-alien:deref (sb-alien:slot a1 'u) 8)
+                       (sb-alien:deref (sb-alien:slot a1 'u) 9)))))
+
 ;;; success