0.8.0.78.vector-nil-string.14:

[sbcl.git] / src / code / condition.lisp

diff --git a/src/code/condition.lisp b/src/code/condition.lisp
index d76500f..0b2b49b 100644 (file)
--- a/src/code/condition.lisp
+++ b/src/code/condition.lisp
@@ -526,7 +526,7 @@
 ;;; methods)
 (defun describe-condition (condition stream)
   (format stream
-         "~@<~S ~_is a ~S. ~_Its slot values are ~_~S.~:>"
+         "~&~@<~S ~_is a ~S. ~_Its slot values are ~_~S.~:>~%"
          condition
          (type-of condition)
          (concatenate 'list
@@ -790,7 +790,17 @@
 
 (define-condition sb!ext::timeout (serious-condition) ())
 
-
+(define-condition defconstant-uneql (error)
+  ((name :initarg :name :reader defconstant-uneql-name)
+   (old-value :initarg :old-value :reader defconstant-uneql-old-value)
+   (new-value :initarg :new-value :reader defconstant-uneql-new-value))
+  (:report
+   (lambda (condition stream)
+     (format stream
+            "~@<The constant ~S is being redefined (from ~S to ~S)~@:>"
+            (defconstant-uneql-name condition)
+            (defconstant-uneql-old-value condition)
+            (defconstant-uneql-new-value condition)))))
 \f
 ;;;; special SBCL extension conditions