1.0.18.2: more conservative interval artihmetic

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

diff --git a/src/code/error.lisp b/src/code/error.lisp
index 3a02c24..9078873 100644 (file)
--- a/src/code/error.lisp
+++ b/src/code/error.lisp
@@ -124,17 +124,78 @@
                stream ':external-format (stream-external-format stream)
                octets)))))
 
+(define-condition c-string-encoding-error (character-encoding-error)
+  ((external-format :initarg :external-format :reader c-string-encoding-error-external-format))
+  (:report
+   (lambda (c s)
+     (format s "~@<c-string encoding error (:external-format ~S): ~2I~_~
+                  the character with code ~D cannot be encoded.~@:>"
+               (c-string-encoding-error-external-format c)
+               (character-encoding-error-code c)))))
+
+(define-condition c-string-decoding-error (character-decoding-error)
+  ((external-format :initarg :external-format :reader c-string-decoding-error-external-format))
+  (:report
+   (lambda (c s)
+     (format s "~@<c-string decoding error (:external-format ~S): ~2I~_~
+                  the octet sequence ~S cannot be decoded.~@:>"
+             (c-string-decoding-error-external-format c)
+             (character-decoding-error-octets c)))))
+
 (define-condition control-stack-exhausted (storage-condition)
   ()
   (:report
     (lambda (condition stream)
       (declare (ignore condition))
       (format stream
-             "Control stack exhausted (no more space for function call frames).  This is probably due to heavily nested or infinitely recursive function calls, or a tail call that SBCL cannot or has not optimized away."))))
+              ;; no pretty-printing, because that would use a lot of stack.
+              "Control stack exhausted (no more space for function call frames).
+This is probably due to heavily nested or infinitely recursive function
+calls, or a tail call that SBCL cannot or has not optimized away.
 
-(define-condition memory-fault-error (error)
+PROCEED WITH CAUTION."))))
+
+(define-condition heap-exhausted-error (storage-condition)
   ()
   (:report
    (lambda (condition stream)
      (declare (ignore condition))
-     (format stream "memory fault"))))
\ No newline at end of file
+     (declare (special *heap-exhausted-error-available-bytes*
+                       *heap-exhausted-error-requested-bytes*))
+     ;; See comments in interr.lisp -- there is a method to this madness.
+     (if (and (boundp '*heap-exhausted-error-available-bytes*)
+              (boundp '*heap-exhausted-error-requested-bytes*))
+         (format stream
+                 ;; no pretty-printing, because that will use a lot of heap.
+                 "Heap exhausted (no more space for allocation).
+There are still ~D bytes available; the request was for ~D bytes.
+
+PROCEED WITH CAUTION."
+                 *heap-exhausted-error-available-bytes*
+                 *heap-exhausted-error-requested-bytes*)
+         (format stream
+                 "A ~S condition without bindings for heap statistics.  (If
+you did not expect to see this message, please report it."
+                 'heap-exhausted-error)))))
+
+(define-condition system-condition (condition)
+  ((address :initarg :address :reader system-condition-address :initform nil)
+   (context :initarg :context :reader system-condition-context :initform nil)))
+
+(define-condition memory-fault-error (system-condition error) ()
+  (:report
+   (lambda (condition stream)
+     (format stream "Unhandled memory fault at #x~X."
+             (system-condition-address condition)))))
+
+(define-condition breakpoint-error (system-condition error) ()
+  (:report
+   (lambda (condition stream)
+     (format stream "Unhandled breakpoint/trap at #x~X."
+             (system-condition-address condition)))))
+
+(define-condition interactive-interrupt (system-condition serious-condition) ()
+  (:report
+   (lambda (condition stream)
+     (format stream "Interactive interrupt at #x~X."
+             (system-condition-address condition)))))