TIME macro

diff --git a/src/misc.lisp b/src/misc.lisp
index b1958b3..b3b24c1 100644 (file)
--- a/src/misc.lisp
+++ b/src/misc.lisp
@@ -17,3 +17,12 @@
 
 (defun lisp-implementation-type ()
   "JSCL")
+
+(defmacro time (form)
+  (let ((start (gensym))
+        (end (gensym)))
+    `(let ((,start (get-internal-real-time))
+           (,end))
+       (prog1 (progn ,form)
+         (setq ,end (get-internal-real-time))
+         (format t "Execution took ~a seconds.~%" (/ (- ,end ,start) 1000.0))))))

diff --git a/src/toplevel.lisp b/src/toplevel.lisp
index 0bd763f..d148a47 100644 (file)
--- a/src/toplevel.lisp
+++ b/src/toplevel.lisp
@@ -75,7 +75,7 @@
           second set setf setq seventh sixth some string string-upcase string=
           stringp sublis subseq subst symbol-function symbol-name symbol-package
           symbol-plist symbol-value symbolp t tagbody tailp tenth third throw
-          tree-equal truncate unless unwind-protect values values-list variable
+          time tree-equal truncate unless unwind-protect values values-list variable
           vector-push-extend warn when write-line write-string zerop))
 
 (setq *package* *user-package*)