X-Git-Url: http://git.kpe.io/?p=kmrcl.git;a=blobdiff_plain;f=macros.lisp;h=c83b3b64a19f9f9be26f9dd96daa9ed9213f6f6d;hp=bf2714b86d441eec6f9d0c4bbce5a64f7f539d73;hb=5f3fba52fd7c9984a7f797c4720ec93799d6d786;hpb=93ac7eed8f69f19013472f078b544be145619ff5

diff --git a/macros.lisp b/macros.lisp
index bf2714b..c83b3b6 100644
--- a/macros.lisp
+++ b/macros.lisp
@@ -147,6 +147,15 @@
      ,@body))
 
 
+(defmacro time-seconds (&body body)
+  (let ((t1 (gensym)))
+    `(let ((,t1 (get-internal-real-time)))
+       (values
+	(progn ,@body)
+	(coerce (/ (- (get-internal-real-time) ,t1)
+		   internal-time-units-per-second)
+		'double-float)))))
+  
 (defmacro time-iterations (n &body body)
   (let ((i (gensym))
 	(count (gensym)))
@@ -254,3 +263,9 @@
 	      (pprint exp)))
      (format t "~%~%")
      (values)))
+
+(defmacro defconst (symbol value &optional doc)
+   `(defconstant ,symbol (if (boundp ',symbol)
+                             (symbol-value ',symbol)
+                             ,value)
+     ,@(when doc (list doc))))