Variadic functions for * and /

[jscl.git] / src / boot.lisp

diff --git a/src/boot.lisp b/src/boot.lisp
index e25d70f..7605a29 100644 (file)
--- a/src/boot.lisp
+++ b/src/boot.lisp
@@ -95,23 +95,12 @@
 (defun fboundp (x)
   (fboundp x))
 
-;; Basic functions
-(defun = (x y) (= x y))
-(defun * (x y) (* x y))
-(defun / (x y) (/ x y))
-(defun 1+ (x) (+ x 1))
-(defun 1- (x) (- x 1))
-(defun zerop (x) (= x 0))
-
-(defun truncate (x &optional (y 1))
-  (floor (/ x y)))
-
+(defun eq (x y) (eq x y))
 (defun eql (x y) (eq x y))
 
 (defun not (x) (if x nil t))
 
 ;; Basic macros
-
 (defmacro incf (place &optional (delta 1))
   (multiple-value-bind (dummies vals newval setter getter)
       (get-setf-expansion place)
@@ -142,6 +131,21 @@
               ,@(cdr newval))
          ,setter))))
 
+(defmacro pushnew (x place &rest keys &key key test test-not)
+  (declare (ignore key test test-not))
+  (multiple-value-bind (dummies vals newval setter getter)
+      (get-setf-expansion place)
+    (let ((g (gensym))
+          (v (gensym)))
+      `(let* ((,g ,x)
+              ,@(mapcar #'list dummies vals)
+              ,@(cdr newval)
+              (,v ,getter))
+         (if (member ,g ,v ,@keys)
+             ,v
+             (let ((,(car newval) (cons ,g ,getter)))
+               ,setter))))))
+
 (defmacro dolist ((var list &optional result) &body body)
   (let ((g!list (gensym)))
     (unless (symbolp var) (error "`~S' is not a symbol." var))
@@ -248,18 +252,6 @@
 ;;; Go on growing the Lisp language in Ecmalisp, with more high level
 ;;; utilities as well as correct versions of other constructions.
 
-(defun + (&rest args)
-  (let ((r 0))
-    (dolist (x args r)
-      (incf r x))))
-
-(defun - (x &rest others)
-  (if (null others)
-      (- x)
-      (let ((r x))
-        (dolist (y others r)
-          (decf r y)))))
-
 (defun append-two (list1 list2)
   (if (null list1)
       list2
@@ -382,15 +374,6 @@
 (defun char< (x y)
   (< (char-code x) (char-code y)))
 
-(defun integerp (x)
-  (and (numberp x) (= (floor x) x)))
-
-(defun floatp (x)
-  (and (numberp x) (not (integerp x))))
-
-(defun plusp (x) (< 0 x))
-(defun minusp (x) (< x 0))
-
 (defun atom (x)
   (not (consp x)))