+
+function checkArgs(args, n){
+ checkArgsAtLeast(args, n);
+ checkArgsAtMost(args, n);
+}
+
+// Improper list constructor (like LIST*)
+function QIList(){
+ if (arguments.length == 1)
+ return arguments[0];
+ else {
+ var i = arguments.length-1;
+ var r = arguments[i--];
+ for (; i>=0; i--){
+ r = {car: arguments[i], cdr: r};
+ }
+ return r;
+ }
+}