--- stack/stack.c	2002/03/17 02:15:01	1.114
+++ stack/stack.c	2002/03/17 11:26:35	1.115
@@ -165,7 +165,7 @@
 extern void gc_init(environment *env)
 {
   stackitem *new_head= NULL, *titem;
-  cons *iterator;
+  pair *iterator;
   symbol *tsymb;
   int i;
 
@@ -285,7 +285,7 @@
 {
   value *new_value= new_val(env);
 
-  new_value->content.c= malloc(sizeof(cons));
+  new_value->content.c= malloc(sizeof(pair));
   assert(new_value->content.c!=NULL);
   new_value->type= tcons;
   CAR(new_value)= val;
@@ -1049,7 +1049,7 @@
   }
 
   if(myenv.interactive) {
-    printf("Stack version $Revision: 1.114 $\n\
+    printf("Stack version $Revision: 1.115 $\n\
 Copyright (C) 2002  Mats Alritzson and Teddy Hogeborn\n\
 Stack comes with ABSOLUTELY NO WARRANTY; for details type 'warranty;'.\n\
 This is free software, and you are welcome to redistribute it\n\
@@ -1332,7 +1332,7 @@
     break;
   case tcons:
 
-    new_value->content.c= malloc(sizeof(cons));
+    new_value->content.c= malloc(sizeof(pair));
     assert(new_value->content.c!=NULL);
 
     CAR(new_value)= copy_val(env, CAR(old_value)); /* recurse */
@@ -2353,3 +2353,29 @@
 
   CAR(env->head)=CDR(CAR(env->head));
 }
+
+extern void cons(environment *env)
+{
+  value *val;
+
+  if(env->head->type==empty || CDR(env->head)->type==empty) {
+    printerr("Too Few Arguments");
+    env->err= 1;
+    return;
+  }
+
+  val=new_val(env);
+  val->content.c= malloc(sizeof(pair));
+  assert(val->content.c!=NULL);
+  val->type=tcons;
+
+  CAR(val)= CAR(CDR(env->head));
+  CDR(val)= CAR(env->head);
+
+  push_val(env, val);
+
+  swap(env); if(env->err) return;
+  toss(env); if(env->err) return;
+  swap(env); if(env->err) return;
+  toss(env); if(env->err) return;
+}