diff --git a/ChangeLog b/ChangeLog
index 55feaee634..05012a179d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+Tue Feb 18 21:39:27 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* eval.c (rb_call0): should not report uninitialized warning by
+	  attribute reader method.
+
+	* variable.c (rb_attr_get): new function to get instance variable
+	  without uninitialized warning.
+
+	* io.c (argf_to_io): should prefetch argv.
+
 Tue Feb 18 00:13:50 2003  Nobuyoshi Nakada  <nobu.nokada@softhome.net>
 
 	* misc/ruby-mode.el (ruby-comment-column): customize comment
diff --git a/eval.c b/eval.c
index ff1eeb59bf..cf56536d3c 100644
--- a/eval.c
+++ b/eval.c
@@ -4629,6 +4629,9 @@ rb_call0(klass, recv, id, oid, argc, argv, body, nosuper)
 	if (argc != 0) {
 	    rb_raise(rb_eArgError, "wrong number of arguments(%d for 0)", argc);
 	}
+	result = rb_attr_get(recv, body->nd_vid);
+	break;
+
       case NODE_ATTRSET:
 	/* for re-scoped/renamed method */
       case NODE_ZSUPER:
diff --git a/intern.h b/intern.h
index f630c84162..4b1071373a 100644
--- a/intern.h
+++ b/intern.h
@@ -119,7 +119,6 @@ void rb_undef _((VALUE, ID));
 void rb_define_protected_method _((VALUE, const char*, VALUE (*)(ANYARGS), int));
 void rb_define_private_method _((VALUE, const char*, VALUE (*)(ANYARGS), int));
 void rb_define_singleton_method _((VALUE, const char*, VALUE(*)(ANYARGS), int));
-void rb_define_private_method _((VALUE, const char*, VALUE(*)(ANYARGS), int));
 VALUE rb_singleton_class _((VALUE));
 /* compar.c */
 int rb_cmpint _((VALUE));
@@ -437,6 +436,7 @@ VALUE rb_ivar_set _((VALUE, ID, VALUE));
 VALUE rb_ivar_defined _((VALUE, ID));
 VALUE rb_iv_set _((VALUE, const char*, VALUE));
 VALUE rb_iv_get _((VALUE, const char*));
+VALUE rb_attr_get _((VALUE, ID));
 VALUE rb_obj_instance_variables _((VALUE));
 VALUE rb_obj_remove_instance_variable _((VALUE, VALUE));
 void *rb_mod_const_at _((VALUE, void*));
diff --git a/io.c b/io.c
index d4baa9f774..2f47e5f818 100644
--- a/io.c
+++ b/io.c
@@ -3698,6 +3698,7 @@ argf_fileno()
 static VALUE
 argf_to_io()
 {
+    next_argv();
     return current_file;
 }
 
diff --git a/variable.c b/variable.c
index 4a7bcd4ee5..9ac004e7f5 100644
--- a/variable.c
+++ b/variable.c
@@ -965,10 +965,11 @@ rb_copy_generic_ivar(clone, obj)
     }
 }
 
-VALUE
-rb_ivar_get(obj, id)
+static VALUE
+ivar_get(obj, id, warn)
     VALUE obj;
     ID id;
+    int warn;
 {
     VALUE val;
 
@@ -984,11 +985,29 @@ rb_ivar_get(obj, id)
 	    return generic_ivar_get(obj, id);
 	break;
     }
-    rb_warning("instance variable %s not initialized", rb_id2name(id));
+    if (warn && ruby_verbose) {
+	rb_warning("instance variable %s not initialized", rb_id2name(id));
+    }
 
     return Qnil;
 }
 
+VALUE
+rb_ivar_get(obj, id)
+    VALUE obj;
+    ID id;
+{
+    return ivar_get(obj, id, Qtrue);
+}
+
+VALUE
+rb_attr_get(obj, id)
+    VALUE obj;
+    ID id;
+{
+    return ivar_get(obj, id, Qfalse);
+}
+
 VALUE
 rb_ivar_set(obj, id, val)
     VALUE obj;