array.c in numo-narray-0.9.0.4

- old
+ new

@@ -1,14 +1,9 @@
 /*
   array.c
   Numerical Array Extension for Ruby
     (C) Copyright 1999-2016 by Masahiro TANAKA
-
-  This program is free software.
-  You can distribute/modify this program
-  under the same terms as Ruby itself.
-  NO WARRANTY.
 */
 #include <ruby.h>
 #include "numo/narray.h"
 //#include "narray_local.h"
 
@@ -118,10 +113,10 @@
 {
     if (IsNArray(v)) {
 	if (NIL_P(mdai->na_type)) {
 	    mdai->na_type = CLASS_OF(v);
 	} else {
-            mdai->na_type = na_upcast(CLASS_OF(v), CLASS_OF(mdai->na_type));
+            mdai->na_type = na_upcast(CLASS_OF(v), mdai->na_type);
 	}
     } else if (rb_obj_is_kind_of(v, rb_cRange)) {
         MDAI_ATTR_TYPE(mdai->type,v,"begin");
         MDAI_ATTR_TYPE(mdai->type,v,"end");
     } else if (rb_obj_is_kind_of(v, na_cStep)) {