dump.c in ox-2.14.1

- old
+ new

@@ -836,10 +836,10 @@
 	    e.clas.str = rb_class2name(clas);
 	    e.clas.len = strlen(e.clas.str);
 	    out->w_start(out, &e);
 
 	    for (i = 0; i < cnt; i++) {
-	        VALUE v = RSTRUCT_GET(obj, i);
+	        VALUE v = RSTRUCT_GET(obj, (int)(i));
 	        dump_obj(rb_intern(ulong2str(i, num_buf + sizeof(num_buf) - 1)), v, d2, out);
 	    }
 	    out->w_end(out, &e);
 	}
 #else