Avoid "instantiation of variable 'reg_info' required..." warning.

[ginac.git] / ginac / lst.h

diff --git a/ginac/lst.h b/ginac/lst.h
index 85b5f893f6ddc9a50861954d5622e425945e90c3..5038fca6ebfe54fad3672edb2053d28147a0ed56 100644 (file)
--- a/ginac/lst.h
+++ b/ginac/lst.h
@@ -3,7 +3,7 @@
  *  Definition of GiNaC's lst. */
 
 /*
- *  GiNaC Copyright (C) 1999-2008 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2021 Johannes Gutenberg University Mainz, Germany
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -20,17 +20,20 @@
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
-#ifndef __GINAC_LST_H__
-#define __GINAC_LST_H__
-
-#include <list>
+#ifndef GINAC_LST_H
+#define GINAC_LST_H
 
 #include "container.h"
 
+#include <list>
+
 namespace GiNaC {
 
 typedef container<std::list> lst;
 
+/** Definition of container::reg_info for lst. */
+template<> registered_class_info lst::reg_info;
+
 /** Specialization of container::get_default_flags() for lst. */
 template<> inline unsigned lst::get_default_flags() { return status_flags::not_shareable; }
 
@@ -42,8 +45,9 @@ template<> inline char lst::get_close_delim() { return '}'; }
 
 // defined in lst.cpp
 template<> bool lst::info(unsigned inf) const;
+extern template bool container<std::list>::info(unsigned) const;
 GINAC_DECLARE_UNARCHIVER(lst);
 
 } // namespace GiNaC
 
-#endif // ndef __GINAC_LST_H__
+#endif // ndef GINAC_LST_H