* Interface to GiNaC's ABC. */
/*
- * GiNaC Copyright (C) 1999-2009 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2015 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
namespace GiNaC {
class ex;
-class ex_is_less;
+struct ex_is_less;
class symbol;
class numeric;
class relational;
template <class T>
inline bool is_a(const basic &obj)
{
- return dynamic_cast<const T *>(&obj) != 0;
+ return dynamic_cast<const T *>(&obj) != nullptr;
}
/** Check if obj is a T, not including base classes. */