* Interface to GiNaC's products of expressions. */
/*
- * GiNaC Copyright (C) 1999-2001 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2003 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
mul(epvector * vp, const ex & oc);
mul(const ex & lh, const ex & mh, const ex & rh);
- // functions overriding virtual functions from bases classes
+ // functions overriding virtual functions from base classes
public:
void print(const print_context & c, unsigned level = 0) const;
unsigned precedence(void) const {return 50;}
};
// utility functions
-inline const mul &ex_to_mul(const ex &e)
+
+/** Specialization of is_exactly_a<mul>(obj) for mul objects. */
+template<> inline bool is_exactly_a<mul>(const basic & obj)
{
- return static_cast<const mul &>(*e.bp);
+ return obj.tinfo()==TINFO_mul;
}
} // namespace GiNaC