* Interface to GiNaC's non-commutative 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
ncmul(const exvector & v, bool discardable=false);
ncmul(exvector * vp); // vp will be deleted
- // 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;}
ex expand(unsigned options=0) const;
ex coeff(const ex & s, int n=1) const;
ex eval(int level=0) const;
+ ex evalm(void) const;
exvector get_free_indices(void) const;
ex thisexprseq(const exvector & v) const;
ex thisexprseq(exvector * vp) const;
ex simplified_ncmul(const exvector & v);
// utility functions
-inline const ncmul &ex_to_ncmul(const ex &e)
+
+/** Specialization of is_exactly_a<ncmul>(obj) for ncmul objects. */
+template<> inline bool is_exactly_a<ncmul>(const basic & obj)
{
- return static_cast <const ncmul &>(*e.bp);
+ return obj.tinfo()==TINFO_ncmul;
}
} // namespace GiNaC