- New tinfo mechanism

[ginac.git] / ginac / power.h

diff --git a/ginac/power.h b/ginac/power.h
index d93bf9812c6e89c9c9d8f896f709c64168baf6fa..0fe37d4c00d229362f3a09c0d027e14c823f61f5 100644 (file)
--- a/ginac/power.h
+++ b/ginac/power.h
@@ -3,7 +3,7 @@
  *  Interface to GiNaC's symbolic exponentiation (basis^exponent). */
 
 /*
- *  GiNaC Copyright (C) 1999-2005 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2006 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
@@ -44,8 +44,8 @@ class power : public basic
        
        // other constructors
 public:
-       power(const ex & lh, const ex & rh) : inherited(TINFO_power), basis(lh), exponent(rh) {}
-       template<typename T> power(const ex & lh, const T & rh) : inherited(TINFO_power), basis(lh), exponent(rh) {}
+       power(const ex & lh, const ex & rh) : inherited(&power::tinfo_static), basis(lh), exponent(rh) {}
+       template<typename T> power(const ex & lh, const T & rh) : inherited(&power::tinfo_static), basis(lh), exponent(rh) {}
        
        // functions overriding virtual functions from base classes
 public:
@@ -70,7 +70,7 @@ protected:
        ex derivative(const symbol & s) const;
        ex eval_ncmul(const exvector & v) const;
        unsigned return_type() const;
-       unsigned return_type_tinfo() const;
+       const basic* return_type_tinfo() const;
        ex expand(unsigned options = 0) const;
        
        // new virtual functions which can be overridden by derived classes
@@ -96,14 +96,6 @@ protected:
        ex exponent;
 };
 
-// utility functions
-
-/** Efficient specialization of is_exactly_a<power>(obj) for power objects. */
-template<> inline bool is_exactly_a<power>(const basic & obj)
-{
-       return obj.tinfo()==TINFO_power;
-}
-
 // wrapper functions
 
 /** Symbolic exponentiation.  Returns a power-object as a new expression.