- do something about the mad cast disease.

[ginac.git] / ginac / power.h

diff --git a/ginac/power.h b/ginac/power.h
index 2c7486162c8fe11d6129ce7784305efa0dd6fbfd..049d55d520c2b56aebdd6dc2425f6e95b9025fae 100644 (file)
--- a/ginac/power.h
+++ b/ginac/power.h
@@ -48,20 +48,20 @@ public:
        
        // functions overriding virtual functions from bases classes
 public:
-       void print(std::ostream & os, unsigned upper_precedence = 0) const;
-       void printraw(std::ostream & os) const;
-       void printtree(std::ostream & os, unsigned indent) const;
-       void printcsrc(std::ostream & os, unsigned type, unsigned upper_precedence = 0) const;
+       void print(const print_context & c, unsigned level = 0) const;
+       unsigned precedence(void) const {return 60;}
        bool info(unsigned inf) const;
        unsigned nops() const;
        ex & let_op(int i);
-       int degree(const symbol & s) const;
-       int ldegree(const symbol & s) const;
-       ex coeff(const symbol & s, int n = 1) const;
+       ex map(map_function & f) const;
+       int degree(const ex & s) const;
+       int ldegree(const ex & s) const;
+       ex coeff(const ex & s, int n = 1) const;
        ex eval(int level=0) const;
        ex evalf(int level=0) const;
+       ex evalm(void) const;
        ex series(const relational & s, int order, unsigned options = 0) const;
-       ex subs(const lst & ls, const lst & lr) const;
+       ex subs(const lst & ls, const lst & lr, bool no_pattern = false) const;
        ex normal(lst &sym_lst, lst &repl_lst, int level = 0) const;
        ex to_rational(lst &repl_lst) const;
        exvector get_free_indices(void) const;
@@ -89,15 +89,23 @@ protected:
 protected:
        ex basis;
        ex exponent;
-       static unsigned precedence;
 };
 
 // utility functions
+
+/** Return the power object handled by an ex.  Deprecated: use ex_to<power>().
+ *  This is unsafe: you need to check the type first. */
 inline const power &ex_to_power(const ex &e)
 {
        return static_cast<const power &>(*e.bp);
 }
 
+/** 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.