- Cleanups: My evil plot of making ex::bp private may finally be carried

[ginac.git] / ginac / numeric.h

diff --git a/ginac/numeric.h b/ginac/numeric.h
index b759d1aff42ac75a31c429719d591fddb02db699..6599ffbc681245004f009aa31ccb35b7f17bb80f 100644 (file)
--- a/ginac/numeric.h
+++ b/ginac/numeric.h
@@ -72,15 +72,15 @@ class numeric : public basic
        
        // other ctors
 public:
-       explicit numeric(int i);
-       explicit numeric(unsigned int i);
-       explicit numeric(long i);
-       explicit numeric(unsigned long i);
-       explicit numeric(long numer, long denom);
-       explicit numeric(double d);
-       explicit numeric(const char *);
+       numeric(int i);
+       numeric(unsigned int i);
+       numeric(long i);
+       numeric(unsigned long i);
+       numeric(long numer, long denom);
+       numeric(double d);
+       numeric(const char *);
        
-       // 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 30;}
@@ -285,9 +285,11 @@ ex CatalanEvalf(void);
 
 
 // utility functions
-inline const numeric &ex_to_numeric(const ex &e)
+
+/** Specialization of is_exactly_a<numeric>(obj) for numeric objects. */
+template<> inline bool is_exactly_a<numeric>(const basic & obj)
 {
-       return static_cast<const numeric &>(*e.bp);
+       return obj.tinfo()==TINFO_numeric;
 }
 
 } // namespace GiNaC