- A new test ripped shamelessly from the Mathematica book.

[ginac.git] / ginac / numeric.h

diff --git a/ginac/numeric.h b/ginac/numeric.h
index 6c1f9f2d709f1c0fea6f1dc232b06d49df6aa529..0d2ab166174682fc537df08430ca726077af110e 100644 (file)
--- a/ginac/numeric.h
+++ b/ginac/numeric.h
@@ -117,8 +117,8 @@ public:
     explicit numeric(long numer, long denom);
     explicit numeric(double d);
     explicit numeric(const char *);
-    numeric(cl_N const & z);
-
+    numeric(const cl_N & z);
+    
     // functions overriding virtual functions from bases classes
 public:
     basic * duplicate() const;
@@ -127,20 +127,18 @@ public:
     void printtree(ostream & os, unsigned indent) const;
     void printcsrc(ostream & os, unsigned type, unsigned precedence=0) const;
     bool info(unsigned inf) const;
+    bool has(const ex & other) const;
     ex eval(int level=0) const;
     ex evalf(int level=0) const;
-    ex diff(const symbol & s) const;
     ex normal(lst &sym_lst, lst &repl_lst, int level=0) const;
     numeric integer_content(void) const;
     ex smod(const numeric &xi) const;
     numeric max_coefficient(void) const;
 protected:
+    ex derivative(const symbol & s) const;
     int compare_same_type(const basic & other) const;
     bool is_equal_same_type(const basic & other) const;
-    unsigned calchash(void) const {
-        hashvalue=HASHVALUE_NUMERIC;
-        return HASHVALUE_NUMERIC;
-    }
+    unsigned calchash(void) const;
 
     // new virtual functions which can be overridden by derived classes
     // (none)
@@ -209,9 +207,12 @@ extern const numeric I;
 extern const type_info & typeid_numeric;
 extern _numeric_digits Digits;
 
-#define is_a_numeric_hash(x) ((x)==HASHVALUE_NUMERIC)
+//#define is_a_numeric_hash(x) ((x)==HASHVALUE_NUMERIC)
 // may have to be changed to ((x)>=0x80000000U)
 
+// has been changed
+//#define is_a_numeric_hash(x) ((x)&0x80000000U)
+
 // global functions
 
 const numeric exp(const numeric & x);
@@ -323,8 +324,13 @@ ex PiEvalf(void);
 ex EulerGammaEvalf(void);
 ex CatalanEvalf(void);
 
+
 // utility functions
-const numeric &ex_to_numeric(const ex &e);
+inline const numeric &ex_to_numeric(const ex &e)
+{
+    return static_cast<const numeric &>(*e.bp);
+}
+
 
 #ifndef NO_NAMESPACE_GINAC
 } // namespace GiNaC