- Derivatives are now assembled in a slightly different manner (i.e. they

[ginac.git] / ginac / ncmul.h

diff --git a/ginac/ncmul.h b/ginac/ncmul.h
index b79b0ea6ce16644fbfacd2793f3d88bf25b723f4..7476e290392762e46c57ccc7567de56b281a87d1 100644 (file)
--- a/ginac/ncmul.h
+++ b/ginac/ncmul.h
@@ -66,21 +66,21 @@ public:
     // functions overriding virtual functions from bases classes
 public:
     basic * duplicate() const;
-    void print(ostream & os, unsigned upper_precedence) const;
-    void printraw(ostream & os) const;
-    void printcsrc(ostream & os, unsigned upper_precedence) const;
+    void print(std::ostream & os, unsigned upper_precedence) const;
+    void printraw(std::ostream & os) const;
+    void printcsrc(std::ostream & os, unsigned upper_precedence) const;
     bool info(unsigned inf) const;
     int degree(const symbol & s) const;
     int ldegree(const symbol & s) const;
     ex expand(unsigned options=0) const;
     ex coeff(const symbol & s, int n=1) const;
     ex eval(int level=0) const;
-    ex diff(const symbol & s) const;
     ex subs(const lst & ls, const lst & lr) const;
     exvector get_indices(void) const;
     ex thisexprseq(const exvector & v) const;
     ex thisexprseq(exvector * vp) const;
 protected:
+    ex derivative(const symbol & s) const;
     int compare_same_type(const basic & other) const;
     unsigned return_type(void) const;
     unsigned return_type_tinfo(void) const;