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[ginac.git] / ginac / ncmul.h

diff --git a/ginac/ncmul.h b/ginac/ncmul.h
index 92bdbe88c0de943a6c28e62657af750c53eb515c..db1538923f06cde801994c863c597bda97b71732 100644 (file)
--- a/ginac/ncmul.h
+++ b/ginac/ncmul.h
@@ -3,7 +3,7 @@
  *  Interface to GiNaC's non-commutative products of expressions. */
 
 /*
- *  GiNaC Copyright (C) 1999-2015 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2020 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
@@ -54,25 +54,25 @@ public:
 
        // functions overriding virtual functions from base classes
 public:
-       unsigned precedence() const {return 50;}
-       bool info(unsigned inf) const;
-       int degree(const ex & s) const;
-       int ldegree(const ex & s) const;
-       ex expand(unsigned options=0) const;
-       ex coeff(const ex & s, int n=1) const;
-       ex eval(int level=0) const;
-       ex evalm() const;
-       exvector get_free_indices() const;
-       ex thiscontainer(const exvector & v) const;
-       ex thiscontainer(exvector && v) const;
-       ex conjugate() const;
-       ex real_part() const;
-       ex imag_part() const;
+       unsigned precedence() const override {return 50;}
+       bool info(unsigned inf) const override;
+       int degree(const ex & s) const override;
+       int ldegree(const ex & s) const override;
+       ex expand(unsigned options=0) const override;
+       ex coeff(const ex & s, int n=1) const override;
+       ex eval() const override;
+       ex evalm() const override;
+       exvector get_free_indices() const override;
+       ex thiscontainer(const exvector & v) const override;
+       ex thiscontainer(exvector && v) const override;
+       ex conjugate() const override;
+       ex real_part() const override;
+       ex imag_part() const override;
 
 protected:
-       ex derivative(const symbol & s) const;
-       unsigned return_type() const;
-       return_type_t return_type_tinfo() const;
+       ex derivative(const symbol & s) const override;
+       unsigned return_type() const override;
+       return_type_t return_type_tinfo() const override;
        
        // new virtual functions which can be overridden by derived classes
        // none