Use C++11 'nullptr' where applicable.

[ginac.git] / ginac / relational.cpp

diff --git a/ginac/relational.cpp b/ginac/relational.cpp
index 38d0baf7c757230e1b586c09e716f9343202b185..72d19f5d08e8431b4de6707323b3382d6a8d7b3b 100644 (file)
--- a/ginac/relational.cpp
+++ b/ginac/relational.cpp
@@ -3,7 +3,7 @@
  *  Implementation of relations between expressions */
 
 /*
- *  GiNaC Copyright (C) 1999-2015 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2016 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
@@ -290,17 +290,7 @@ unsigned relational::calchash() const
 // new virtual functions which can be overridden by derived classes
 //////////
 
-/** Left hand side of relational. */
-ex relational::lhs() const
-{
-       return lh;
-}
-
-/** Right hand side of relational. */
-ex relational::rhs() const
-{
-       return rh;    
-}
+// none
 
 //////////
 // non-virtual functions in this class
@@ -308,7 +298,7 @@ ex relational::rhs() const
 
 relational::safe_bool relational::make_safe_bool(bool cond) const
 {
-       return cond? &safe_bool_helper::nonnull : 0;
+       return cond? &safe_bool_helper::nonnull : nullptr;
 }
 
 /** Cast the relational into a Boolean, mainly for evaluation within an