Fix compilation of programs using __attribute__((deprecated)).

[ginac.git] / ginac / print.h

diff --git a/ginac/print.h b/ginac/print.h
index 47050dde90a75ddb4a687c552eb4bbf7ff0d67eb..675219b664580de6aa8d03fb1050ccdd1220dc30 100644 (file)
--- a/ginac/print.h
+++ b/ginac/print.h
@@ -3,7 +3,7 @@
  *  Definition of helper classes for expression output. */
 
 /*
- *  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
@@ -179,7 +179,7 @@ public:
 /** Check if obj is a T, including base classes. */
 template <class T>
 inline bool is_a(const print_context & obj)
-{ return dynamic_cast<const T *>(&obj) != 0; }
+{ return dynamic_cast<const T *>(&obj) != nullptr; }
 
 
 class basic;
@@ -199,9 +199,9 @@ public:
        typedef void (*F)(const T &, const C &, unsigned);
 
        print_ptrfun_handler(F f_) : f(f_) {}
-       print_ptrfun_handler *duplicate() const { return new print_ptrfun_handler(*this); }
+       print_ptrfun_handler *duplicate() const override { return new print_ptrfun_handler(*this); }
 
-       void operator()(const basic & obj, const print_context & c, unsigned level) const
+       void operator()(const basic & obj, const print_context & c, unsigned level) const override
        {
                // Call the supplied function
                f(dynamic_cast<const T &>(obj), dynamic_cast<const C &>(c), level);
@@ -218,9 +218,9 @@ public:
        typedef void (T::*F)(const C & c, unsigned level) const;
 
        print_memfun_handler(F f_) : f(f_) {}
-       print_memfun_handler *duplicate() const { return new print_memfun_handler(*this); }
+       print_memfun_handler *duplicate() const override { return new print_memfun_handler(*this); }
 
-       void operator()(const basic & obj, const print_context & c, unsigned level) const
+       void operator()(const basic & obj, const print_context & c, unsigned level) const override
        {
                // Call the supplied member function
                return (dynamic_cast<const T &>(obj).*f)(dynamic_cast<const C &>(c), level);
@@ -252,7 +252,7 @@ public:
        {
                if (this != &other) {
                        print_functor_impl *p = other.impl.get();
-                       impl.reset(p ? other.impl->duplicate() : 0);
+                       impl.reset(p ? other.impl->duplicate() : nullptr);
                }
                return *this;
        }