Suppress compiler warnings about inconsistent override.

[ginac.git] / ginac / print.h

diff --git a/ginac/print.h b/ginac/print.h
index 34456cd724b1b22bdd198b512dec8fcabd45aee3..8f5656753f481981f0a7cc26e3b4a10f9a571289 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
@@ -59,24 +59,33 @@ public:
 };
 
 
-/** Macro for inclusion in the declaration of a print_context class.
- *  It declares some functions that are common to all classes derived
- *  from 'print_context' as well as all required stuff for the GiNaC
- *  registry. */
-#define GINAC_DECLARE_PRINT_CONTEXT(classname, supername) \
+/** Common part of GINAC_DECLARE_PRINT_CONTEXT_BASE and GINAC_DECLARE_PRINT_CONTEXT_DERIVED. */
+#define GINAC_DECLARE_PRINT_CONTEXT_COMMON(classname)  \
 public: \
-       typedef supername inherited; \
        friend class function_options; \
        friend class registered_class_options; \
-public: \
        static const GiNaC::print_context_class_info &get_class_info_static(); \
+       classname();
+
+#define GINAC_DECLARE_PRINT_CONTEXT_BASE(classname) \
+       GINAC_DECLARE_PRINT_CONTEXT_COMMON(classname) \
        virtual const GiNaC::print_context_class_info &get_class_info() const { return classname::get_class_info_static(); } \
        virtual const char *class_name() const { return classname::get_class_info_static().options.get_name(); } \
-       \
-       classname(); \
        virtual classname * duplicate() const { return new classname(*this); } \
 private:
 
+/** Macro for inclusion in the declaration of a print_context class.
+ *  It declares some functions that are common to all classes derived
+ *  from 'print_context' as well as all required stuff for the GiNaC
+ *  registry. */
+#define GINAC_DECLARE_PRINT_CONTEXT(classname, supername) \
+       GINAC_DECLARE_PRINT_CONTEXT_COMMON(classname) \
+       typedef supername inherited; \
+       const GiNaC::print_context_class_info &get_class_info() const override { return classname::get_class_info_static(); } \
+       const char *class_name() const override { return classname::get_class_info_static().options.get_name(); } \
+       classname * duplicate() const override { return new classname(*this); } \
+private:
+
 /** Macro for inclusion in the implementation of each print_context class. */
 #define GINAC_IMPLEMENT_PRINT_CONTEXT(classname, supername) \
 const GiNaC::print_context_class_info &classname::get_class_info_static() \
@@ -92,7 +101,7 @@ extern unsigned next_print_context_id;
 /** Base class for print_contexts. */
 class print_context
 {
-       GINAC_DECLARE_PRINT_CONTEXT(print_context, void)
+       GINAC_DECLARE_PRINT_CONTEXT_BASE(print_context)
 public:
        print_context(std::ostream &, unsigned options = 0);
        virtual ~print_context() {}
@@ -199,9 +208,9 @@ 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 +227,9 @@ 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);