* Definition of helper classes for expression output. */
/*
- * GiNaC Copyright (C) 1999-2011 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
};
-/** 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() \
/** 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() {}
/** 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;
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);
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);
* implements the actual function call. */
class print_functor {
public:
- print_functor() : impl(0) {}
+ print_functor() : impl(nullptr) {}
print_functor(const print_functor & other) : impl(other.impl.get() ? other.impl->duplicate() : 0) {}
- print_functor(std::auto_ptr<print_functor_impl> impl_) : impl(impl_) {}
+ print_functor(std::unique_ptr<print_functor_impl> impl_) : impl(std::move(impl_)) {}
template <class T, class C>
print_functor(void f(const T &, const C &, unsigned)) : impl(new print_ptrfun_handler<T, C>(f)) {}
{
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;
}
bool is_valid() const { return impl.get(); }
private:
- std::auto_ptr<print_functor_impl> impl;
+ std::unique_ptr<print_functor_impl> impl;
};