typedef supername inherited; \
friend class function_options; \
friend class registered_class_options; \
-private: \
- static GiNaC::print_context_class_info reg_info; \
public: \
- virtual const GiNaC::print_context_class_info &get_class_info() const { return reg_info; } \
- virtual const char *class_name() const { return reg_info.options.get_name(); } \
+ static const GiNaC::print_context_class_info &get_class_info_static(); \
+ 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(); \
- classname * duplicate() const { return new classname(*this); } \
+ virtual classname * duplicate() const { return new classname(*this); } \
private:
/** Macro for inclusion in the implementation of each print_context class. */
#define GINAC_IMPLEMENT_PRINT_CONTEXT(classname, supername) \
- GiNaC::print_context_class_info classname::reg_info = GiNaC::print_context_class_info(print_context_options(#classname, #supername, next_print_context_id++));
+const GiNaC::print_context_class_info &classname::get_class_info_static() \
+{ \
+ static GiNaC::print_context_class_info reg_info = GiNaC::print_context_class_info(GiNaC::print_context_options(#classname, #supername, GiNaC::next_print_context_id++)); \
+ return reg_info; \
+}
+
extern unsigned next_print_context_id;