2012/5/30 Michel Morin <mimomorin@gmail.com>:
Antony Polukhin wrote:
Would be there some interest in function for getting class name without RTTI?
Boost.Exception has such a function boost::type_name in <boost/exception/detail/type_info.hpp>. ... #ifndef BOOST_NO_TYPEID template <typename T> struct demangle_impl { static std::string apply() { return boost::units::detail::demangle(typeid(T).name()); } }; ... template <typename T> inline std::string type_name() { #ifndef BOOST_NO_TYPEID return type_name_detail::demangle_impl<T>::apply(); #else return BOOST_CURRENT_FUNCTION; #endif }
When RTTI disabled, you are returning whole function name, not just the required type T. In your case you`ll get somethihg like ‘std::string boost::type_name() [with T = const int&, std::string = std::basic_string<char>]’ instead of 'const int&'. There is also a detail/sp_typeinfo.hpp header, which provides almost what I propose. But it is undocumented, creates additional static variables for each template instance, produces long names(like from example above), noncopyable. May be we shall document sp_typeinfo.hpp, move it to utility, and implement it via temple_info<T> class, which would be copyable? -- Best regards, Antony Polukhin