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The header <boost/core/typeinfo.hpp>
defines a class boost::core::typeinfo, which is an alias for std::type_info
when RTTI is enabled, and is a reasonable substitute when RTTI is not supported.
The macro BOOST_CORE_TYPEID,
when applied to a type T,
is the equivalent of typeid(T)
and produces a reference to a const typeinfo
object.
The function boost::core::demangled_name takes a boost::core::typeinfo const & ti and either returns ti.name(),
when that string doesn't need to be demangled, or boost::core::demangle(ti.name()),
when it does. The return type of boost::core::demangled_name
is char const* in the first case and std::string
in the second.
namespace boost { namespace core { class typeinfo; /* char const* or std::string */ demangled_name( typeinfo const & ti ); } } #define BOOST_CORE_TYPEID(T) /*unspecified*/
#include <boost/core/typeinfo.hpp> #include <iostream> template<class T1, class T2> struct X { }; int main() { typedef X<void const*, void(*)(float)> T; boost::core::typeinfo const & ti = BOOST_CORE_TYPEID(T); std::cout << boost::core::demangled_name( ti ) << std::endl; }