How to determine at runtime the type of exception pointed to by an exception_ptr?

Question

In C++11 and later, an exception_ptr to the the current exception can be retrieved using current_exception(). Is it possible at runtime to determine the type of the exception being pointed to?

More precisely, how to get the a reference to a type_info of the exception pointed to by an exception_ptr? I know it is possible to catch based on the type, but then the programmer would need to write catch blocks for all possible the types of exceptions, which is not a solution for this problem.

try {
    userProvidedRuntimePlugin.executeAction(); // May throw anything
} catch (...) {
    auto e = std::current_exception();
    std::type_info & info = /* ??? */;
    std::cerr << "Exception of type " << info.name() << " thrown." << std::endl;
}

Answer 1

Try something like the following:

#include <cxxabi.h>

using namespace __cxxabiv1;

std::string util_demangle(std::string to_demangle)
{
    int status = 0;
    char * buff = __cxxabiv1::__cxa_demangle(to_demangle.c_str(), NULL, NULL, &status);
    if (!buff) return to_demangle;
    std::string demangled = buff;
    std::free(buff);
    return demangled;
}

try
{
   /* .... */
}
catch(...)
{
   std::cout <<"exception type: '" << util_demangle(abi::__cxa_current_exception_type()->name()) << "'\n";
}