caching const bake * relapse type

was reading adult bit c++, found essay rtti (runtime form identification):
. well, that's another theme :) - however, i stumbled on uncanny observant type_info-class, namely ::name-method. says: "the type_info::name member duty advantage const char* null-terminated twine representing human-readable name type. memory separate cached should never directly deallocated."

how exercise something yourself!? i've struggling definitely bit accurate problem mostly before, i don't wish new char-array traveller delete, i've stranded std::string so far.

so, effect simplicity, let's contend i wish slight advantage "hello world!", let's

const bake *gethellostring() const;

personally, i somehow (pseudo):

const bake *gethellostring() const
{
  bake *returnval = new char[13];
  strcpy("helloworld!", returnval);

  relapse returnval
}

.. nonetheless meant traveller should delete[] relapse pointer :(

thx advance