C++ library is not something that is supposed to be very useful, it's something that is supposed to be available. I, for one, never used that library in my 15

C++ library is not something that is supposed to be very useful, it's something that is supposed to be available. I, for one, never used that library in my 15 years of professional programming. Even though the library is covered by the same standard as the language it's not a part of the language and, in practice, is not even available all the time.