Fatal error: memory: No such file or directory

I need to use std::unique_ptr and std::make_unique in my project for Arduino Nano. If I just #include , I get the eponymous error message on compile. I have read that “arduino does not support the full C++ STL”. Does that mean that some or all of the STD library is unavailable to me? Is there a way that I can manually install the STD library to remedy this?