Kind of true for unique_ptr as a C++ construct. Sadly if the platform ABI is not ignored there is (usually? might be free on some platforms) overhead relative

Kind of true for unique_ptr as a C++ construct. Sadly if the platform ABI is not ignored there is (usually? might be free on some platforms) overhead relative to a void* when passing one between functions. Also there's the usual code size / compile time hazards of templates.