The C++ library is algorithmically and data structure feature complete for most purposes. It doesn't have what boost and other libraries have, but that's okay.

The C++ library is algorithmically and data structure feature complete for most purposes. It doesn't have what boost and other libraries have, but that's okay. Ideally, a platform should ship without a standard library and use package management for all but built in types. The problem with C++ template metaprogramming style is symbol length, the notation ordering (insane levels of nesting), and diagnostics generated from those that easily turn into absurdity. Another issue is static languages lack universal diagnostics, introspection, and symbolic evaluation capabilities of dynamic languages with REPLs and remote debuggers. Dynamic languages are often missing "compile" (deployment)- or at-boot-runtime type checking, data race condition borrow/mutability/concurrency analysis, and monkeypatch protections.