> Unnecessarily over-complicated. Most of the complexity comes from the fact that C++ trivially supports consuming most C code, but with its own lifetime model

> Unnecessarily over-complicated. Most of the complexity comes from the fact that C++ trivially supports consuming most C code, but with its own lifetime model on top, and that it also offers great flexibility. Of course things become simpler when you ditch C source compat and can just declare "this variable will not be aliased by anyone else" AFAIK C++'s constexpr and TMP is less limited than Rust's is.