Comment by jstimpfle

Feels like typical improvement/perfection tunnel vision syndrome to me, though. That syndrome is engrained in C++ community and I think also Rust community, although it looks like the latter took the chance to do many things better from the start learning from C++'s mistakes.

Realloc is pretty much never the right way in whatever form, and I've never seen any need to include realloc in any of my own allocators (mostly blockallocators and linear allocators and pools/free lists, sometimes using malloc/free).