This. I've been loving Zig for some years now, but still write a lot of embedded C at work. I've started to use simple memory arenas in C and it just feels so

This. I've been loving Zig for some years now, but still write a lot of embedded C at work. I've started to use simple memory arenas in C and it just feels so damn _nice_. There's basically a shared lifetime for most of my transient allocations, which are nicely bounded in time by a "frame" of execution. Malloc/Free felt like a crazy amount of work, whereas an arena_reset(&ctx) just moves a pointer back to the first entry. Another person pointed out that arenas are not destructors, and this is a great point to make. If you're dealing with external resources, moving an arena index back to the beginning does not help - at all.