# Stackbox Stackbox is a stack-preferred Box alternative. ## New Boxes There are two available types, `SmallBox` and `StackBox`. Both take an inner type like `Box` and an additional const-generic parameter signifying the maximum stack size. Convenience types such as `SmallBox32` and `StackBox32` are provided. The difference between `SmallBox` and `StackBox` is that `StackBox` will not fall back to the heap, but `SmallBox` will. `StackBox` panics if ifs size is overflowed. ## Features * `std` -- default, uses stdlib for global allocator in `SmallBox` * `global_alloc_fill` -- if not using `std`, this feature will allow `SmallBox` to directly hook into the global allocator. If neither this feature or `std` are enabled, only `StackBox` is available.