Available on crate feature
Stack management utilities.
Tracks recursion depth.
The red zone is the amount of stack space that must be available on the current stack in order for
maybe_growto call the supplied closure without allocating a new stack.
The size of any freshly allocated stacks. It was chosen to match the default stack size for threads in Rust.
A trait for types which support bounded recursion to prevent stack overflow.
Grows the stack if necessary before invoking