module Core_stack:sig..end
Stack_intf for documentation.
    The implementation will grow the array as necessary.  By default, it will not
    automatically shrink the array.  One can use set_auto_shrink to change
    auto-shrinking behavior.
include Stack_intf.S
val set_auto_shrink : 'a t -> bool -> unitset_auto_shrink t controls whether t's array will automatically shrink when the
    number of elements on the stack falls below 1/4 of the array size.