fold_<T> state v
incorporates a value v
of type <T> into the hash-state,
returning a modified hash-state. Implementations of the fold_<T>
functions may
mutate the state
argument in place, and return a reference to it. Implementations
of the fold_<T> functions should not allocate.
reset ?seed state
initializes/resets a hash-state with the given seed
, or else a
default-seed. Argument state
may be mutated. Should not allocate.
module For_tests : sig ... end