hash: use unsigned, and operation.

* hash.c (struct hash): modulus and count change from cnum to
ucnum.
(hash_mark, hash_grow, copy_hash, do_weak_tables): Use ucnum
local vars.
(do_make_hash, make_similar_hash): Use c_unum to obtain modulus.
(gethash_c, gethash_e): Use & masking operation to reduce hash
value to table size.
(remhash): Move sanity check before decrement since unsigned
value can't go below zero.
(clearhash): Use ucnum and c_unum.
(hash_iter_peek): Use ucnum for chain count local.

* hash.h (struct hash_iter): chain changes from cnum to ucnum.

0 files changed, 0 insertions, 0 deletions