Availability:built-in
[det]variant_hash(+Term,
-HashKey)Similar to variant_sha1/2,
but using a non-cryptographic hash and produces an integer result like term_hash/2.
This version does deal with attributed variables, processing them as
normal variables. This hash is primarily intended to speedup finding
variant terms in a set of terms. As variant_sha1/2,
cyclic terms are supported.