h = fast_hash (&lang, sizeof (unsigned int), h);
h = fast_hash (&domain, sizeof (unsigned int), h);
h = fast_hash (&theclass, sizeof (unsigned int), h);
h = fast_hash (&lang, sizeof (unsigned int), h);
h = fast_hash (&domain, sizeof (unsigned int), h);
h = fast_hash (&theclass, sizeof (unsigned int), h);