+#else
+ /* they want a hard coded seed, check that it is long enough */
+ assert( strlen(PERL_HASH_SEED) >= PERL_HASH_SEED_BYTES );
+#endif
+
+ /* now we use the chosen seed to initialize the state -
+ * in some configurations this may be a relatively speaking
+ * expensive operation, but we only have to do it once at startup */
+ PERL_HASH_SEED_STATE(PERL_HASH_SEED,PL_hash_state);
+
+#ifdef PERL_USE_SINGLE_CHAR_HASH_CACHE
+ /* we can build a special cache for 0/1 byte keys, if people choose
+ * I suspect most of the time it is not worth it */
+ {
+ char str[2]="\0";
+ int i;
+ for (i=0;i<256;i++) {
+ str[0]= i;
+ PERL_HASH_WITH_STATE(PL_hash_state,PL_hash_chars[i],str,1);
+ }
+ PERL_HASH_WITH_STATE(PL_hash_state,PL_hash_chars[256],str,0);
+ }
+#endif
+ /* at this point we have initialezed the hash function, and we can start
+ * constructing hashes */