To answer your question directly, PERL_HASH is exposed by B: 

$ perl -MB=hash -le 'print hash("foo")'
0xad6987c4
$ perl -MB=hash -le 'print hash("foo")'
0x5fd458f7

[download]

But as I said, you may want to consider using a standardized function, which when implemented in XS should be "nearly as fast". Also, keep in mind that in hashes, collisions are acceptable - short checksums will do that, and since you haven't told us anything about the problem you're trying to solve, we can't know if that is appropriate in your case.

In reply to Re: 32bit/64bit hash function: Use perls internal hash function? by haukex
in thread 32bit/64bit hash function: Use perls internal hash function? by sectokia

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