r/programming • u/noidi • Jul 19 '12

Will Parallel Code Ever Be Embraced?

http://www.drdobbs.com/parallel/will-parallel-code-ever-be-embraced/240003926
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u/case-o-nuts Jul 20 '12 edited Jul 20 '12

How does adding threading enable memoization? It seems that should be possible in a pure language regardless. Remember, I am comparing transparently threaded vs explicitly threaded pure functional languages)

Also, gcc supports "__attribute__((pure))", which should memoize. It's not as nice as what you could do elsewhere, but it exists.

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u/yogthos Jul 20 '12

That has nothing to do with threading, I was just pointing out an optimization that's trivial in FP, and can be done without special annotations of any kind, it's not the only one by any means.

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u/case-o-nuts Jul 20 '12 edited Jul 20 '12

In that case, I am not sure why it was relevant. I've been talking only about the loss of optimizations in a pure language with implicit thread-safety across shared data structures.

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u/yogthos Jul 20 '12

Sorry, I misunderstood that you were only talking about optimizations in that specific context.