Yves Parès <yves.pa...@gmail.com> wrote: > I've been in the past told that mersenne-random was much better than > the standard random package.
This is relative. The Mersenne Twister algorithm has a large memory footprint, but in relation to the size of the average Haskell program, this is probably not much of an issue. > So is it possible to use the fast and efficient mersenne generator > with the convenient and general random API? No, because mersenne-random provides an impure generator with a global state, as is also pointed out by the Haddock documentation. As an alternative consider the mersenne-random-pure64 and the cprng-aes packages. Both provide the interface you want. Personally I prefer the cprng-aes package, because it is reasonably fast and convenient for non-cryptographic applications, but also provides a strong Crypto-API interface, if you need cryptographically strong random numbers. Greets, Ertugrul -- nightmare = unsafePerformIO (getWrongWife >>= sex) http://ertes.de/
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