Hello everyone! I'm using quite a lot of Boost libraries and have by the time implemented some bits which enhance some parts of the library. E.g. I ported a four-tap shift register random number generator to the random number library. I herby post the code as it might be interesting for others since this type of random number generator is known to produce random numbers with very low 2 and 3 point correlations (see http://arxiv.org/abs/cond-mat/9710104 ). The code is partially taken from the gsl-library and extended to 64bit unsigned integers which gives random numbers of very high precision. However, you can use this code only with the latest random number library from Boost CVS as the numbers returned use the full range of 32bit or 64bit unsigned ints, which causes overflows with the code in boost 1.33.1 and 1.34_RC. So please have look at the code and submit it into CVS if the code is any good. Greetings, Sebastian Weber