I would like to request the addition of 2 generators to Boost.Random. xoroshiro128+ http://xoroshiro.di.unimi.it/xoroshiro128plus.c Web page: http://xoroshiro.di.unimi.it/ A very fast PRNG, (quite a lot) faster than the fastest current boost generator, with a period of 2 ^ 128, which could/would be good for f.e. game programming (except for shuffling, see below). It also has a state of only 16 bytes on x64. The author states that the distribution is of higher quality than f.e. MT19937-64 http://www.math.sci.hiroshima-u.ac.jp/%7Em-mat/MT/VERSIONS/C-LANG/mt19937-64.... It's probably best to just read the web-page, as it goes into quite some detail and is in itself the summary of the research conducted in this area. Other than the normal boost complications, it's very easy to implement and I use my simplistic implementation to great satisfaction with the std and boost distributions. In this https://www.codeproject.com/Tips/1083372/Random-Number-Generator-Recommendat... article on CodeProject the issue of shuffling is raised. It's appears that shuffling of large arrays of data requires a generator with extremely long periods in order to be able to generate all the possible permutations. To this extent I would like to see in boost a generator like George Marsaglia's SuperKiss https://groups.google.com/forum/#!topic/comp.lang.fortran/QiTrbq0XeyM or/and a templated SFMT generator like this https://sourceforge.net/p/int64/svn/HEAD/tree/snips/sfmt.hpp one. degski -- "*Ihre sogenannte Religion wirkt bloß wie ein Opiat reizend, betäubend, Schmerzen aus Schwäche stillend.*" - Novalis 1798