I'm interested in using the functionaliy from the random library. I arm wrestled with the documentation and couldn't get my ap to compile. of the first page of the documentation. I checked the test matrix and the library is showing no errors. So I just tried to compile random_demo.cpp mentioned in the forth line. I got a bunch of cryptic (to me) warnings. I don't think this should happen. They are just warnings so I suppose they are irrelevant to my own problems but still it's annoying. Robert Ramey Compiling... generate_test_data.c c:\BoostRelease\boost\random\detail\pass_through_engine.hpp(49) : warning C4512: 'boost::random::detail::pass_through_engine<UniformRandomNumberGenerator>' : assignment operator could not be generated with [ UniformRandomNumberGenerator=boost::random::linear_congruential<boost::int32_t,48271,0,2147483647,399268537> ] c:\BoostRelease\boost\random\variate_generator.hpp(92) : see reference to class template instantiation 'boost::random::detail::pass_through_engine<UniformRandomNumberGenerator>' being compiled with [ UniformRandomNumberGenerator=boost::random::linear_congruential<boost::int32_t,48271,0,2147483647,399268537> ] c:\Projects\vario\test_windspeed\generate_test_data.c(32) : see reference to class template instantiation 'boost::variate_generator<Engine,Distribution>' being compiled with [ Engine=base_generator_type &, Distribution=distribution_type ]