On 12/14/2014 08:36 AM, Rolf Eike Beer wrote: > The idea behind this API in OpenBSD is: if you are looking for the pseudo > numbers you need to call srand_deterministic(), i.e. you must explicitely > state that you want the not really random random numbers. Everyone else will > get real random.
CMake uses /dev/urandom on POSIX and wincrypt APIs on Windows to choose the seed specifically to get "really" random behavior. The *only* reason we continue to use s/rand() at all is to support the RANDOM_SEED API in string(RANDOM), AFAIK. One approach to dealing with this is to refactor the implementation of string(RANDOM) to use non-deterministic APIs until RANDOM_SEED is used and then use deterministic APIs after that. That will get better random values by default but still honor the existing API when it is used. -Brad -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake-developers
