Hi, Some time ago, I thought about adding CryptoAPI[1] support for 'std::random_device'. Now, I have some free time, and I want to do it. But, after the analysis of the 'libstdc++-v3/include/bits/random.h' and 'libstdc++-v3/src/c++11/random.cc' files, I had a few questions. Firstly, when building gcc-trunk using MinGW, the _GLIBCXX_USE_RANDOM_TR1 macro is not defined (I couldn't understand was it right or not?). Thus, the following methods are used: 'void random_device::_M_init_pretr1(const std::string& token)' 'random_device::result_type random_device::_M_getval_pretr1()' The 'random_device::_M_getval_pretr1()' method, currently, as a source of pseudo-random numbers is using the '_M_mt' member of the 'std::mt19937' type. And here I do not understand why this is happening, is it right, and why it's done that way? Or maybe, I configure GCC incorrectly, and the _GLIBCXX_USE_RANDOM_TR1 macro must be defined? Thanks! [1] http://msdn.microsoft.com/en-us/library/windows/desktop/aa380255(v=vs.85).aspx -- Regards, niXman ___________________________________________________ Dual-target(32 & 64-bit) MinGW compilers for 32 and 64-bit Windows: http://sourceforge.net/projects/mingwbuilds/ ___________________________________________________ Another online IDE: http://liveworkspace.org/
