C++の乱数ライブラリが使いにくい話 ref: http://qiita.com/_EnumHack/items/25fc998873d1bc7d2276

file0.txt

std::random_device rd{};

std::cout << rd() << std::endl;

file1.cpp

std::random_device rd{};

std::vector<std::uint32_t> vec(10);

std::generate( vec.begin(), vec.end(), std::ref(rd) );

file2.txt

std::mt19937 mt;

std::cout << mt() << std::endl;

file3.cpp

std::random_device rd;

std::mt19937 mt(rd());

std::cout << mt() << std::endl;

file4.cpp

std::random_device rd{};

std::vector<std::uint32_t> vec(10);

std::generate( vec.begin(), vec.end(), std::ref(rd) );

std::mt19937 mt(std::seed_seq(vec.begin(), vec.end()));

file5.txt

std::mt19937 mt{ std::random_device{}() };

std::uniform_int_distribution<int> dist(1, 6);

for ( int i = 0 ; i != 10 ; ++i )
  std::cout << dist(mt) << std::endl;