1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <random> 11 12 // class random_device; 13 14 // explicit random_device(const string& token = "/dev/urandom"); 15 16 #include <random> 17 #include <cassert> 18 19 int main() 20 { 21 try 22 { 23 std::random_device r("wrong file"); 24 assert(false); 25 } 26 catch (const std::system_error& e) 27 { 28 } 29 { 30 std::random_device r; 31 } 32 { 33 std::random_device r("/dev/urandom");; 34 } 35 { 36 std::random_device r("/dev/random");; 37 } 38 } 39
