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// double entropy() const; 15 16#include <random> 17#include <cassert> 18 19int main() 20{ 21 std::random_device r; 22 double e = r.entropy(); 23 ((void)e); // Prevent unused warning 24} 25