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
main()19 int main()
20 {
21 std::random_device r;
22 double e = r.entropy();
23 ((void)e); // Prevent unused warning
24 }
25