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 // result_type operator()();
15 
16 #include <random>
17 #include <cassert>
18 
main()19 int main()
20 {
21     {
22         std::random_device r;
23         std::random_device::result_type e = r();
24     }
25 
26     try
27     {
28         std::random_device r("/dev/null");
29         r();
30         assert(false);
31     }
32     catch (const std::system_error& e)
33     {
34     }
35 }
36