39 lines
811 B
C++
39 lines
811 B
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is dual licensed under the MIT and the University of Illinois Open
|
|
// Source Licenses. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// <random>
|
|
|
|
// class random_device;
|
|
|
|
// explicit random_device(const string& token = "/dev/urandom");
|
|
|
|
#include <random>
|
|
#include <cassert>
|
|
|
|
int main()
|
|
{
|
|
try
|
|
{
|
|
std::random_device r("wrong file");
|
|
assert(false);
|
|
}
|
|
catch (const std::system_error& e)
|
|
{
|
|
}
|
|
{
|
|
std::random_device r;
|
|
}
|
|
{
|
|
std::random_device r("/dev/urandom");;
|
|
}
|
|
{
|
|
std::random_device r("/dev/random");;
|
|
}
|
|
}
|