hanchenye-llvm-project/libcxx/test/numerics/rand/rand.device/ctor.pass.cpp

39 lines
796 B
C++

//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. 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");;
}
}