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libcxx_old/test/std/numerics/rand/rand.device/eval.pass.cpp

51 lines
1.1 KiB
C++

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// See bugs.llvm.org/PR20183
//
// XFAIL: with_system_cxx_lib=macosx10.11
// XFAIL: with_system_cxx_lib=macosx10.10
// XFAIL: with_system_cxx_lib=macosx10.9
// XFAIL: with_system_cxx_lib=macosx10.8
// XFAIL: with_system_cxx_lib=macosx10.7
// <random>
// class random_device;
// result_type operator()();
#include <random>
#include <cassert>
#include <system_error>
#include "test_macros.h"
int main(int, char**)
{
{
std::random_device r;
std::random_device::result_type e = r();
((void)e); // Prevent unused warning
}
#ifndef TEST_HAS_NO_EXCEPTIONS
try
{
std::random_device r("/dev/null");
(void)r();
LIBCPP_ASSERT(false);
}
catch (const std::system_error&)
{
}
#endif
return 0;
}