a7f9895cc1
Since those features are general properties of the environment, it makes sense to use them from libc++abi too, and so the name libcpp-has-no-xxx doesn't make sense. Differential Revision: https://reviews.llvm.org/D126482
46 lines
1.1 KiB
C++
46 lines
1.1 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: no-random-device
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// <random>
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// class random_device;
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// result_type operator()();
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#include <random>
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#include <cassert>
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#include <system_error>
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#include "test_macros.h"
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int main(int, char**)
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{
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{
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std::random_device r;
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std::random_device::result_type e = r();
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((void)e); // Prevent unused warning
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}
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// When using the `/dev/urandom` implementation, make sure that we throw
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// an exception when we hit EOF while reading the custom-provided file.
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#if !defined(TEST_HAS_NO_EXCEPTIONS) && defined(_LIBCPP_USING_DEV_RANDOM)
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{
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std::random_device r("/dev/null");
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try {
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(void)r();
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LIBCPP_ASSERT(false);
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} catch (const std::system_error&) {
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}
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}
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#endif
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return 0;
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}
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