4d9f97b40b
Make sure we appropriately retry calls to read if the return result is less than what we asked for. Additionally, check and handle IO errors: EINTR results in the read operation getting restarted; other errors turn into exceptions. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@210061 91177308-0d34-0410-b5e6-96231b3b80d8
36 lines
720 B
C++
36 lines
720 B
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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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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int main()
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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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}
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try
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{
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std::random_device r("/dev/null");
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r();
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assert(false);
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}
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catch (const std::system_error& e)
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{
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}
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}
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