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37 lines
1.1 KiB
C++
37 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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#include <__config>
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#include <cstdio>
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#include <fstream>
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#if defined(_LIBCPP_WIN32API)
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# define WIN32_LEAN_AND_MEAN
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# define NOMINMAX
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# include <io.h>
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# include <windows.h>
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#endif
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_LIBCPP_BEGIN_NAMESPACE_STD
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#if defined(_LIBCPP_WIN32API)
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// Confirm that `HANDLE` is `void*` as implemented in `basic_filebuf`
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static_assert(std::same_as<HANDLE, void*>);
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_LIBCPP_EXPORTED_FROM_ABI void* __filebuf_windows_native_handle(FILE* __file) noexcept {
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// https://learn.microsoft.com/en-us/cpp/c-runtime-library/reference/get-osfhandle?view=msvc-170
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intptr_t __handle = _get_osfhandle(fileno(__file));
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if (__handle == -1)
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return nullptr;
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return reinterpret_cast<void*>(__handle);
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}
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#endif
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_LIBCPP_END_NAMESPACE_STD
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