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5d4439cc3e
release/17.x branch, commit 8f4dd44097c9ae25dd203d5ac87f3b48f854bba8 This adds the flag `-D_LIBCPP_PSTL_CPU_BACKEND_SERIAL`. A future enhancement could possibly pass something different if there is a compelling parallel implementation. That libdispatch one might be worth looking into.
62 lines
2.1 KiB
C++
Vendored
62 lines
2.1 KiB
C++
Vendored
//===----------------------------------------------------------------------===//
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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 <cstdlib>
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#include <print>
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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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# include <__system_error/system_error.h>
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# include "filesystem/error.h"
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#endif
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_LIBCPP_BEGIN_NAMESPACE_STD
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#ifdef _WIN32
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_LIBCPP_EXPORTED_FROM_ABI bool __is_windows_terminal(FILE* __stream) {
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// Note the Standard does this in one call, but it's unclear whether
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// an invalid handle is allowed when calling GetConsoleMode.
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//
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// https://learn.microsoft.com/en-us/cpp/c-runtime-library/reference/get-osfhandle?view=msvc-170
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// https://learn.microsoft.com/en-us/windows/console/getconsolemode
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intptr_t __handle = _get_osfhandle(fileno(__stream));
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if (__handle == -1)
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return false;
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unsigned long __mode;
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return GetConsoleMode(reinterpret_cast<void*>(__handle), &__mode);
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}
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# ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
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_LIBCPP_EXPORTED_FROM_ABI void
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__write_to_windows_console([[maybe_unused]] FILE* __stream, [[maybe_unused]] wstring_view __view) {
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// https://learn.microsoft.com/en-us/windows/console/writeconsole
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if (WriteConsoleW(reinterpret_cast<void*>(_get_osfhandle(fileno(__stream))), // clang-format aid
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__view.data(),
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__view.size(),
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nullptr,
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nullptr) == 0) {
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# ifndef _LIBCPP_HAS_NO_EXCEPTIONS
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// There is no __throw_system_error overload that takes an error code.
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throw system_error{filesystem::detail::make_windows_error(GetLastError()), "failed to write formatted output"};
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# else // _LIBCPP_HAS_NO_EXCEPTIONS
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std::abort();
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# endif // _LIBCPP_HAS_NO_EXCEPTIONS
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}
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}
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# endif // _LIBCPP_HAS_NO_WIDE_CHARACTERS
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#endif // _WIN32
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_LIBCPP_END_NAMESPACE_STD
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