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//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include <__config>
#include <cstdlib>
#include <print>
#if defined(_LIBCPP_WIN32API)
# define WIN32_LEAN_AND_MEAN
# define NOMINMAX
# include <io.h>
# include <windows.h>
# include <__system_error/system_error.h>
# include "filesystem/error.h"
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
#ifdef _WIN32
_LIBCPP_EXPORTED_FROM_ABI bool __is_windows_terminal(FILE* __stream) {
// Note the Standard does this in one call, but it's unclear whether
// an invalid handle is allowed when calling GetConsoleMode.
//
// https://learn.microsoft.com/en-us/cpp/c-runtime-library/reference/get-osfhandle?view=msvc-170
// https://learn.microsoft.com/en-us/windows/console/getconsolemode
intptr_t __handle = _get_osfhandle(fileno(__stream));
if (__handle == -1)
return false;
unsigned long __mode;
return GetConsoleMode(reinterpret_cast<void*>(__handle), &__mode);
}
# ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
_LIBCPP_EXPORTED_FROM_ABI void
__write_to_windows_console([[maybe_unused]] FILE* __stream, [[maybe_unused]] wstring_view __view) {
// https://learn.microsoft.com/en-us/windows/console/writeconsole
if (WriteConsoleW(reinterpret_cast<void*>(_get_osfhandle(fileno(__stream))), // clang-format aid
__view.data(),
__view.size(),
nullptr,
nullptr) == 0) {
# ifndef _LIBCPP_HAS_NO_EXCEPTIONS
// There is no __throw_system_error overload that takes an error code.
throw system_error{filesystem::detail::make_windows_error(GetLastError()), "failed to write formatted output"};
# else // _LIBCPP_HAS_NO_EXCEPTIONS
std::abort();
# endif // _LIBCPP_HAS_NO_EXCEPTIONS
}
}
# endif // _LIBCPP_HAS_NO_WIDE_CHARACTERS
#endif // _WIN32
_LIBCPP_END_NAMESPACE_STD
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