llvm-project/libcxx/src/print.cpp
James Y Knight c3656afdf1
Revert "[libc++] Introduce ABI sensitive areas to avoid requiring _LIBCPP_HIDE_FROM_ABI everywhere (#131156)" (#141756)
This reverts commit c861fe8a71e64f3d2108c58147e7375cd9314521.

Unfortunately, this use of hidden visibility attributes causes
user-defined specializations of standard-library types to also be marked
hidden by default, which is incorrect. See discussion thread on #131156.

...and also reverts the follow-up commits:

Revert "[libc++] Add explicit ABI annotations to functions from the block runtime declared in <__functional/function.h> (#140592)"
This reverts commit 3e4c9dc299c35155934688184319d391b298fff7.

Revert "[libc++] Make ABI annotations explicit for windows-specific code (#140507)"
This reverts commit f73287e623a6c2e4a3485832bc3e10860cd26eb5.

Revert "[libc++][NFC] Replace a few "namespace std" with the correct macro (#140510)"
This reverts commit 1d411f27c769a32cb22ce50b9dc4421e34fd40dd.
2025-05-28 12:04:51 -04:00

65 lines
2.1 KiB
C++

//===----------------------------------------------------------------------===//
//
// 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>
#include <__system_error/system_error.h>
#include "filesystem/error.h"
#if defined(_LIBCPP_WIN32API)
# define WIN32_LEAN_AND_MEAN
# define NOMINMAX
# include <io.h>
# include <windows.h>
#elif __has_include(<unistd.h>)
# include <unistd.h>
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
#if defined(_LIBCPP_WIN32API)
_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);
}
# if _LIBCPP_HAS_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) {
std::__throw_system_error(filesystem::detail::get_last_error(), "failed to write formatted output");
}
}
# endif // _LIBCPP_HAS_WIDE_CHARACTERS
#elif __has_include(<unistd.h>) // !_LIBCPP_WIN32API
_LIBCPP_EXPORTED_FROM_ABI bool __is_posix_terminal(FILE* __stream) { return isatty(fileno(__stream)); }
#endif
_LIBCPP_END_NAMESPACE_STD