1 files changed, 64 insertions, 0 deletions
diff --git a/contrib/llvm-project/libcxx/src/print.cpp b/contrib/llvm-project/libcxx/src/print.cpp
new file mode 100644
index 000000000000..8fa59fdd097b
--- /dev/null
+++ b/contrib/llvm-project/libcxx/src/print.cpp
@@ -0,0 +1,64 @@
+//===----------------------------------------------------------------------===//
+//
+// 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);
+}
+
+#  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) {
+    __throw_system_error(filesystem::detail::make_windows_error(GetLastError()), "failed to write formatted output");
+  }
+}
+#  endif // _LIBCPP_HAS_NO_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