Update libcxx to llvmorg-17.0.6

Update libcxx to llvmorg-17.0.6
c871ef572c71b4fef22d4a9e65bcebc57e625aea

1 files changed, 80 insertions, 0 deletions

diff --git a/contrib/libs/cxxsupp/libcxx/include/__thread/formatter.h b/contrib/libs/cxxsupp/libcxx/include/__thread/formatter.h
new file mode 100644
index 0000000000..0e3a11c514
--- /dev/null
+++ b/contrib/libs/cxxsupp/libcxx/include/__thread/formatter.h
@@ -0,0 +1,80 @@
+// -*- 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
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___THREAD_FORMATTER_H
+#define _LIBCPP___THREAD_FORMATTER_H
+
+#include <__concepts/arithmetic.h>
+#include <__config>
+#include <__format/concepts.h>
+#include <__format/format_parse_context.h>
+#include <__format/formatter.h>
+#include <__format/formatter_integral.h>
+#include <__format/parser_std_format_spec.h>
+#include <__thread/id.h>
+#include <__type_traits/conditional.h>
+#include <__type_traits/is_pointer.h>
+#include <__type_traits/is_same.h>
+#include <cstdint>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+#  pragma GCC system_header
+#endif
+
+#if _LIBCPP_STD_VER >= 23
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+#ifndef _LIBCPP_HAS_NO_THREADS
+
+template <__fmt_char_type _CharT>
+struct _LIBCPP_TEMPLATE_VIS formatter<__thread_id, _CharT> {
+  public:
+    template <class _ParseContext>
+    _LIBCPP_HIDE_FROM_ABI constexpr typename _ParseContext::iterator parse(_ParseContext& __ctx) {
+        return __parser_.__parse(__ctx, __format_spec::__fields_fill_align_width);
+    }
+
+    template <class _FormatContext>
+    _LIBCPP_HIDE_FROM_ABI typename _FormatContext::iterator format(__thread_id __id, _FormatContext& __ctx) const {
+        // In __threading_support __libcpp_thread_id is either a
+        // unsigned long long or a pthread_t.
+        //
+        // The type of pthread_t is left unspecified in POSIX so it can be any
+        // type. The most logical types are an integral or pointer.
+        // On Linux systems pthread_t is an unsigned long long.
+        // On Apple systems pthread_t is a pointer type.
+        //
+        // Note the output should match what the stream operator does. Since
+        // the ostream operator has been shipped years before this formatter
+        // was added to the Standard, this formatter does what the stream
+        // operator does. This may require platform specific changes.
+
+        using _Tp = decltype(__get_underlying_id(__id));
+        using _Cp = conditional_t<integral<_Tp>, _Tp, conditional_t<is_pointer_v<_Tp>, uintptr_t, void>>;
+        static_assert(!is_same_v<_Cp, void>, "unsupported thread::id type, please file a bug report");
+
+        __format_spec::__parsed_specifications<_CharT> __specs = __parser_.__get_parsed_std_specifications(__ctx);
+        if constexpr (is_pointer_v<_Tp>) {
+          __specs.__std_.__alternate_form_ = true;
+          __specs.__std_.__type_           = __format_spec::__type::__hexadecimal_lower_case;
+        }
+        return __formatter::__format_integer(reinterpret_cast<_Cp>(__get_underlying_id(__id)), __ctx, __specs);
+    }
+
+    __format_spec::__parser<_CharT> __parser_{.__alignment_ = __format_spec::__alignment::__right};
+};
+
+#endif // !_LIBCPP_HAS_NO_THREADS
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP_STD_VER >= 23
+
+#endif // _LIBCPP___THREAD_FORMATTER_H