Release Cosmopolitan v3.6.0

This release is an atomic upgrade to GCC 14.1.0 with C23 and C++23

third_party/libcxx/ryu/d2s.h

@@ -0,0 +1,62 @@
+//===----------------------------------------------------------------------===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+
+// Copyright (c) Microsoft Corporation.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
+// Copyright 2018 Ulf Adams
+// Copyright (c) Microsoft Corporation. All rights reserved.
+
+// Boost Software License - Version 1.0 - August 17th, 2003
+
+// Permission is hereby granted, free of charge, to any person or organization
+// obtaining a copy of the software and accompanying documentation covered by
+// this license (the "Software") to use, reproduce, display, distribute,
+// execute, and transmit the Software, and to prepare derivative works of the
+// Software, and to permit third-parties to whom the Software is furnished to
+// do so, all subject to the following:
+
+// The copyright notices in the Software and this entire statement, including
+// the above license grant, this restriction and the following disclaimer,
+// must be included in all copies of the Software, in whole or in part, and
+// all derivative works of the Software, unless such copies or derivative
+// works are solely in the form of machine-executable object code generated by
+// a source language processor.
+
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+
+#ifndef _LIBCPP_SRC_INCLUDE_RYU_DS2_H
+#define _LIBCPP_SRC_INCLUDE_RYU_DS2_H
+
+// Avoid formatting to keep the changes with the original code minimal.
+// clang-format off
+
+#include <__config>
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+inline constexpr int __DOUBLE_MANTISSA_BITS = 52;
+inline constexpr int __DOUBLE_EXPONENT_BITS = 11;
+inline constexpr int __DOUBLE_BIAS = 1023;
+
+inline constexpr int __DOUBLE_POW5_INV_BITCOUNT = 122;
+inline constexpr int __DOUBLE_POW5_BITCOUNT = 121;
+
+[[nodiscard]] to_chars_result __d2s_buffered_n(char* const _First, char* const _Last, const double __f, const chars_format _Fmt);
+
+_LIBCPP_END_NAMESPACE_STD
+
+// clang-format on
+
+#endif // _LIBCPP_SRC_INCLUDE_RYU_DS2_H