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 // -*- 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
 //
 //===----------------------------------------------------------------------===//
 
 // WARNING, this entire header is generated by
 // utils/generate_indic_conjunct_break_table.py
 // DO NOT MODIFY!
 
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 #ifndef _LIBCPP___FORMAT_INDIC_CONJUNCT_BREAK_TABLE_H
 #define _LIBCPP___FORMAT_INDIC_CONJUNCT_BREAK_TABLE_H
 
 #include <__algorithm/ranges_upper_bound.h>
 #include <__config>
 #include <__cstddef/ptrdiff_t.h>
 #include <__iterator/access.h>
 #include <cstdint>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #  pragma GCC system_header
 #endif
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 #if _LIBCPP_STD_VER >= 20
 
 namespace __indic_conjunct_break {
 
 enum class __property : uint8_t {
   // Values generated from the data files.
   __Consonant,
   __Extend,
   __Linker,
 
   // The code unit has none of above properties.
   __none
 };
 
 /// The entries of the indic conjunct break property table.
 ///
 /// The data is generated from
 /// -  https://www.unicode.org/Public/UCD/latest/ucd/DerivedCoreProperties.txt
 ///
 /// The data has 3 values
 /// - bits [0, 1] The property. One of the values generated from the datafiles
 ///   of \ref __property
 /// - bits [2, 10] The size of the range.
 /// - bits [11, 31] The lower bound code point of the range. The upper bound of
 ///   the range is lower bound + size.
 ///
 /// The 9 bits for the size allow a maximum range of 512 elements. Some ranges
 /// in the Unicode tables are larger. They are stored in multiple consecutive
 /// ranges in the data table. An alternative would be to store the sizes in a
 /// separate 16-bit value. The original MSVC STL code had such an approach, but
 /// this approach uses less space for the data and is about 4% faster in the
 /// following benchmark.
 /// libcxx/benchmarks/std_format_spec_string_unicode.bench.cpp
 // clang-format off
 _LIBCPP_HIDE_FROM_ABI inline constexpr uint32_t __entries[201] = {
     0x00180139,
     0x001a807d,
     0x00241811,
     0x002c88b1,
     0x002df801,
     0x002e0805,
     0x002e2005,
     0x002e3801,
     0x00308029,
     0x00325851,
     0x00338001,
     0x0036b019,
     0x0036f815,
     0x00373805,
     0x0037500d,
     0x00388801,
     0x00398069,
     0x003f5821,
     0x003fe801,
     0x0040b00d,
     0x0040d821,
     0x00412809,
     0x00414811,
     0x0042c809,
     0x0044c01d,
     0x0046505d,
     0x00471871,
     0x0048a890,
     0x0049e001,
     0x004a6802,
     0x004a880d,
     0x004ac01c,
     0x004bc01c,
     0x004ca84c,
     0x004d5018,
     0x004d9000,
     0x004db00c,
     0x004de001,
     0x004e6802,
     0x004ee004,
     0x004ef800,
     0x004f8004,
     0x004ff001,
     0x0051e001,
     0x0054a84c,
     0x00555018,
     0x00559004,
     0x0055a810,
     0x0055e001,
     0x00566802,
     0x0057c800,
     0x0058a84c,
     0x00595018,
     0x00599004,
     0x0059a810,
     0x0059e001,
     0x005a6802,
     0x005ae004,
     0x005af800,
     0x005b8800,
     0x0060a84c,
     0x0061503c,
     0x0061e001,
     0x00626802,
     0x0062a805,
     0x0062c008,
     0x0065e001,
     0x0068a894,
     0x0069d805,
     0x006a6802,
     0x0071c009,
     0x0072400d,
     0x0075c009,
     0x0076400d,
     0x0078c005,
     0x0079a801,
     0x0079b801,
     0x0079c801,
     0x007b8805,
     0x007ba001,
     0x007bd00d,
     0x007c0001,
     0x007c1009,
     0x007c3005,
     0x007e3001,
     0x0081b801,
     0x0081c805,
     0x00846801,
     0x009ae809,
     0x00b8a001,
     0x00be9001,
     0x00bee801,
     0x00c54801,
     0x00c9c809,
     0x00d0b805,
     0x00d30001,
     0x00d3a81d,
     0x00d3f801,
     0x00d58035,
     0x00d5f83d,
     0x00d9a001,
     0x00db5821,
     0x00dd5801,
     0x00df3001,
     0x00e1b801,
     0x00e68009,
     0x00e6a031,
     0x00e71019,
     0x00e76801,
     0x00e7a001,
     0x00e7c005,
     0x00ee00fd,
     0x01006801,
     0x01068031,
     0x01070801,
     0x0107282d,
     0x01677809,
     0x016bf801,
     0x016f007d,
     0x01815015,
     0x0184c805,
     0x05337801,
     0x0533a025,
     0x0534f005,
     0x05378005,
     0x05416001,
     0x05470045,
     0x05495809,
     0x054d9801,
     0x05558001,
     0x05559009,
     0x0555b805,
     0x0555f005,
     0x05560801,
     0x0557b001,
     0x055f6801,
     0x07d8f001,
     0x07f1003d,
     0x080fe801,
     0x08170001,
     0x081bb011,
     0x08506801,
     0x08507801,
     0x0851c009,
     0x0851f801,
     0x08572805,
     0x0869200d,
     0x08755805,
     0x0877e809,
     0x087a3029,
     0x087c100d,
     0x08838001,
     0x0883f801,
     0x0885d001,
     0x08880009,
     0x08899805,
     0x088b9801,
     0x088e5001,
     0x0891b001,
     0x08974805,
     0x0899d805,
     0x089b3019,
     0x089b8011,
     0x08a23001,
     0x08a2f001,
     0x08a61801,
     0x08ae0001,
     0x08b5b801,
     0x08b95801,
     0x08c1d001,
     0x08c9f001,
     0x08ca1801,
     0x08d1a001,
     0x08d23801,
     0x08d4c801,
     0x08ea1001,
     0x08ea2005,
     0x08ecb801,
     0x08fa1001,
     0x0b578011,
     0x0b598019,
     0x0de4f001,
     0x0e8b2801,
     0x0e8b3809,
     0x0e8b7011,
     0x0e8bd81d,
     0x0e8c2819,
     0x0e8d500d,
     0x0e921009,
     0x0f000019,
     0x0f004041,
     0x0f00d819,
     0x0f011805,
     0x0f013011,
     0x0f047801,
     0x0f098019,
     0x0f157001,
     0x0f17600d,
     0x0f27600d,
     0x0f468019,
     0x0f4a2019};
 // clang-format on
 
 /// Returns the indic conjuct break property of a code point.
 [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr __property __get_property(const char32_t __code_point) noexcept {
   // The algorithm searches for the upper bound of the range and, when found,
   // steps back one entry. This algorithm is used since the code point can be
   // anywhere in the range. After a lower bound is found the next step is to
   // compare whether the code unit is indeed in the range.
   //
   // Since the entry contains a code unit, size, and property the code point
   // being sought needs to be adjusted. Just shifting the code point to the
   // proper position doesn't work; suppose an entry has property 0, size 1,
   // and lower bound 3. This results in the entry 0x1810.
   // When searching for code point 3 it will search for 0x1800, find 0x1810
   // and moves to the previous entry. Thus the lower bound value will never
   // be found.
   // The simple solution is to set the bits belonging to the property and
   // size. Then the upper bound for code point 3 will return the entry after
   // 0x1810. After moving to the previous entry the algorithm arrives at the
   // correct entry.
   ptrdiff_t __i = std::ranges::upper_bound(__entries, (__code_point << 11) | 0x7ffu) - __entries;
   if (__i == 0)
     return __property::__none;
 
   --__i;
   uint32_t __upper_bound = (__entries[__i] >> 11) + ((__entries[__i] >> 2) & 0b1'1111'1111);
   if (__code_point <= __upper_bound)
     return static_cast<__property>(__entries[__i] & 0b11);
 
   return __property::__none;
 }
 
 } // namespace __indic_conjunct_break
 
 #endif // _LIBCPP_STD_VER >= 20
 
 _LIBCPP_END_NAMESPACE_STD
 
 #endif // _LIBCPP___FORMAT_INDIC_CONJUNCT_BREAK_TABLE_H

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