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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/contrib/llvm-project/libcxx/include/__charconv/tables.h
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// -*- C++ -*-

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//===----------------------------------------------------------------------===//

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//

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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.

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// See https://llvm.org/LICENSE.txt for license information.

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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

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//

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//===----------------------------------------------------------------------===//

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#ifndef _LIBCPP___CHARCONV_TABLES

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#define _LIBCPP___CHARCONV_TABLES

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#include <__config>

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#include <cstdint>

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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)

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#  pragma GCC system_header

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#endif

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_LIBCPP_BEGIN_NAMESPACE_STD

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#if _LIBCPP_STD_VER >= 17

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namespace __itoa {

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inline constexpr char __base_2_lut[64] = {

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    '0', '0', '0', '0', '0', '0', '0', '1', '0', '0', '1', '0', '0', '0', '1', '1', '0', '1', '0', '0', '0', '1',

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    '0', '1', '0', '1', '1', '0', '0', '1', '1', '1', '1', '0', '0', '0', '1', '0', '0', '1', '1', '0', '1', '0',

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    '1', '0', '1', '1', '1', '1', '0', '0', '1', '1', '0', '1', '1', '1', '1', '0', '1', '1', '1', '1'};

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inline constexpr char __base_8_lut[128] = {

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    '0', '0', '0', '1', '0', '2', '0', '3', '0', '4', '0', '5', '0', '6', '0', '7', '1', '0', '1', '1', '1', '2',

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    '1', '3', '1', '4', '1', '5', '1', '6', '1', '7', '2', '0', '2', '1', '2', '2', '2', '3', '2', '4', '2', '5',

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    '2', '6', '2', '7', '3', '0', '3', '1', '3', '2', '3', '3', '3', '4', '3', '5', '3', '6', '3', '7', '4', '0',

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    '4', '1', '4', '2', '4', '3', '4', '4', '4', '5', '4', '6', '4', '7', '5', '0', '5', '1', '5', '2', '5', '3',

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    '5', '4', '5', '5', '5', '6', '5', '7', '6', '0', '6', '1', '6', '2', '6', '3', '6', '4', '6', '5', '6', '6',

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    '6', '7', '7', '0', '7', '1', '7', '2', '7', '3', '7', '4', '7', '5', '7', '6', '7', '7'};

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inline constexpr char __base_16_lut[512] = {

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    '0', '0', '0', '1', '0', '2', '0', '3', '0', '4', '0', '5', '0', '6', '0', '7', '0', '8', '0', '9', '0', 'a', '0',

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    'b', '0', 'c', '0', 'd', '0', 'e', '0', 'f', '1', '0', '1', '1', '1', '2', '1', '3', '1', '4', '1', '5', '1', '6',

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    '1', '7', '1', '8', '1', '9', '1', 'a', '1', 'b', '1', 'c', '1', 'd', '1', 'e', '1', 'f', '2', '0', '2', '1', '2',

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    '2', '2', '3', '2', '4', '2', '5', '2', '6', '2', '7', '2', '8', '2', '9', '2', 'a', '2', 'b', '2', 'c', '2', 'd',

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    '2', 'e', '2', 'f', '3', '0', '3', '1', '3', '2', '3', '3', '3', '4', '3', '5', '3', '6', '3', '7', '3', '8', '3',

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    '9', '3', 'a', '3', 'b', '3', 'c', '3', 'd', '3', 'e', '3', 'f', '4', '0', '4', '1', '4', '2', '4', '3', '4', '4',

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    '4', '5', '4', '6', '4', '7', '4', '8', '4', '9', '4', 'a', '4', 'b', '4', 'c', '4', 'd', '4', 'e', '4', 'f', '5',

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    '0', '5', '1', '5', '2', '5', '3', '5', '4', '5', '5', '5', '6', '5', '7', '5', '8', '5', '9', '5', 'a', '5', 'b',

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    '5', 'c', '5', 'd', '5', 'e', '5', 'f', '6', '0', '6', '1', '6', '2', '6', '3', '6', '4', '6', '5', '6', '6', '6',

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    '7', '6', '8', '6', '9', '6', 'a', '6', 'b', '6', 'c', '6', 'd', '6', 'e', '6', 'f', '7', '0', '7', '1', '7', '2',

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    '7', '3', '7', '4', '7', '5', '7', '6', '7', '7', '7', '8', '7', '9', '7', 'a', '7', 'b', '7', 'c', '7', 'd', '7',

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    'e', '7', 'f', '8', '0', '8', '1', '8', '2', '8', '3', '8', '4', '8', '5', '8', '6', '8', '7', '8', '8', '8', '9',

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    '8', 'a', '8', 'b', '8', 'c', '8', 'd', '8', 'e', '8', 'f', '9', '0', '9', '1', '9', '2', '9', '3', '9', '4', '9',

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    '5', '9', '6', '9', '7', '9', '8', '9', '9', '9', 'a', '9', 'b', '9', 'c', '9', 'd', '9', 'e', '9', 'f', 'a', '0',

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    'a', '1', 'a', '2', 'a', '3', 'a', '4', 'a', '5', 'a', '6', 'a', '7', 'a', '8', 'a', '9', 'a', 'a', 'a', 'b', 'a',

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    'c', 'a', 'd', 'a', 'e', 'a', 'f', 'b', '0', 'b', '1', 'b', '2', 'b', '3', 'b', '4', 'b', '5', 'b', '6', 'b', '7',

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    'b', '8', 'b', '9', 'b', 'a', 'b', 'b', 'b', 'c', 'b', 'd', 'b', 'e', 'b', 'f', 'c', '0', 'c', '1', 'c', '2', 'c',

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    '3', 'c', '4', 'c', '5', 'c', '6', 'c', '7', 'c', '8', 'c', '9', 'c', 'a', 'c', 'b', 'c', 'c', 'c', 'd', 'c', 'e',

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    'c', 'f', 'd', '0', 'd', '1', 'd', '2', 'd', '3', 'd', '4', 'd', '5', 'd', '6', 'd', '7', 'd', '8', 'd', '9', 'd',

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    'a', 'd', 'b', 'd', 'c', 'd', 'd', 'd', 'e', 'd', 'f', 'e', '0', 'e', '1', 'e', '2', 'e', '3', 'e', '4', 'e', '5',

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    'e', '6', 'e', '7', 'e', '8', 'e', '9', 'e', 'a', 'e', 'b', 'e', 'c', 'e', 'd', 'e', 'e', 'e', 'f', 'f', '0', 'f',

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    '1', 'f', '2', 'f', '3', 'f', '4', 'f', '5', 'f', '6', 'f', '7', 'f', '8', 'f', '9', 'f', 'a', 'f', 'b', 'f', 'c',

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    'f', 'd', 'f', 'e', 'f', 'f'};

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inline constexpr uint32_t __pow10_32[10] = {

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    UINT32_C(0),

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    UINT32_C(10),

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    UINT32_C(100),

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    UINT32_C(1000),

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    UINT32_C(10000),

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    UINT32_C(100000),

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    UINT32_C(1000000),

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    UINT32_C(10000000),

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    UINT32_C(100000000),

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    UINT32_C(1000000000)};

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inline constexpr uint64_t __pow10_64[20] = {

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    UINT64_C(0),

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    UINT64_C(10),

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    UINT64_C(100),

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    UINT64_C(1000),

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    UINT64_C(10000),

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    UINT64_C(100000),

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    UINT64_C(1000000),

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    UINT64_C(10000000),

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    UINT64_C(100000000),

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    UINT64_C(1000000000),

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    UINT64_C(10000000000),

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    UINT64_C(100000000000),

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    UINT64_C(1000000000000),

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    UINT64_C(10000000000000),

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    UINT64_C(100000000000000),

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    UINT64_C(1000000000000000),

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    UINT64_C(10000000000000000),

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    UINT64_C(100000000000000000),

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    UINT64_C(1000000000000000000),

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    UINT64_C(10000000000000000000)};

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#  ifndef _LIBCPP_HAS_NO_INT128

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inline constexpr int __pow10_128_offset      = 0;

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inline constexpr __uint128_t __pow10_128[40] = {

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    UINT64_C(0),

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    UINT64_C(10),

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    UINT64_C(100),

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    UINT64_C(1000),

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    UINT64_C(10000),

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    UINT64_C(100000),

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    UINT64_C(1000000),

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    UINT64_C(10000000),

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    UINT64_C(100000000),

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    UINT64_C(1000000000),

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    UINT64_C(10000000000),

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    UINT64_C(100000000000),

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    UINT64_C(1000000000000),

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    UINT64_C(10000000000000),

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    UINT64_C(100000000000000),

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    UINT64_C(1000000000000000),

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    UINT64_C(10000000000000000),

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    UINT64_C(100000000000000000),

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    UINT64_C(1000000000000000000),

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    UINT64_C(10000000000000000000),

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    __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(10),

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    __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(100),

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    __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(1000),

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    __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(10000),

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    __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(100000),

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    __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(1000000),

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    __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(10000000),

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    __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(100000000),

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    __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(1000000000),

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    __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(10000000000),

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    __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(100000000000),

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    __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(1000000000000),

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    __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(10000000000000),

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    __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(100000000000000),

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    __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(1000000000000000),

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    __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(10000000000000000),

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    __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(100000000000000000),

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    __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(1000000000000000000),

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    __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(10000000000000000000),

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    (__uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(10000000000000000000)) * 10};

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#  endif

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inline constexpr char __digits_base_10[200] = {

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    // clang-format off

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    '0', '0', '0', '1', '0', '2', '0', '3', '0', '4', '0', '5', '0', '6', '0', '7', '0', '8', '0', '9',

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    '1', '0', '1', '1', '1', '2', '1', '3', '1', '4', '1', '5', '1', '6', '1', '7', '1', '8', '1', '9',

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    '2', '0', '2', '1', '2', '2', '2', '3', '2', '4', '2', '5', '2', '6', '2', '7', '2', '8', '2', '9',

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    '3', '0', '3', '1', '3', '2', '3', '3', '3', '4', '3', '5', '3', '6', '3', '7', '3', '8', '3', '9',

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    '4', '0', '4', '1', '4', '2', '4', '3', '4', '4', '4', '5', '4', '6', '4', '7', '4', '8', '4', '9',

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    '5', '0', '5', '1', '5', '2', '5', '3', '5', '4', '5', '5', '5', '6', '5', '7', '5', '8', '5', '9',

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    '6', '0', '6', '1', '6', '2', '6', '3', '6', '4', '6', '5', '6', '6', '6', '7', '6', '8', '6', '9',

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    '7', '0', '7', '1', '7', '2', '7', '3', '7', '4', '7', '5', '7', '6', '7', '7', '7', '8', '7', '9',

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    '8', '0', '8', '1', '8', '2', '8', '3', '8', '4', '8', '5', '8', '6', '8', '7', '8', '8', '8', '9',

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    '9', '0', '9', '1', '9', '2', '9', '3', '9', '4', '9', '5', '9', '6', '9', '7', '9', '8', '9', '9'};

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// clang-format on

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} // namespace __itoa

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#endif // _LIBCPP_STD_VER >= 17

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_LIBCPP_END_NAMESPACE_STD

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#endif // _LIBCPP___CHARCONV_TABLES

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