| // -*- 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___CHARCONV_TABLES |
| #define _LIBCPP___CHARCONV_TABLES |
| |
| #include <__config> |
| #include <cstdint> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| # pragma GCC system_header |
| #endif |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| #ifndef _LIBCPP_CXX03_LANG |
| |
| namespace __itoa { |
| |
| /// Contains the charconv helper tables. |
| /// |
| /// In C++17 these could be inline constexpr variable, but libc++ supports |
| /// charconv for integrals in C++11 mode. |
| template <class = void> |
| struct __table { |
| static const char __base_2_lut[64]; |
| static const char __base_8_lut[128]; |
| static const char __base_16_lut[512]; |
| |
| static const uint32_t __pow10_32[10]; |
| static const uint64_t __pow10_64[20]; |
| # ifndef _LIBCPP_HAS_NO_INT128 |
| // TODO FMT Reduce the number of entries in this table. |
| static const __uint128_t __pow10_128[40]; |
| static const int __pow10_128_offset = 0; |
| # endif |
| static const char __digits_base_10[200]; |
| }; |
| |
| template <class _Tp> |
| const char __table<_Tp>::__base_2_lut[64] = { |
| '0', '0', '0', '0', '0', '0', '0', '1', '0', '0', '1', '0', '0', '0', '1', '1', '0', '1', '0', '0', '0', '1', |
| '0', '1', '0', '1', '1', '0', '0', '1', '1', '1', '1', '0', '0', '0', '1', '0', '0', '1', '1', '0', '1', '0', |
| '1', '0', '1', '1', '1', '1', '0', '0', '1', '1', '0', '1', '1', '1', '1', '0', '1', '1', '1', '1'}; |
| |
| template <class _Tp> |
| const char __table<_Tp>::__base_8_lut[128] = { |
| '0', '0', '0', '1', '0', '2', '0', '3', '0', '4', '0', '5', '0', '6', '0', '7', '1', '0', '1', '1', '1', '2', |
| '1', '3', '1', '4', '1', '5', '1', '6', '1', '7', '2', '0', '2', '1', '2', '2', '2', '3', '2', '4', '2', '5', |
| '2', '6', '2', '7', '3', '0', '3', '1', '3', '2', '3', '3', '3', '4', '3', '5', '3', '6', '3', '7', '4', '0', |
| '4', '1', '4', '2', '4', '3', '4', '4', '4', '5', '4', '6', '4', '7', '5', '0', '5', '1', '5', '2', '5', '3', |
| '5', '4', '5', '5', '5', '6', '5', '7', '6', '0', '6', '1', '6', '2', '6', '3', '6', '4', '6', '5', '6', '6', |
| '6', '7', '7', '0', '7', '1', '7', '2', '7', '3', '7', '4', '7', '5', '7', '6', '7', '7'}; |
| |
| template <class _Tp> |
| const char __table<_Tp>::__base_16_lut[512] = { |
| '0', '0', '0', '1', '0', '2', '0', '3', '0', '4', '0', '5', '0', '6', '0', '7', '0', '8', '0', '9', '0', 'a', '0', |
| 'b', '0', 'c', '0', 'd', '0', 'e', '0', 'f', '1', '0', '1', '1', '1', '2', '1', '3', '1', '4', '1', '5', '1', '6', |
| '1', '7', '1', '8', '1', '9', '1', 'a', '1', 'b', '1', 'c', '1', 'd', '1', 'e', '1', 'f', '2', '0', '2', '1', '2', |
| '2', '2', '3', '2', '4', '2', '5', '2', '6', '2', '7', '2', '8', '2', '9', '2', 'a', '2', 'b', '2', 'c', '2', 'd', |
| '2', 'e', '2', 'f', '3', '0', '3', '1', '3', '2', '3', '3', '3', '4', '3', '5', '3', '6', '3', '7', '3', '8', '3', |
| '9', '3', 'a', '3', 'b', '3', 'c', '3', 'd', '3', 'e', '3', 'f', '4', '0', '4', '1', '4', '2', '4', '3', '4', '4', |
| '4', '5', '4', '6', '4', '7', '4', '8', '4', '9', '4', 'a', '4', 'b', '4', 'c', '4', 'd', '4', 'e', '4', 'f', '5', |
| '0', '5', '1', '5', '2', '5', '3', '5', '4', '5', '5', '5', '6', '5', '7', '5', '8', '5', '9', '5', 'a', '5', 'b', |
| '5', 'c', '5', 'd', '5', 'e', '5', 'f', '6', '0', '6', '1', '6', '2', '6', '3', '6', '4', '6', '5', '6', '6', '6', |
| '7', '6', '8', '6', '9', '6', 'a', '6', 'b', '6', 'c', '6', 'd', '6', 'e', '6', 'f', '7', '0', '7', '1', '7', '2', |
| '7', '3', '7', '4', '7', '5', '7', '6', '7', '7', '7', '8', '7', '9', '7', 'a', '7', 'b', '7', 'c', '7', 'd', '7', |
| 'e', '7', 'f', '8', '0', '8', '1', '8', '2', '8', '3', '8', '4', '8', '5', '8', '6', '8', '7', '8', '8', '8', '9', |
| '8', 'a', '8', 'b', '8', 'c', '8', 'd', '8', 'e', '8', 'f', '9', '0', '9', '1', '9', '2', '9', '3', '9', '4', '9', |
| '5', '9', '6', '9', '7', '9', '8', '9', '9', '9', 'a', '9', 'b', '9', 'c', '9', 'd', '9', 'e', '9', 'f', 'a', '0', |
| 'a', '1', 'a', '2', 'a', '3', 'a', '4', 'a', '5', 'a', '6', 'a', '7', 'a', '8', 'a', '9', 'a', 'a', 'a', 'b', 'a', |
| 'c', 'a', 'd', 'a', 'e', 'a', 'f', 'b', '0', 'b', '1', 'b', '2', 'b', '3', 'b', '4', 'b', '5', 'b', '6', 'b', '7', |
| 'b', '8', 'b', '9', 'b', 'a', 'b', 'b', 'b', 'c', 'b', 'd', 'b', 'e', 'b', 'f', 'c', '0', 'c', '1', 'c', '2', 'c', |
| '3', 'c', '4', 'c', '5', 'c', '6', 'c', '7', 'c', '8', 'c', '9', 'c', 'a', 'c', 'b', 'c', 'c', 'c', 'd', 'c', 'e', |
| 'c', 'f', 'd', '0', 'd', '1', 'd', '2', 'd', '3', 'd', '4', 'd', '5', 'd', '6', 'd', '7', 'd', '8', 'd', '9', 'd', |
| 'a', 'd', 'b', 'd', 'c', 'd', 'd', 'd', 'e', 'd', 'f', 'e', '0', 'e', '1', 'e', '2', 'e', '3', 'e', '4', 'e', '5', |
| 'e', '6', 'e', '7', 'e', '8', 'e', '9', 'e', 'a', 'e', 'b', 'e', 'c', 'e', 'd', 'e', 'e', 'e', 'f', 'f', '0', 'f', |
| '1', 'f', '2', 'f', '3', 'f', '4', 'f', '5', 'f', '6', 'f', '7', 'f', '8', 'f', '9', 'f', 'a', 'f', 'b', 'f', 'c', |
| 'f', 'd', 'f', 'e', 'f', 'f'}; |
| |
| template <class _Tp> |
| const uint32_t __table<_Tp>::__pow10_32[10] = { |
| UINT32_C(0), UINT32_C(10), UINT32_C(100), UINT32_C(1000), UINT32_C(10000), |
| UINT32_C(100000), UINT32_C(1000000), UINT32_C(10000000), UINT32_C(100000000), UINT32_C(1000000000)}; |
| |
| template <class _Tp> |
| const uint64_t __table<_Tp>::__pow10_64[20] = {UINT64_C(0), |
| UINT64_C(10), |
| UINT64_C(100), |
| UINT64_C(1000), |
| UINT64_C(10000), |
| UINT64_C(100000), |
| UINT64_C(1000000), |
| UINT64_C(10000000), |
| UINT64_C(100000000), |
| UINT64_C(1000000000), |
| UINT64_C(10000000000), |
| UINT64_C(100000000000), |
| UINT64_C(1000000000000), |
| UINT64_C(10000000000000), |
| UINT64_C(100000000000000), |
| UINT64_C(1000000000000000), |
| UINT64_C(10000000000000000), |
| UINT64_C(100000000000000000), |
| UINT64_C(1000000000000000000), |
| UINT64_C(10000000000000000000)}; |
| |
| # ifndef _LIBCPP_HAS_NO_INT128 |
| template <class _Tp> |
| const __uint128_t __table<_Tp>::__pow10_128[40] = { |
| UINT64_C(0), |
| UINT64_C(10), |
| UINT64_C(100), |
| UINT64_C(1000), |
| UINT64_C(10000), |
| UINT64_C(100000), |
| UINT64_C(1000000), |
| UINT64_C(10000000), |
| UINT64_C(100000000), |
| UINT64_C(1000000000), |
| UINT64_C(10000000000), |
| UINT64_C(100000000000), |
| UINT64_C(1000000000000), |
| UINT64_C(10000000000000), |
| UINT64_C(100000000000000), |
| UINT64_C(1000000000000000), |
| UINT64_C(10000000000000000), |
| UINT64_C(100000000000000000), |
| UINT64_C(1000000000000000000), |
| UINT64_C(10000000000000000000), |
| __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(10), |
| __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(100), |
| __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(1000), |
| __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(10000), |
| __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(100000), |
| __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(1000000), |
| __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(10000000), |
| __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(100000000), |
| __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(1000000000), |
| __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(10000000000), |
| __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(100000000000), |
| __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(1000000000000), |
| __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(10000000000000), |
| __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(100000000000000), |
| __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(1000000000000000), |
| __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(10000000000000000), |
| __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(100000000000000000), |
| __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(1000000000000000000), |
| __uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(10000000000000000000), |
| (__uint128_t(UINT64_C(10000000000000000000)) * UINT64_C(10000000000000000000)) * 10}; |
| # endif |
| |
| template <class _Tp> |
| const char __table<_Tp>::__digits_base_10[200] = { |
| // clang-format off |
| '0', '0', '0', '1', '0', '2', '0', '3', '0', '4', '0', '5', '0', '6', '0', '7', '0', '8', '0', '9', |
| '1', '0', '1', '1', '1', '2', '1', '3', '1', '4', '1', '5', '1', '6', '1', '7', '1', '8', '1', '9', |
| '2', '0', '2', '1', '2', '2', '2', '3', '2', '4', '2', '5', '2', '6', '2', '7', '2', '8', '2', '9', |
| '3', '0', '3', '1', '3', '2', '3', '3', '3', '4', '3', '5', '3', '6', '3', '7', '3', '8', '3', '9', |
| '4', '0', '4', '1', '4', '2', '4', '3', '4', '4', '4', '5', '4', '6', '4', '7', '4', '8', '4', '9', |
| '5', '0', '5', '1', '5', '2', '5', '3', '5', '4', '5', '5', '5', '6', '5', '7', '5', '8', '5', '9', |
| '6', '0', '6', '1', '6', '2', '6', '3', '6', '4', '6', '5', '6', '6', '6', '7', '6', '8', '6', '9', |
| '7', '0', '7', '1', '7', '2', '7', '3', '7', '4', '7', '5', '7', '6', '7', '7', '7', '8', '7', '9', |
| '8', '0', '8', '1', '8', '2', '8', '3', '8', '4', '8', '5', '8', '6', '8', '7', '8', '8', '8', '9', |
| '9', '0', '9', '1', '9', '2', '9', '3', '9', '4', '9', '5', '9', '6', '9', '7', '9', '8', '9', '9'}; |
| // clang-format on |
| |
| } // namespace __itoa |
| |
| #endif // _LIBCPP_CXX03_LANG |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP___CHARCONV_TABLES |
