更新:1、新增数据记录功能,将过程数据录入数据库;

2、增加输入点迹数据、凝聚后点迹数据记录;

Signed-off-by: waiwaylee <waiwaylee@foxmail.com>
This commit is contained in:
2026-09-30 09:02:28 +08:00
parent ff9b111d34
commit a4f32e4036
111 changed files with 321343 additions and 262 deletions
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#pragma once
#include <charconv>
#include "dragonbox_to_chars.h"
#include "fast_float.h"
#include "iguana/define.h"
#include "itoa.hpp"
namespace iguana {
template <typename T>
struct is_char_type
: std::disjunction<std::is_same<T, char>, std::is_same<T, wchar_t>,
std::is_same<T, char16_t>, std::is_same<T, char32_t>> {};
inline void *to_chars_float(...) {
throw std::runtime_error("not allowed to invoke");
return {};
}
template <typename T, typename Ret = decltype(to_chars_float(
std::declval<T>(), std::declval<char *>()))>
using return_of_tochars = std::conditional_t<std::is_same_v<Ret, char *>,
std::true_type, std::false_type>;
// here std::true_type is used as a type , any other type is also ok.
using has_to_chars_float = iguana::return_of_tochars<std::true_type>;
namespace detail {
// check_number==true: check if the string [first, last) is a legal number
template <bool check_number = true, typename U>
std::pair<const char *, std::errc> from_chars(const char *first,
const char *last, U &value) {
using T = std::decay_t<U>;
if constexpr (std::is_floating_point_v<T>) {
auto [p, ec] = fast_float::from_chars(first, last, value);
if constexpr (check_number) {
if (p != last || ec != std::errc{})
IGUANA_UNLIKELY { throw std::runtime_error("Failed to parse number"); }
}
return {p, ec};
}
else {
auto [p, ec] = std::from_chars(first, last, value);
if constexpr (check_number) {
if (p != last || ec != std::errc{})
IGUANA_UNLIKELY { throw std::runtime_error("Failed to parse number"); }
}
return {p, ec};
}
}
// not support uint8 for now
template <typename T>
char *to_chars(char *buffer, T value) noexcept {
using U = std::decay_t<T>;
if constexpr (std::is_floating_point_v<U>) {
if constexpr (has_to_chars_float::value) {
return static_cast<char *>(to_chars_float(value, buffer));
}
else {
return jkj::dragonbox::to_chars(value, buffer);
}
}
else if constexpr (std::is_signed_v<U> && (sizeof(U) >= 8)) {
return xtoa(value, buffer, 10, 1); // int64_t
}
else if constexpr (std::is_unsigned_v<U> && (sizeof(U) >= 8)) {
return xtoa(value, buffer, 10, 0); // uint64_t
}
else if constexpr (std::is_integral_v<U> && (sizeof(U) > 1)) {
return itoa_fwd(value, buffer); // only support more than 2 bytes intergal
}
else if constexpr (!is_char_type<U>::value) {
return itoa_fwd(static_cast<int>(value),
buffer); // only support more than 2 bytes intergal
}
else {
static_assert(!sizeof(U), "only support arithmetic type except char type");
}
}
} // namespace detail
} // namespace iguana
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// Copyright 2020-2022 Junekey Jeon
//
// The contents of this file may be used under the terms of
// the Apache License v2.0 with LLVM Exceptions.
//
// (See accompanying file LICENSE-Apache or copy at
// https://llvm.org/foundation/relicensing/LICENSE.txt)
//
// Alternatively, the contents of this file may be used under the terms of
// the Boost Software License, Version 1.0.
// (See accompanying file LICENSE-Boost or copy at
// https://www.boost.org/LICENSE_1_0.txt)
//
// Unless required by applicable law or agreed to in writing, this software
// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.
#ifndef JKJ_HEADER_DRAGONBOX_TO_CHARS
#define JKJ_HEADER_DRAGONBOX_TO_CHARS
#include "dragonbox.h"
#if defined(__GNUC__) || defined(__clang__)
#define JKJ_FORCEINLINE inline __attribute__((always_inline))
#elif defined(_MSC_VER)
#define JKJ_FORCEINLINE __forceinline
#else
#define JKJ_FORCEINLINE inline
#endif
namespace jkj::dragonbox {
namespace to_chars_detail {
template <class Float, class FloatTraits>
extern char *to_chars(typename FloatTraits::carrier_uint significand,
int exponent, char *buffer) noexcept;
// These "//"'s are to prevent clang-format to ruin this nice alignment.
// Thanks to reddit user u/mcmcc:
// https://www.reddit.com/r/cpp/comments/so3wx9/dragonbox_110_is_released_a_fast_floattostring/hw8z26r/?context=3
static constexpr char radix_100_table[] = {
'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' //
};
static constexpr char radix_100_head_table[] = {
'0', '.', '1', '.', '2', '.', '3', '.', '4', '.', //
'5', '.', '6', '.', '7', '.', '8', '.', '9', '.', //
'1', '.', '1', '.', '1', '.', '1', '.', '1', '.', //
'1', '.', '1', '.', '1', '.', '1', '.', '1', '.', //
'2', '.', '2', '.', '2', '.', '2', '.', '2', '.', //
'2', '.', '2', '.', '2', '.', '2', '.', '2', '.', //
'3', '.', '3', '.', '3', '.', '3', '.', '3', '.', //
'3', '.', '3', '.', '3', '.', '3', '.', '3', '.', //
'4', '.', '4', '.', '4', '.', '4', '.', '4', '.', //
'4', '.', '4', '.', '4', '.', '4', '.', '4', '.', //
'5', '.', '5', '.', '5', '.', '5', '.', '5', '.', //
'5', '.', '5', '.', '5', '.', '5', '.', '5', '.', //
'6', '.', '6', '.', '6', '.', '6', '.', '6', '.', //
'6', '.', '6', '.', '6', '.', '6', '.', '6', '.', //
'7', '.', '7', '.', '7', '.', '7', '.', '7', '.', //
'7', '.', '7', '.', '7', '.', '7', '.', '7', '.', //
'8', '.', '8', '.', '8', '.', '8', '.', '8', '.', //
'8', '.', '8', '.', '8', '.', '8', '.', '8', '.', //
'9', '.', '9', '.', '9', '.', '9', '.', '9', '.', //
'9', '.', '9', '.', '9', '.', '9', '.', '9', '.' //
};
// These digit generation routines are inspired by James Anhalt's itoa
// algorithm: https://github.com/jeaiii/itoa The main idea is for given n, find
// y such that floor(10^k * y / 2^32) = n holds, where k is an appropriate
// integer depending on the length of n. For example, if n = 1234567, we set k
// = 6. In this case, we have floor(y / 2^32) = 1, floor(10^2 * ((10^0 * y) mod
// 2^32) / 2^32) = 23, floor(10^2 * ((10^2 * y) mod 2^32) / 2^32) = 45, and
// floor(10^2 * ((10^4 * y) mod 2^32) / 2^32) = 67.
// See https://jk-jeon.github.io/posts/2022/02/jeaiii-algorithm/ for more
// explanation.
JKJ_FORCEINLINE static void print_9_digits(std::uint32_t s32, int &exponent,
char *&buffer) noexcept {
// -- IEEE-754 binary32
// Since we do not cut trailing zeros in advance, s32 must be of 6~9 digits
// unless the original input was subnormal.
// In particular, when it is of 9 digits it shouldn't have any trailing zeros.
// -- IEEE-754 binary64
// In this case, s32 must be of 7~9 digits unless the input is subnormal,
// and it shouldn't have any trailing zeros if it is of 9 digits.
if (s32 >= 1'0000'0000) {
// 9 digits.
// 1441151882 = ceil(2^57 / 1'0000'0000) + 1
auto prod = s32 * std::uint64_t(1441151882);
prod >>= 25;
std::memcpy(buffer, radix_100_head_table + std::uint32_t(prod >> 32) * 2,
2);
prod = std::uint32_t(prod) * std::uint64_t(100);
std::memcpy(buffer + 2, radix_100_table + std::uint32_t(prod >> 32) * 2, 2);
prod = std::uint32_t(prod) * std::uint64_t(100);
std::memcpy(buffer + 4, radix_100_table + std::uint32_t(prod >> 32) * 2, 2);
prod = std::uint32_t(prod) * std::uint64_t(100);
std::memcpy(buffer + 6, radix_100_table + std::uint32_t(prod >> 32) * 2, 2);
prod = std::uint32_t(prod) * std::uint64_t(100);
std::memcpy(buffer + 8, radix_100_table + std::uint32_t(prod >> 32) * 2, 2);
exponent += 8;
buffer += 10;
}
else if (s32 >= 100'0000) {
// 7 or 8 digits.
// 281474978 = ceil(2^48 / 100'0000) + 1
auto prod = s32 * std::uint64_t(281474978);
prod >>= 16;
auto two_digits = std::uint32_t(prod >> 32);
// If s32 is of 8 digits, increase the exponent by 7.
// Otherwise, increase it by 6.
exponent += (6 + unsigned(two_digits >= 10));
// Write the first digit and the decimal point.
std::memcpy(buffer, radix_100_head_table + two_digits * 2, 2);
// This third character may be overwritten later but we don't care.
buffer[2] = radix_100_table[two_digits * 2 + 1];
// Remaining 6 digits are all zero?
if (std::uint32_t(prod) <=
std::uint32_t((std::uint64_t(1) << 32) / 100'0000)) {
// The number of characters actually written is:
// 1, if only the first digit is nonzero, which means that either s32 is
// of 7 digits or it is of 8 digits but the second digit is zero, or 3,
// otherwise.
// Note that buffer[2] is never zero if s32 is of 7 digits, because the
// input is never zero.
buffer +=
(1 + (unsigned(two_digits >= 10) & unsigned(buffer[2] > '0')) * 2);
}
else {
// At least one of the remaining 6 digits are nonzero.
// After this adjustment, now the first destination becomes buffer + 2.
buffer += unsigned(two_digits >= 10);
// Obtain the next two digits.
prod = std::uint32_t(prod) * std::uint64_t(100);
two_digits = std::uint32_t(prod >> 32);
std::memcpy(buffer + 2, radix_100_table + two_digits * 2, 2);
// Remaining 4 digits are all zero?
if (std::uint32_t(prod) <=
std::uint32_t((std::uint64_t(1) << 32) / 1'0000)) {
buffer += (3 + unsigned(buffer[3] > '0'));
}
else {
// At least one of the remaining 4 digits are nonzero.
// Obtain the next two digits.
prod = std::uint32_t(prod) * std::uint64_t(100);
two_digits = std::uint32_t(prod >> 32);
std::memcpy(buffer + 4, radix_100_table + two_digits * 2, 2);
// Remaining 2 digits are all zero?
if (std::uint32_t(prod) <=
std::uint32_t((std::uint64_t(1) << 32) / 100)) {
buffer += (5 + unsigned(buffer[5] > '0'));
}
else {
// Obtain the last two digits.
prod = std::uint32_t(prod) * std::uint64_t(100);
two_digits = std::uint32_t(prod >> 32);
std::memcpy(buffer + 6, radix_100_table + two_digits * 2, 2);
buffer += (7 + unsigned(buffer[7] > '0'));
}
}
}
}
else if (s32 >= 1'0000) {
// 5 or 6 digits.
// 429497 = ceil(2^32 / 1'0000)
auto prod = s32 * std::uint64_t(429497);
auto two_digits = std::uint32_t(prod >> 32);
// If s32 is of 6 digits, increase the exponent by 5.
// Otherwise, increase it by 4.
exponent += (4 + unsigned(two_digits >= 10));
// Write the first digit and the decimal point.
std::memcpy(buffer, radix_100_head_table + two_digits * 2, 2);
// This third character may be overwritten later but we don't care.
buffer[2] = radix_100_table[two_digits * 2 + 1];
// Remaining 4 digits are all zero?
if (std::uint32_t(prod) <=
std::uint32_t((std::uint64_t(1) << 32) / 1'0000)) {
// The number of characters actually written is 1 or 3, similarly to the
// case of 7 or 8 digits.
buffer +=
(1 + (unsigned(two_digits >= 10) & unsigned(buffer[2] > '0')) * 2);
}
else {
// At least one of the remaining 4 digits are nonzero.
// After this adjustment, now the first destination becomes buffer + 2.
buffer += unsigned(two_digits >= 10);
// Obtain the next two digits.
prod = std::uint32_t(prod) * std::uint64_t(100);
two_digits = std::uint32_t(prod >> 32);
std::memcpy(buffer + 2, radix_100_table + two_digits * 2, 2);
// Remaining 2 digits are all zero?
if (std::uint32_t(prod) <=
std::uint32_t((std::uint64_t(1) << 32) / 100)) {
buffer += (3 + unsigned(buffer[3] > '0'));
}
else {
// Obtain the last two digits.
prod = std::uint32_t(prod) * std::uint64_t(100);
two_digits = std::uint32_t(prod >> 32);
std::memcpy(buffer + 4, radix_100_table + two_digits * 2, 2);
buffer += (5 + unsigned(buffer[5] > '0'));
}
}
}
else if (s32 >= 100) {
// 3 or 4 digits.
// 42949673 = ceil(2^32 / 100)
auto prod = s32 * std::uint64_t(42949673);
auto two_digits = std::uint32_t(prod >> 32);
// If s32 is of 4 digits, increase the exponent by 3.
// Otherwise, increase it by 2.
exponent += (2 + int(two_digits >= 10));
// Write the first digit and the decimal point.
std::memcpy(buffer, radix_100_head_table + two_digits * 2, 2);
// This third character may be overwritten later but we don't care.
buffer[2] = radix_100_table[two_digits * 2 + 1];
// Remaining 2 digits are all zero?
if (std::uint32_t(prod) <= std::uint32_t((std::uint64_t(1) << 32) / 100)) {
// The number of characters actually written is 1 or 3, similarly to the
// case of 7 or 8 digits.
buffer +=
(1 + (unsigned(two_digits >= 10) & unsigned(buffer[2] > '0')) * 2);
}
else {
// At least one of the remaining 2 digits are nonzero.
// After this adjustment, now the first destination becomes buffer + 2.
buffer += unsigned(two_digits >= 10);
// Obtain the last two digits.
prod = std::uint32_t(prod) * std::uint64_t(100);
two_digits = std::uint32_t(prod >> 32);
std::memcpy(buffer + 2, radix_100_table + two_digits * 2, 2);
buffer += (3 + unsigned(buffer[3] > '0'));
}
}
else {
// 1 or 2 digits.
// If s32 is of 2 digits, increase the exponent by 1.
exponent += int(s32 >= 10);
// Write the first digit and the decimal point.
std::memcpy(buffer, radix_100_head_table + s32 * 2, 2);
// This third character may be overwritten later but we don't care.
buffer[2] = radix_100_table[s32 * 2 + 1];
// The number of characters actually written is 1 or 3, similarly to the
// case of 7 or 8 digits.
buffer += (1 + (unsigned(s32 >= 10) & unsigned(buffer[2] > '0')) * 2);
}
}
template <>
inline char *to_chars<float, default_float_traits<float>>(
std::uint32_t s32, int exponent, char *buffer) noexcept {
// Print significand.
print_9_digits(s32, exponent, buffer);
// Print exponent and return
if (exponent < 0) {
std::memcpy(buffer, "E-", 2);
buffer += 2;
exponent = -exponent;
}
else {
buffer[0] = 'E';
buffer += 1;
}
if (exponent >= 10) {
std::memcpy(buffer, &radix_100_table[exponent * 2], 2);
buffer += 2;
}
else {
buffer[0] = char('0' + exponent);
buffer += 1;
}
return buffer;
}
template <>
inline char *to_chars<double, default_float_traits<double>>(
std::uint64_t const significand, int exponent, char *buffer) noexcept {
// Print significand by decomposing it into a 9-digit block and a 8-digit
// block.
std::uint32_t first_block, second_block;
bool no_second_block;
if (significand >= 1'0000'0000) {
first_block = std::uint32_t(significand / 1'0000'0000);
second_block = std::uint32_t(significand) - first_block * 1'0000'0000;
exponent += 8;
no_second_block = (second_block == 0);
}
else {
first_block = std::uint32_t(significand);
no_second_block = true;
}
if (no_second_block) {
print_9_digits(first_block, exponent, buffer);
}
else {
// We proceed similarly to print_9_digits(), but since we do not need to
// remove trailing zeros, the procedure is a bit simpler.
if (first_block >= 1'0000'0000) {
// The input is of 17 digits, thus there should be no trailing zero at
// all. The first block is of 9 digits. 1441151882 = ceil(2^57 /
// 1'0000'0000) + 1
auto prod = first_block * std::uint64_t(1441151882);
prod >>= 25;
std::memcpy(buffer, radix_100_head_table + std::uint32_t(prod >> 32) * 2,
2);
prod = std::uint32_t(prod) * std::uint64_t(100);
std::memcpy(buffer + 2, radix_100_table + std::uint32_t(prod >> 32) * 2,
2);
prod = std::uint32_t(prod) * std::uint64_t(100);
std::memcpy(buffer + 4, radix_100_table + std::uint32_t(prod >> 32) * 2,
2);
prod = std::uint32_t(prod) * std::uint64_t(100);
std::memcpy(buffer + 6, radix_100_table + std::uint32_t(prod >> 32) * 2,
2);
prod = std::uint32_t(prod) * std::uint64_t(100);
std::memcpy(buffer + 8, radix_100_table + std::uint32_t(prod >> 32) * 2,
2);
// The second block is of 8 digits.
// 281474978 = ceil(2^48 / 100'0000) + 1
prod = second_block * std::uint64_t(281474978);
prod >>= 16;
prod += 1;
std::memcpy(buffer + 10, radix_100_table + std::uint32_t(prod >> 32) * 2,
2);
prod = std::uint32_t(prod) * std::uint64_t(100);
std::memcpy(buffer + 12, radix_100_table + std::uint32_t(prod >> 32) * 2,
2);
prod = std::uint32_t(prod) * std::uint64_t(100);
std::memcpy(buffer + 14, radix_100_table + std::uint32_t(prod >> 32) * 2,
2);
prod = std::uint32_t(prod) * std::uint64_t(100);
std::memcpy(buffer + 16, radix_100_table + std::uint32_t(prod >> 32) * 2,
2);
exponent += 8;
buffer += 18;
}
else {
if (first_block >= 100'0000) {
// 7 or 8 digits.
// 281474978 = ceil(2^48 / 100'0000) + 1
auto prod = first_block * std::uint64_t(281474978);
prod >>= 16;
auto two_digits = std::uint32_t(prod >> 32);
std::memcpy(buffer, radix_100_head_table + two_digits * 2, 2);
buffer[2] = radix_100_table[two_digits * 2 + 1];
exponent += (6 + unsigned(two_digits >= 10));
buffer += unsigned(two_digits >= 10);
// Print remaining 6 digits.
prod = std::uint32_t(prod) * std::uint64_t(100);
std::memcpy(buffer + 2, radix_100_table + std::uint32_t(prod >> 32) * 2,
2);
prod = std::uint32_t(prod) * std::uint64_t(100);
std::memcpy(buffer + 4, radix_100_table + std::uint32_t(prod >> 32) * 2,
2);
prod = std::uint32_t(prod) * std::uint64_t(100);
std::memcpy(buffer + 6, radix_100_table + std::uint32_t(prod >> 32) * 2,
2);
buffer += 8;
}
else if (first_block >= 1'0000) {
// 5 or 6 digits.
// 429497 = ceil(2^32 / 1'0000)
auto prod = first_block * std::uint64_t(429497);
auto two_digits = std::uint32_t(prod >> 32);
std::memcpy(buffer, radix_100_head_table + two_digits * 2, 2);
buffer[2] = radix_100_table[two_digits * 2 + 1];
exponent += (4 + unsigned(two_digits >= 10));
buffer += unsigned(two_digits >= 10);
// Print remaining 4 digits.
prod = std::uint32_t(prod) * std::uint64_t(100);
std::memcpy(buffer + 2, radix_100_table + std::uint32_t(prod >> 32) * 2,
2);
prod = std::uint32_t(prod) * std::uint64_t(100);
std::memcpy(buffer + 4, radix_100_table + std::uint32_t(prod >> 32) * 2,
2);
buffer += 6;
}
else if (first_block >= 100) {
// 3 or 4 digits.
// 42949673 = ceil(2^32 / 100)
auto prod = first_block * std::uint64_t(42949673);
auto two_digits = std::uint32_t(prod >> 32);
std::memcpy(buffer, radix_100_head_table + two_digits * 2, 2);
buffer[2] = radix_100_table[two_digits * 2 + 1];
exponent += (2 + unsigned(two_digits >= 10));
buffer += unsigned(two_digits >= 10);
// Print remaining 2 digits.
prod = std::uint32_t(prod) * std::uint64_t(100);
std::memcpy(buffer + 2, radix_100_table + std::uint32_t(prod >> 32) * 2,
2);
buffer += 4;
}
else {
// 1 or 2 digits.
std::memcpy(buffer, radix_100_head_table + first_block * 2, 2);
buffer[2] = radix_100_table[first_block * 2 + 1];
exponent += unsigned(first_block >= 10);
buffer += (2 + unsigned(first_block >= 10));
}
// Next, print the second block.
// The second block is of 8 digits, but we may have trailing zeros.
// 281474978 = ceil(2^48 / 100'0000) + 1
auto prod = second_block * std::uint64_t(281474978);
prod >>= 16;
prod += 1;
auto two_digits = std::uint32_t(prod >> 32);
std::memcpy(buffer, radix_100_table + two_digits * 2, 2);
// Remaining 6 digits are all zero?
if (std::uint32_t(prod) <=
std::uint32_t((std::uint64_t(1) << 32) / 100'0000)) {
buffer += (1 + unsigned(buffer[1] > '0'));
}
else {
// Obtain the next two digits.
prod = std::uint32_t(prod) * std::uint64_t(100);
two_digits = std::uint32_t(prod >> 32);
std::memcpy(buffer + 2, radix_100_table + two_digits * 2, 2);
// Remaining 4 digits are all zero?
if (std::uint32_t(prod) <=
std::uint32_t((std::uint64_t(1) << 32) / 1'0000)) {
buffer += (3 + unsigned(buffer[3] > '0'));
}
else {
// Obtain the next two digits.
prod = std::uint32_t(prod) * std::uint64_t(100);
two_digits = std::uint32_t(prod >> 32);
std::memcpy(buffer + 4, radix_100_table + two_digits * 2, 2);
// Remaining 2 digits are all zero?
if (std::uint32_t(prod) <=
std::uint32_t((std::uint64_t(1) << 32) / 100)) {
buffer += (5 + unsigned(buffer[5] > '0'));
}
else {
// Obtain the last two digits.
prod = std::uint32_t(prod) * std::uint64_t(100);
two_digits = std::uint32_t(prod >> 32);
std::memcpy(buffer + 6, radix_100_table + two_digits * 2, 2);
buffer += (7 + unsigned(buffer[7] > '0'));
}
}
}
}
}
// Print exponent and return
if (exponent < 0) {
std::memcpy(buffer, "E-", 2);
buffer += 2;
exponent = -exponent;
}
else {
buffer[0] = 'E';
buffer += 1;
}
if (exponent >= 100) {
// d1 = exponent / 10; d2 = exponent % 10;
// 6554 = ceil(2^16 / 10)
auto prod = std::uint32_t(exponent) * std::uint32_t(6554);
auto d1 = prod >> 16;
prod = std::uint16_t(prod) * std::uint32_t(5); // * 10
auto d2 = prod >> 15; // >> 16
std::memcpy(buffer, &radix_100_table[d1 * 2], 2);
buffer[2] = char('0' + d2);
buffer += 3;
}
else if (exponent >= 10) {
std::memcpy(buffer, &radix_100_table[exponent * 2], 2);
buffer += 2;
}
else {
buffer[0] = char('0' + exponent);
buffer += 1;
}
return buffer;
}
// Avoid needless ABI overhead incurred by tag dispatch.
template <class PolicyHolder, class Float, class FloatTraits>
char *to_chars_n_impl(float_bits<Float, FloatTraits> br,
char *buffer) noexcept {
auto const exponent_bits = br.extract_exponent_bits();
auto const s = br.remove_exponent_bits(exponent_bits);
if (br.is_finite(exponent_bits)) {
if (s.is_negative()) {
*buffer = '-';
++buffer;
}
if (br.is_nonzero()) {
auto result = to_decimal<Float, FloatTraits>(
s, exponent_bits, policy::sign::ignore, policy::trailing_zero::ignore,
typename PolicyHolder::decimal_to_binary_rounding_policy{},
typename PolicyHolder::binary_to_decimal_rounding_policy{},
typename PolicyHolder::cache_policy{});
return to_chars_detail::to_chars<Float, FloatTraits>(
result.significand, result.exponent, buffer);
}
else {
std::memcpy(buffer, "0E0", 3);
return buffer + 3;
}
}
else {
if (s.has_all_zero_significand_bits()) {
if (s.is_negative()) {
*buffer = '-';
++buffer;
}
std::memcpy(buffer, "Infinity", 8);
return buffer + 8;
}
else {
std::memcpy(buffer, "NaN", 3);
return buffer + 3;
}
}
}
} // namespace to_chars_detail
// Returns the next-to-end position
template <class Float, class FloatTraits = default_float_traits<Float>,
class... Policies>
char *to_chars_n(Float x, char *buffer, Policies... policies) noexcept {
using namespace jkj::dragonbox::detail::policy_impl;
using policy_holder = decltype(make_policy_holder(
base_default_pair_list<
base_default_pair<decimal_to_binary_rounding::base,
decimal_to_binary_rounding::nearest_to_even>,
base_default_pair<binary_to_decimal_rounding::base,
binary_to_decimal_rounding::to_even>,
base_default_pair<cache::base, cache::full>>{},
policies...));
return to_chars_detail::to_chars_n_impl<policy_holder>(
float_bits<Float, FloatTraits>(x), buffer);
}
// Null-terminate and bypass the return value of fp_to_chars_n
template <class Float, class FloatTraits = default_float_traits<Float>,
class... Policies>
char *to_chars(Float x, char *buffer, Policies... policies) noexcept {
auto ptr = to_chars_n<Float, FloatTraits>(x, buffer, policies...);
*ptr = '\0';
return ptr;
}
// Maximum required buffer size (excluding null-terminator)
template <class FloatFormat>
inline constexpr std::size_t max_output_string_length =
std::is_same_v<FloatFormat, ieee754_binary32>
?
// sign(1) + significand(9) + decimal_point(1) + exp_marker(1) +
// exp_sign(1) + exp(2)
(1 + 9 + 1 + 1 + 1 + 2)
:
// format == ieee754_format::binary64
// sign(1) + significand(17) + decimal_point(1) + exp_marker(1) +
// exp_sign(1) + exp(3)
(1 + 17 + 1 + 1 + 1 + 3);
} // namespace jkj::dragonbox
#endif
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//=== itoa.h - Fast integer to ascii conversion --*- C++ -*-//
//
// The MIT License (MIT)
// Copyright (c) 2016 Arturo Martin-de-Nicolas
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// 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 AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//===----------------------------------------------------------------------===//
#ifndef DEC_ITOA_IMPL_H
#define DEC_ITOA_IMPL_H
#include <array>
#include <cstddef>
#include <cstdint>
#include <cstring> // memcpy
#include <type_traits>
namespace dec_ {
// Using a lookup table to convert binary numbers from 0 to 99
// into ascii characters as described by Andrei Alexandrescu in
// https://www.facebook.com/notes/facebook-engineering/
// three-optimization-tips-for-c/10151361643253920/
template <typename T, size_t N, typename Gen, size_t... Is>
constexpr auto generate_array(Gen&& item, std::index_sequence<Is...>) {
return std::array<T, N>{{item(Is)...}};
}
const std::array<char, 200> digits = generate_array<char, 200>(
[](size_t i) {
return char('0' + ((i % 2) ? ((i / 2) % 10) : ((i / 2) / 10)));
},
std::make_index_sequence<200>{});
// extern const std::array<char,200> digits;
static inline uint16_t const& dd(uint8_t u) {
return reinterpret_cast<uint16_t const*>(digits.data())[u];
}
template <typename T>
static constexpr T pow10(size_t x) {
return x ? 10 * pow10<T>(x - 1) : 1;
}
// Division by a power of 10 is implemented using a multiplicative inverse.
// This strength reduction is also done by optimizing compilers, but
// presently the fastest results are produced by using the values
// for the multiplication and the shift as given by the algorithm
// described by Agner Fog in "Optimizing Subroutines in Assembly Language"
//
// http://www.agner.org/optimize/optimizing_assembly.pdf
//
// "Integer division by a constant (all processors)
// A floating point number can be divided by a constant by multiplying
// with the reciprocal. If we want to do the same with integers, we have
// to scale the reciprocal by 2n and then shift the product to the right
// by n. There are various algorithms for finding a suitable value of n
// and compensating for rounding errors. The algorithm described below
// was invented by Terje Mathisen, Norway, and not published elsewhere."
// using uint128_t = unsigned __int128;
template <typename UInt, bool A, UInt M, unsigned S>
struct MulInv {
using type = UInt;
static constexpr bool a{A};
static constexpr UInt m{M};
static constexpr unsigned s{S};
};
template <int, int, class...>
struct UT;
template <int N, class T, class... Ts>
struct UT<N, N, T, Ts...> {
using U = T;
};
template <int N, int M, class T, class... Ts>
struct UT<N, M, T, Ts...> {
using U = typename UT<N, 2 * M, Ts...>::U;
};
template <int N>
using MI = typename UT<N, 1, MulInv<uint8_t, 0, 205U, 11>,
MulInv<uint16_t, 1, 41943U, 22>,
MulInv<uint32_t, 0, 3518437209U, 45>,
MulInv<uint64_t, 0, 12379400392853802749U, 90>>::U;
template <int N>
using U = typename MI<N>::type;
// struct QR holds the result of dividing an unsigned N-byte variable
// by 10^N resulting in
template <size_t N>
struct QR {
U<N> q; // quotient with fewer than 2*N decimal digits
U<N / 2> r; // remainder with at most N decimal digits
};
template <size_t N>
QR<N> static inline split(U<N> u) {
constexpr MI<N> mi{};
U<N> q = (mi.m * (U<2 * N>(u) + mi.a)) >> mi.s;
return {q, U<N / 2>(u - q * pow10<U<N / 2>>(N))};
}
enum Direction { Fwd, Rev };
template <Direction D>
struct convert {
//===----------------------------------------------------------===//
// output the digits in either a forward or reverse direction
// use memcpy so compiler handles alignment on target architecture.
// Typically generates one store to memory with an optimizing
// compiler for target architecture that supports unaligned access.
//===----------------------------------------------------------===//
template <typename T>
static inline char* out(char* p, T&& obj) {
if (D == Rev)
p -= sizeof(T);
memcpy(p, reinterpret_cast<const void*>(&obj), sizeof(T));
if (D == Fwd)
p += sizeof(T);
return p;
}
//===----------------------------------------------------------===//
// head: find most significant digit, skip leading zeros
//===----------------------------------------------------------===//
// "x" contains quotient and remainder after division by 10^N
// quotient is less than 10^N
template <size_t N>
static inline char* head(char* p, QR<N> x) {
return (D == Fwd ? (tail(head(p, U<N / 2>(x.q)), x.r))
: (head(tail(p, x.r), U<N / 2>(x.q))));
}
// "u" is less than 10^2*N
template <typename UInt, size_t N = sizeof(UInt)>
static inline char* head(char* p, UInt u) {
return (u < pow10<U<N>>(N) ? (head(p, U<N / 2>(u)))
: (head<N>(p, split<N>(u))));
}
// recursion base case, selected when "u" is one byte
static inline char* head(char* p, U<1> u) {
return (u < 10 ? (out<char>(p, '0' + u)) : (out(p, dd(u))));
}
//===----------------------------------------------------------===//
// tail: produce all digits including leading zeros
//===----------------------------------------------------------===//
// recursive step, "u" is less than 10^2*N
template <typename UInt, size_t N = sizeof(UInt)>
static inline char* tail(char* p, UInt u) {
QR<N> x = split<N>(u);
return (D == Fwd ? (tail(tail(p, U<N / 2>(x.q)), x.r))
: (tail(tail(p, x.r), U<N / 2>(x.q))));
}
// recursion base case, selected when "u" is one byte
static inline char* tail(char* p, U<1> u) { return out(p, dd(u)); }
//===----------------------------------------------------------===//
// large values are >= 10^2*N
// where x contains quotient and remainder after division by 10^N
//===----------------------------------------------------------===//
template <size_t N>
static inline char* large(char* p, QR<N> x) {
QR<N> y = split<N>(x.q);
return (D == Fwd ? (tail(tail(head(p, U<N / 2>(y.q)), y.r), x.r))
: (head(tail(tail(p, x.r), y.r), U<N / 2>(y.q))));
}
//===----------------------------------------------------------===//
// handle values of "u" that might be >= 10^2*N
// where N is the size of "u" in bytes
//===----------------------------------------------------------===//
template <typename UInt, size_t N = sizeof(UInt)>
static inline char* itoa(char* p, UInt u) {
if (u < pow10<U<N>>(N))
return head(p, U<N / 2>(u));
QR<N> x = split<N>(u);
return (u < pow10<U<N>>(2 * N) ? (head<N>(p, x)) : (large<N>(p, x)));
}
// selected when "u" is one byte
static inline char* itoa(char* p, U<1> u) {
if (u < 10)
return out<char>(p, '0' + u);
if (u < 100)
return out(p, dd(u));
return (D == Fwd ? (out(out<char>(p, '0' + u / 100), dd(u % 100)))
: (out<char>(out(p, dd(u % 100)), '0' + u / 100)));
}
//===----------------------------------------------------------===//
// handle unsigned and signed integral operands
//===----------------------------------------------------------===//
// itoa: handle unsigned integral operands (selected by SFINAE)
template <typename U, std::enable_if_t<!std::is_signed<U>::value &&
std::is_integral<U>::value>* = nullptr>
static inline char* itoa(U u, char* p) {
return convert<D>::template itoa<>(p, u);
}
// itoa: handle signed integral operands (selected by SFINAE)
template <typename I, size_t N = sizeof(I),
std::enable_if_t<std::is_signed<I>::value &&
std::is_integral<I>::value>* = nullptr>
static inline char* itoa(I i, char* p) {
// Need "mask" to be filled with a copy of the sign bit.
// If "i" is a negative value, then the result of "operator >>"
// is implementation-defined, though usually it is an arithmetic
// right shift that replicates the sign bit.
// Use a conditional expression to be portable,
// a good optimizing compiler generates an arithmetic right shift
// and avoids the conditional branch.
U<N> mask = i < 0 ? ~U<N>(0) : 0;
// Now get the absolute value of "i" and cast to unsigned type U<N>.
// Cannot use std::abs() because the result is undefined
// in 2's complement systems for the most-negative value.
// Want to avoid conditional branch for performance reasons since
// CPU branch prediction will be ineffective when negative values
// occur randomly.
// Let "u" be "i" cast to unsigned type U<N>.
// Subtract "u" from 2*u if "i" is positive or 0 if "i" is negative.
// This yields the absolute value with the desired type without
// using a conditional branch and without invoking undefined or
// implementation defined behavior:
U<N> u = ((2 * U<N>(i)) & ~mask) - U<N>(i);
// Unconditionally store a minus sign when producing digits
// in a forward direction and increment the pointer only if
// the value is in fact negative.
// This avoids a conditional branch and is safe because we will
// always produce at least one digit and it will overwrite the
// minus sign when the value is not negative.
if (D == Fwd) {
*p = '-';
p += (mask & 1);
}
p = convert<D>::template itoa<>(p, u);
if (D == Rev && mask)
*--p = '-';
return p;
}
};
} // namespace dec_
// Programming interface: itoa_fwd, itoa_rev
template <typename I>
char* itoa_fwd(I i, char* p) {
return dec_::convert<dec_::Fwd>::itoa(i, p);
}
inline char* xtoa(long long sval, char* str, int radix, int signedp) {
unsigned long long uval;
unsigned int uradix = radix;
char* sp = str;
char* sp2;
char* sp3;
/* If signed, store sign at start of buffer for negative base-10 values */
if (signedp && (10 == uradix) && (0 > sval)) {
*sp++ = '-';
uval = -sval;
}
else {
uval = sval;
}
sp2 = sp;
do {
unsigned int rem = uval % uradix;
uval /= uradix;
if (10 > rem) {
*sp++ = '0' + (char)rem;
}
else {
*sp++ = 'A' + (char)rem - 10;
}
} while (0 < uval);
/* Mark end of string */
sp3 = sp;
*sp-- = 0;
/* Reverse string contents (excluding sign) in place */
while (sp2 < sp) {
char tmp = *sp2;
*sp2++ = *sp;
*sp-- = tmp;
}
return sp3;
}
template <typename I>
char* itoa_rev(I i, char* p) {
return dec_::convert<dec_::Rev>::itoa(i, p);
}
#endif // DEC_ITOA_IMPL_H
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#pragma once
#include <cstdint>
#include <type_traits>
namespace iguana {
struct sint32_t {
using value_type = int32_t;
int32_t val;
bool operator==(const sint32_t& other) const { return val == other.val; }
};
inline bool operator==(sint32_t value1, int32_t value2) {
return value1.val == value2;
}
// for key in std::map
inline bool operator<(const sint32_t& lhs, const sint32_t& rhs) {
return lhs.val < rhs.val;
}
struct sint64_t {
using value_type = int64_t;
int64_t val;
bool operator==(const sint64_t& other) const { return val == other.val; }
};
inline bool operator==(sint64_t value1, int64_t value2) {
return value1.val == value2;
}
inline bool operator<(const sint64_t& lhs, const sint64_t& rhs) {
return lhs.val < rhs.val;
}
struct fixed32_t {
using value_type = uint32_t;
uint32_t val;
bool operator==(const fixed32_t& other) const { return val == other.val; }
};
inline bool operator==(fixed32_t value1, uint32_t value2) {
return value1.val == value2;
}
inline bool operator<(const fixed32_t& lhs, const fixed32_t& rhs) {
return lhs.val < rhs.val;
}
struct fixed64_t {
using value_type = uint64_t;
uint64_t val;
bool operator==(const fixed64_t& other) const { return val == other.val; }
};
inline bool operator==(fixed64_t value1, uint64_t value2) {
return value1.val == value2;
}
inline bool operator<(const fixed64_t& lhs, const fixed64_t& rhs) {
return lhs.val < rhs.val;
}
struct sfixed32_t {
using value_type = int32_t;
int32_t val;
bool operator==(const sfixed32_t& other) const { return val == other.val; }
};
inline bool operator==(sfixed32_t value1, int32_t value2) {
return value1.val == value2;
}
inline bool operator<(const sfixed32_t& lhs, const sfixed32_t& rhs) {
return lhs.val < rhs.val;
}
struct sfixed64_t {
using value_type = int64_t;
int64_t val;
bool operator==(const sfixed64_t& other) const { return val == other.val; }
};
inline bool operator==(sfixed64_t value1, int64_t value2) {
return value1.val == value2;
}
inline bool operator<(const sfixed64_t& lhs, const sfixed64_t& rhs) {
return lhs.val < rhs.val;
}
template <typename Type, typename T = std::decay_t<Type>>
constexpr bool is_pb_type_v =
std::is_same_v<sint32_t, T> || std::is_same_v<sint64_t, T> ||
std::is_same_v<fixed32_t, T> || std::is_same_v<fixed64_t, T> ||
std::is_same_v<sfixed32_t, T> || std::is_same_v<sfixed64_t, T>;
} // namespace iguana
// for key in std::unordered_map
namespace std {
template <>
struct hash<iguana::sint32_t> {
size_t operator()(const iguana::sint32_t& x) const noexcept {
return std::hash<int32_t>()(x.val);
}
};
template <>
struct hash<iguana::sint64_t> {
size_t operator()(const iguana::sint64_t& x) const noexcept {
return std::hash<int64_t>()(x.val);
}
};
template <>
struct hash<iguana::fixed32_t> {
size_t operator()(const iguana::fixed32_t& x) const noexcept {
return std::hash<uint32_t>()(x.val);
}
};
template <>
struct hash<iguana::fixed64_t> {
size_t operator()(const iguana::fixed64_t& x) const noexcept {
return std::hash<uint64_t>()(x.val);
}
};
template <>
struct hash<iguana::sfixed32_t> {
size_t operator()(const iguana::sfixed32_t& x) const noexcept {
return std::hash<int32_t>()(x.val);
}
};
template <>
struct hash<iguana::sfixed64_t> {
size_t operator()(const iguana::sfixed64_t& x) const noexcept {
return std::hash<int64_t>()(x.val);
}
};
} // namespace std
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#pragma once
#include <cstddef>
#include <string>
#include <utility>
#include <vector>
namespace iguana::detail {
#if __cpp_lib_string_resize_and_overwrite >= 202110L
template <typename ch>
inline void resize(std::basic_string<ch> &str, std::size_t sz) {
str.resize_and_overwrite(sz, [sz](ch *, std::size_t) {
return sz;
});
}
#elif (defined(_MSC_VER) && _MSC_VER <= 1920)
// old msvc don't support visit private, discard it.
#else
template <typename Function, Function func_ptr>
class string_thief {
public:
friend void string_set_length_hacker(std::string &self, std::size_t sz) {
#if defined(_MSVC_STL_VERSION)
(self.*func_ptr)._Myval2._Mysize = sz;
#else
#if defined(_LIBCPP_VERSION)
(self.*func_ptr)(sz);
#else
#if (_GLIBCXX_USE_CXX11_ABI == 0) && defined(__GLIBCXX__)
(self.*func_ptr)()->_M_set_length_and_sharable(sz);
#else
#if defined(__GLIBCXX__)
(self.*func_ptr)(sz);
#endif
#endif
#endif
#endif
}
};
#if defined(__GLIBCXX__) // libstdc++
#if (_GLIBCXX_USE_CXX11_ABI == 0)
template class string_thief<decltype(&std::string::_M_rep),
&std::string::_M_rep>;
#else
template class string_thief<decltype(&std::string::_M_set_length),
&std::string::_M_set_length>;
#endif
#elif defined(_LIBCPP_VERSION)
template class string_thief<decltype(&std::string::__set_size),
&std::string::__set_size>;
#elif defined(_MSVC_STL_VERSION)
template class string_thief<decltype(&std::string::_Mypair),
&std::string::_Mypair>;
#endif
void string_set_length_hacker(std::string &, std::size_t);
template <typename ch>
inline void resize(std::basic_string<ch> &raw_str, std::size_t sz) {
std::string &str = *reinterpret_cast<std::string *>(&raw_str);
#if defined(__GLIBCXX__) || defined(_LIBCPP_VERSION) || \
defined(_MSVC_STL_VERSION)
if (sz > str.capacity()) {
str.reserve(sz);
}
string_set_length_hacker(str, sz);
str[sz] = '\0';
#else
raw_str.resize(sz);
#endif
}
#endif
#if (defined(_MSC_VER) && _MSC_VER <= 1920)
#else
void vector_set_length_hacker(std::vector<char> &self, std::size_t sz);
template <typename Function, Function func_ptr>
class vector_thief {
public:
friend void vector_set_length_hacker(std::vector<char> &self,
std::size_t sz) {
#if defined(_MSVC_STL_VERSION)
(self.*func_ptr)._Myval2._Mylast = self.data() + sz;
#else
#if defined(_LIBCPP_VERSION)
#if _LIBCPP_VERSION < 14000
((*(std::__vector_base<char, std::allocator<char> > *)(&self)).*func_ptr) =
self.data() + sz;
#else
(self.*func_ptr) = self.data() + sz;
#endif
#else
#if defined(__GLIBCXX__)
((*(std::_Vector_base<char, std::allocator<char> > *)(&self)).*func_ptr)
._M_finish = self.data() + sz;
#endif
#endif
#endif
}
};
#if defined(__GLIBCXX__) // libstdc++
template class vector_thief<decltype(&std::vector<char>::_M_impl),
&std::vector<char>::_M_impl>;
#elif defined(_LIBCPP_VERSION)
template class vector_thief<decltype(&std::vector<char>::__end_),
&std::vector<char>::__end_>;
#elif defined(_MSVC_STL_VERSION)
template class vector_thief<decltype(&std::vector<char>::_Mypair),
&std::vector<char>::_Mypair>;
#endif
template <typename ch>
inline void resize(std::vector<ch> &raw_vec, std::size_t sz) {
#if defined(__GLIBCXX__) || \
(defined(_LIBCPP_VERSION) && defined(_LIBCPP_HAS_NO_ASAN)) || \
defined(_MSVC_STL_VERSION)
std::vector<char> &vec = *reinterpret_cast<std::vector<char> *>(&raw_vec);
vec.reserve(sz);
vector_set_length_hacker(vec, sz);
#else
raw_vec.resize(sz);
#endif
}
#endif
}; // namespace iguana::detail
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#pragma once
#include <string>
#if __has_include(<memory_resource>)
#include <memory_resource>
#endif
namespace iguana {
#ifdef IGUANA_ENABLE_PMR
#if __has_include(<memory_resource>)
inline char iguana_buf[2048];
inline std::pmr::monotonic_buffer_resource iguana_resource(iguana_buf, 2048);
using string_stream = std::pmr::string;
#endif
#else
using string_stream = std::string;
#endif
} // namespace iguana
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//
// Created by QY on 2017-01-05.
//
#ifndef SERIALIZE_TRAITS_HPP
#define SERIALIZE_TRAITS_HPP
#include <deque>
#include <list>
#include <map>
#include <queue>
#include <type_traits>
#include <unordered_map>
#include <variant>
#include <vector>
#if __cplusplus > 201703L
#if __has_include(<span>)
#include <span>
#endif
#endif
#include "iguana/define.h"
namespace iguana {
template <class T>
struct is_signed_intergral_like
: std::integral_constant<bool, (std::is_integral<T>::value) &&
std::is_signed<T>::value> {};
template <class T>
struct is_unsigned_intergral_like
: std::integral_constant<bool, (std::is_integral<T>::value) &&
std::is_unsigned<T>::value> {};
template <template <typename...> class U, typename T>
struct is_template_instant_of : std::false_type {};
template <template <typename...> class U, typename... args>
struct is_template_instant_of<U, U<args...>> : std::true_type {};
template <typename T>
struct is_stdstring : is_template_instant_of<std::basic_string, T> {};
template <typename T>
struct is_tuple : is_template_instant_of<std::tuple, T> {};
#if __cplusplus > 201703L
#if __has_include(<span>)
template <typename>
struct is_span : std::false_type {};
template <typename T, size_t Extent>
struct is_span<std::span<T, Extent>> : std::true_type {};
#endif
#endif
template <class T>
struct is_sequence_container
: std::integral_constant<
bool, is_template_instant_of<std::deque, T>::value ||
is_template_instant_of<std::list, T>::value ||
is_template_instant_of<std::vector, T>::value ||
is_template_instant_of<std::queue, T>::value> {};
template <class T>
struct is_associat_container
: std::integral_constant<
bool, is_template_instant_of<std::map, T>::value ||
is_template_instant_of<std::unordered_map, T>::value> {};
template <class T>
struct is_emplace_back_able
: std::integral_constant<
bool, is_template_instant_of<std::deque, T>::value ||
is_template_instant_of<std::list, T>::value ||
is_template_instant_of<std::vector, T>::value> {};
template <typename T, typename Tuple>
struct has_type;
template <typename T, typename... Us>
struct has_type<T, std::tuple<Us...>>
: std::disjunction<std::is_same<T, Us>...> {};
template <class T>
struct member_tratis {};
template <class T, class Owner>
struct member_tratis<T Owner::*> {
using owner_type = Owner;
using value_type = T;
};
template <typename T>
inline constexpr bool is_int64_v =
std::is_same_v<T, int64_t> || std::is_same_v<T, uint64_t>;
template <typename T>
struct is_variant : std::false_type {};
template <typename... T>
struct is_variant<std::variant<T...>> : std::true_type {};
template <class T>
struct member_traits {
using value_type = T;
};
template <class T, class Owner>
struct member_traits<T Owner::*> {
using owner_type = Owner;
using value_type = T;
};
template <class T>
using member_value_type_t = typename member_traits<T>::value_type;
template <typename T, std::size_t I, typename = void>
struct variant_type_at {
using type = T;
};
template <typename T, std::size_t I>
struct variant_type_at<T, I, std::enable_if_t<is_variant<T>::value>> {
using type = std::variant_alternative_t<I, T>;
};
template <typename T, std::size_t I>
using variant_type_at_t =
typename variant_type_at<typename member_traits<T>::value_type, I>::type;
/// concepts
template <typename Type>
constexpr bool is_char_v =
std::is_same_v<Type, signed char> || std::is_same_v<Type, char> ||
std::is_same_v<Type, unsigned char> || std::is_same_v<Type, wchar_t> ||
std::is_same_v<Type, char16_t> || std::is_same_v<Type, char32_t>
#ifdef __cpp_lib_char8_t
|| std::is_same_v<Type, char8_t>
#endif
;
#if __cplusplus >= 202002L
template <typename Type>
concept is_container_v = requires(Type container) {
typename std::remove_cvref_t<Type>::value_type;
container.size();
container.begin();
container.end();
};
template <typename Type>
concept is_resizable_char_container_v = requires(Type container) {
typename std::remove_cvref_t<Type>::value_type;
container.size();
container.begin();
container.end();
requires is_char_v<typename std::remove_cvref_t<Type>::value_type>;
container.resize(std::size_t{});
};
template <typename T>
concept char_writer = requires(T t) {
t.write((const char *)nullptr, std::size_t{});
};
template <typename T>
concept char_reader = requires(T t) {
t.read((char *)nullptr, std::size_t{});
};
#else
template <typename T, typename = void>
struct container_impl : std::false_type {};
template <typename T>
struct container_impl<T,
std::void_t<typename std::remove_cvref_t<T>::value_type,
decltype(std::declval<T>().size()),
decltype(std::declval<T>().begin()),
decltype(std::declval<T>().end())>>
: std::true_type {};
template <typename T>
constexpr bool is_container_v = container_impl<T>::value;
template <typename T, typename = void>
struct resizable_char_container_impl : std::false_type {};
template <typename T>
struct resizable_char_container_impl<
T, std::void_t<typename std::remove_cvref_t<T>::value_type,
decltype(std::declval<T>().size()),
decltype(std::declval<T>().begin()),
decltype(std::declval<T>().end()),
std::enable_if_t<
is_char_v<typename std::remove_cvref_t<T>::value_type>>,
decltype(std::declval<T>().resize(std::size_t{}))>>
: std::true_type {};
template <typename T>
constexpr bool is_resizable_char_container_v =
resizable_char_container_impl<T>::value;
template <typename T, typename = void>
struct char_writer_impl : std::false_type {};
template <typename T>
struct char_writer_impl<T, std::void_t<decltype(std::declval<T>().write(
(const char *)nullptr, std::size_t{}))>>
: std::true_type {};
template <typename T>
constexpr bool char_writer = char_writer_impl<T>::value;
template <typename T, typename = void>
struct char_reader_impl : std::false_type {};
template <typename T>
struct char_reader_impl<T, std::void_t<decltype(std::declval<T>().read(
(char *)nullptr, std::size_t{}))>>
: std::true_type {};
template <typename T>
constexpr bool char_reader = char_reader_impl<T>::value;
#endif
} // namespace iguana
#endif // SERIALIZE_TRAITS_HPP
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#pragma once
#include <cassert>
#include <stdexcept>
#include "iguana/define.h"
namespace iguana {
// https://github.com/Tencent/rapidjson/blob/master/include/rapidjson/reader.h
template <typename Ch = char, typename It>
inline unsigned parse_unicode_hex4(It &&it) {
unsigned codepoint = 0;
for (int i = 0; i < 4; i++) {
Ch c = *it;
codepoint <<= 4;
codepoint += static_cast<unsigned>(c);
if (c >= '0' && c <= '9')
codepoint -= '0';
else if (c >= 'A' && c <= 'F')
codepoint -= 'A' - 10;
else if (c >= 'a' && c <= 'f')
codepoint -= 'a' - 10;
else {
throw std::runtime_error("Invalid Unicode Escape Hex");
}
++it;
}
return codepoint;
}
// https://github.com/Tencent/rapidjson/blob/master/include/rapidjson/encodings.h
template <typename Ch = char, typename OutputStream>
inline void encode_utf8(OutputStream &os, unsigned codepoint) {
if (codepoint > 0x10FFFF)
IGUANA_UNLIKELY {
throw std::runtime_error("Invalid unicode codepoint:" +
std::to_string(codepoint));
}
if (codepoint <= 0x7F)
os.push_back(static_cast<Ch>(codepoint & 0xFF));
else if (codepoint <= 0x7FF) {
os.push_back(static_cast<Ch>(0xC0 | ((codepoint >> 6) & 0xFF)));
os.push_back(static_cast<Ch>(0x80 | ((codepoint & 0x3F))));
}
else if (codepoint <= 0xFFFF) {
os.push_back(static_cast<Ch>(0xE0 | ((codepoint >> 12) & 0xFF)));
os.push_back(static_cast<Ch>(0x80 | ((codepoint >> 6) & 0x3F)));
os.push_back(static_cast<Ch>(0x80 | (codepoint & 0x3F)));
}
else {
os.push_back(static_cast<Ch>(0xF0 | ((codepoint >> 18) & 0xFF)));
os.push_back(static_cast<Ch>(0x80 | ((codepoint >> 12) & 0x3F)));
os.push_back(static_cast<Ch>(0x80 | ((codepoint >> 6) & 0x3F)));
os.push_back(static_cast<Ch>(0x80 | (codepoint & 0x3F)));
}
}
// https://github.com/Tencent/rapidjson/blob/master/include/rapidjson/encodings.h
static inline unsigned char GetRange(unsigned char c) {
static const unsigned char type[] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0x10, 0x10, 0x10, 0x10,
0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10,
0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40,
0x40, 0x40, 0x40, 0x40, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 10, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 3, 3,
11, 6, 6, 6, 5, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8,
};
return type[c];
}
// https://github.com/Tencent/rapidjson/blob/master/include/rapidjson/encodings.h
template <typename Ch = char, typename It>
inline bool decode_utf8(It &&it, unsigned &codepoint) {
auto c = *(it++);
bool result = true;
auto copy = [&]() IGUANA__INLINE_LAMBDA {
c = *(it++);
codepoint = (codepoint << 6) | (static_cast<unsigned char>(c) & 0x3Fu);
};
auto trans = [&](unsigned mask) IGUANA__INLINE_LAMBDA {
result &= ((GetRange(static_cast<unsigned char>(c)) & mask) != 0);
};
auto tail = [&]() IGUANA__INLINE_LAMBDA {
copy();
trans(0x70);
};
if (!(c & 0x80)) {
codepoint = static_cast<unsigned char>(c);
return true;
}
unsigned char type = GetRange(static_cast<unsigned char>(c));
if (type >= 32) {
codepoint = 0;
}
else {
codepoint = (0xFFu >> type) & static_cast<unsigned char>(c);
}
switch (type) {
case 2:
tail();
return result;
case 3:
tail();
tail();
return result;
case 4:
copy();
trans(0x50);
tail();
return result;
case 5:
copy();
trans(0x10);
tail();
tail();
return result;
case 6:
tail();
tail();
tail();
return result;
case 10:
copy();
trans(0x20);
tail();
return result;
case 11:
copy();
trans(0x60);
tail();
tail();
return result;
default:
return false;
}
}
} // namespace iguana