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update nlohmann::json to v3.11.1

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Green Sky
2022-08-02 14:28:39 +02:00
parent aa81118c40
commit 95b9a17af4
47 changed files with 8129 additions and 12993 deletions
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325
external/json/include/nlohmann/detail/output/binary_writer.hpp vendored
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@ -1,22 +1,33 @@
// __ _____ _____ _____
// __| | __| | | | JSON for Modern C++
// | | |__ | | | | | | version 3.11.1
// |_____|_____|_____|_|___| https://github.com/nlohmann/json
//
// SPDX-FileCopyrightText: 2013-2022 Niels Lohmann <https://nlohmann.me>
// SPDX-License-Identifier: MIT
#pragma once
#include <algorithm> // reverse
#include <array> // array
#include <map> // map
#include <cmath> // isnan, isinf
#include <cstdint> // uint8_t, uint16_t, uint32_t, uint64_t
#include <cstring> // memcpy
#include <limits> // numeric_limits
#include <string> // string
#include <utility> // move
#include <vector> // vector
#include <nlohmann/detail/input/binary_reader.hpp>
#include <nlohmann/detail/macro_scope.hpp>
#include <nlohmann/detail/output/output_adapters.hpp>
#include <nlohmann/detail/string_concat.hpp>
namespace nlohmann
{
NLOHMANN_JSON_NAMESPACE_BEGIN
namespace detail
{
///////////////////
// binary writer //
///////////////////
@ -67,7 +78,7 @@ class binary_writer
case value_t::discarded:
default:
{
JSON_THROW(type_error::create(317, "to serialize to BSON, top-level type must be object, but is " + std::string(j.type_name()), j));
JSON_THROW(type_error::create(317, concat("to serialize to BSON, top-level type must be object, but is ", j.type_name()), &j));
}
}
}
@ -723,9 +734,11 @@ class binary_writer
@param[in] use_count whether to use '#' prefixes (optimized format)
@param[in] use_type whether to use '$' prefixes (optimized format)
@param[in] add_prefix whether prefixes need to be used for this value
@param[in] use_bjdata whether write in BJData format, default is false
*/
void write_ubjson(const BasicJsonType& j, const bool use_count,
const bool use_type, const bool add_prefix = true)
const bool use_type, const bool add_prefix = true,
const bool use_bjdata = false)
{
switch (j.type())
{
@ -751,19 +764,19 @@ class binary_writer
case value_t::number_integer:
{
write_number_with_ubjson_prefix(j.m_value.number_integer, add_prefix);
write_number_with_ubjson_prefix(j.m_value.number_integer, add_prefix, use_bjdata);
break;
}
case value_t::number_unsigned:
{
write_number_with_ubjson_prefix(j.m_value.number_unsigned, add_prefix);
write_number_with_ubjson_prefix(j.m_value.number_unsigned, add_prefix, use_bjdata);
break;
}
case value_t::number_float:
{
write_number_with_ubjson_prefix(j.m_value.number_float, add_prefix);
write_number_with_ubjson_prefix(j.m_value.number_float, add_prefix, use_bjdata);
break;
}
@ -773,7 +786,7 @@ class binary_writer
{
oa->write_character(to_char_type('S'));
}
write_number_with_ubjson_prefix(j.m_value.string->size(), true);
write_number_with_ubjson_prefix(j.m_value.string->size(), true, use_bjdata);
oa->write_characters(
reinterpret_cast<const CharType*>(j.m_value.string->c_str()),
j.m_value.string->size());
@ -791,14 +804,16 @@ class binary_writer
if (use_type && !j.m_value.array->empty())
{
JSON_ASSERT(use_count);
const CharType first_prefix = ubjson_prefix(j.front());
const CharType first_prefix = ubjson_prefix(j.front(), use_bjdata);
const bool same_prefix = std::all_of(j.begin() + 1, j.end(),
[this, first_prefix](const BasicJsonType & v)
[this, first_prefix, use_bjdata](const BasicJsonType & v)
{
return ubjson_prefix(v) == first_prefix;
return ubjson_prefix(v, use_bjdata) == first_prefix;
});
if (same_prefix)
std::vector<CharType> bjdx = {'[', '{', 'S', 'H', 'T', 'F', 'N', 'Z'}; // excluded markers in bjdata optimized type
if (same_prefix && !(use_bjdata && std::find(bjdx.begin(), bjdx.end(), first_prefix) != bjdx.end()))
{
prefix_required = false;
oa->write_character(to_char_type('$'));
@ -809,12 +824,12 @@ class binary_writer
if (use_count)
{
oa->write_character(to_char_type('#'));
write_number_with_ubjson_prefix(j.m_value.array->size(), true);
write_number_with_ubjson_prefix(j.m_value.array->size(), true, use_bjdata);
}
for (const auto& el : *j.m_value.array)
{
write_ubjson(el, use_count, use_type, prefix_required);
write_ubjson(el, use_count, use_type, prefix_required, use_bjdata);
}
if (!use_count)
@ -842,7 +857,7 @@ class binary_writer
if (use_count)
{
oa->write_character(to_char_type('#'));
write_number_with_ubjson_prefix(j.m_value.binary->size(), true);
write_number_with_ubjson_prefix(j.m_value.binary->size(), true, use_bjdata);
}
if (use_type)
@ -870,6 +885,14 @@ class binary_writer
case value_t::object:
{
if (use_bjdata && j.m_value.object->size() == 3 && j.m_value.object->find("_ArrayType_") != j.m_value.object->end() && j.m_value.object->find("_ArraySize_") != j.m_value.object->end() && j.m_value.object->find("_ArrayData_") != j.m_value.object->end())
{
if (!write_bjdata_ndarray(*j.m_value.object, use_count, use_type)) // decode bjdata ndarray in the JData format (https://github.com/NeuroJSON/jdata)
{
break;
}
}
if (add_prefix)
{
oa->write_character(to_char_type('{'));
@ -879,14 +902,16 @@ class binary_writer
if (use_type && !j.m_value.object->empty())
{
JSON_ASSERT(use_count);
const CharType first_prefix = ubjson_prefix(j.front());
const CharType first_prefix = ubjson_prefix(j.front(), use_bjdata);
const bool same_prefix = std::all_of(j.begin(), j.end(),
[this, first_prefix](const BasicJsonType & v)
[this, first_prefix, use_bjdata](const BasicJsonType & v)
{
return ubjson_prefix(v) == first_prefix;
return ubjson_prefix(v, use_bjdata) == first_prefix;
});
if (same_prefix)
std::vector<CharType> bjdx = {'[', '{', 'S', 'H', 'T', 'F', 'N', 'Z'}; // excluded markers in bjdata optimized type
if (same_prefix && !(use_bjdata && std::find(bjdx.begin(), bjdx.end(), first_prefix) != bjdx.end()))
{
prefix_required = false;
oa->write_character(to_char_type('$'));
@ -897,16 +922,16 @@ class binary_writer
if (use_count)
{
oa->write_character(to_char_type('#'));
write_number_with_ubjson_prefix(j.m_value.object->size(), true);
write_number_with_ubjson_prefix(j.m_value.object->size(), true, use_bjdata);
}
for (const auto& el : *j.m_value.object)
{
write_number_with_ubjson_prefix(el.first.size(), true);
write_number_with_ubjson_prefix(el.first.size(), true, use_bjdata);
oa->write_characters(
reinterpret_cast<const CharType*>(el.first.c_str()),
el.first.size());
write_ubjson(el.second, use_count, use_type, prefix_required);
write_ubjson(el.second, use_count, use_type, prefix_required, use_bjdata);
}
if (!use_count)
@ -937,7 +962,7 @@ class binary_writer
const auto it = name.find(static_cast<typename string_t::value_type>(0));
if (JSON_HEDLEY_UNLIKELY(it != BasicJsonType::string_t::npos))
{
JSON_THROW(out_of_range::create(409, "BSON key cannot contain code point U+0000 (at byte " + std::to_string(it) + ")", j));
JSON_THROW(out_of_range::create(409, concat("BSON key cannot contain code point U+0000 (at byte ", std::to_string(it), ")"), &j));
static_cast<void>(j);
}
@ -973,7 +998,7 @@ class binary_writer
const double value)
{
write_bson_entry_header(name, 0x01);
write_number<double, true>(value);
write_number<double>(value, true);
}
/*!
@ -992,7 +1017,7 @@ class binary_writer
{
write_bson_entry_header(name, 0x02);
write_number<std::int32_t, true>(static_cast<std::int32_t>(value.size() + 1ul));
write_number<std::int32_t>(static_cast<std::int32_t>(value.size() + 1ul), true);
oa->write_characters(
reinterpret_cast<const CharType*>(value.c_str()),
value.size() + 1);
@ -1025,12 +1050,12 @@ class binary_writer
if ((std::numeric_limits<std::int32_t>::min)() <= value && value <= (std::numeric_limits<std::int32_t>::max)())
{
write_bson_entry_header(name, 0x10); // int32
write_number<std::int32_t, true>(static_cast<std::int32_t>(value));
write_number<std::int32_t>(static_cast<std::int32_t>(value), true);
}
else
{
write_bson_entry_header(name, 0x12); // int64
write_number<std::int64_t, true>(static_cast<std::int64_t>(value));
write_number<std::int64_t>(static_cast<std::int64_t>(value), true);
}
}
@ -1053,16 +1078,16 @@ class binary_writer
if (j.m_value.number_unsigned <= static_cast<std::uint64_t>((std::numeric_limits<std::int32_t>::max)()))
{
write_bson_entry_header(name, 0x10 /* int32 */);
write_number<std::int32_t, true>(static_cast<std::int32_t>(j.m_value.number_unsigned));
write_number<std::int32_t>(static_cast<std::int32_t>(j.m_value.number_unsigned), true);
}
else if (j.m_value.number_unsigned <= static_cast<std::uint64_t>((std::numeric_limits<std::int64_t>::max)()))
{
write_bson_entry_header(name, 0x12 /* int64 */);
write_number<std::int64_t, true>(static_cast<std::int64_t>(j.m_value.number_unsigned));
write_number<std::int64_t>(static_cast<std::int64_t>(j.m_value.number_unsigned), true);
}
else
{
JSON_THROW(out_of_range::create(407, "integer number " + std::to_string(j.m_value.number_unsigned) + " cannot be represented by BSON as it does not fit int64", j));
JSON_THROW(out_of_range::create(407, concat("integer number ", std::to_string(j.m_value.number_unsigned), " cannot be represented by BSON as it does not fit int64"), &j));
}
}
@ -1083,7 +1108,7 @@ class binary_writer
{
std::size_t array_index = 0ul;
const std::size_t embedded_document_size = std::accumulate(std::begin(value), std::end(value), std::size_t(0), [&array_index](std::size_t result, const typename BasicJsonType::array_t::value_type & el)
const std::size_t embedded_document_size = std::accumulate(std::begin(value), std::end(value), static_cast<std::size_t>(0), [&array_index](std::size_t result, const typename BasicJsonType::array_t::value_type & el)
{
return result + calc_bson_element_size(std::to_string(array_index++), el);
});
@ -1106,7 +1131,7 @@ class binary_writer
const typename BasicJsonType::array_t& value)
{
write_bson_entry_header(name, 0x04); // array
write_number<std::int32_t, true>(static_cast<std::int32_t>(calc_bson_array_size(value)));
write_number<std::int32_t>(static_cast<std::int32_t>(calc_bson_array_size(value)), true);
std::size_t array_index = 0ul;
@ -1126,8 +1151,8 @@ class binary_writer
{
write_bson_entry_header(name, 0x05);
write_number<std::int32_t, true>(static_cast<std::int32_t>(value.size()));
write_number(value.has_subtype() ? static_cast<std::uint8_t>(value.subtype()) : std::uint8_t(0x00));
write_number<std::int32_t>(static_cast<std::int32_t>(value.size()), true);
write_number(value.has_subtype() ? static_cast<std::uint8_t>(value.subtype()) : static_cast<std::uint8_t>(0x00));
oa->write_characters(reinterpret_cast<const CharType*>(value.data()), value.size());
}
@ -1233,7 +1258,7 @@ class binary_writer
*/
static std::size_t calc_bson_object_size(const typename BasicJsonType::object_t& value)
{
std::size_t document_size = std::accumulate(value.begin(), value.end(), std::size_t(0),
std::size_t document_size = std::accumulate(value.begin(), value.end(), static_cast<std::size_t>(0),
[](size_t result, const typename BasicJsonType::object_t::value_type & el)
{
return result += calc_bson_element_size(el.first, el.second);
@ -1248,7 +1273,7 @@ class binary_writer
*/
void write_bson_object(const typename BasicJsonType::object_t& value)
{
write_number<std::int32_t, true>(static_cast<std::int32_t>(calc_bson_object_size(value)));
write_number<std::int32_t>(static_cast<std::int32_t>(calc_bson_object_size(value)), true);
for (const auto& el : value)
{
@ -1294,20 +1319,22 @@ class binary_writer
template<typename NumberType, typename std::enable_if<
std::is_floating_point<NumberType>::value, int>::type = 0>
void write_number_with_ubjson_prefix(const NumberType n,
const bool add_prefix)
const bool add_prefix,
const bool use_bjdata)
{
if (add_prefix)
{
oa->write_character(get_ubjson_float_prefix(n));
}
write_number(n);
write_number(n, use_bjdata);
}
// UBJSON: write number (unsigned integer)
template<typename NumberType, typename std::enable_if<
std::is_unsigned<NumberType>::value, int>::type = 0>
void write_number_with_ubjson_prefix(const NumberType n,
const bool add_prefix)
const bool add_prefix,
const bool use_bjdata)
{
if (n <= static_cast<std::uint64_t>((std::numeric_limits<std::int8_t>::max)()))
{
@ -1315,7 +1342,7 @@ class binary_writer
{
oa->write_character(to_char_type('i')); // int8
}
write_number(static_cast<std::uint8_t>(n));
write_number(static_cast<std::uint8_t>(n), use_bjdata);
}
else if (n <= (std::numeric_limits<std::uint8_t>::max)())
{
@ -1323,7 +1350,7 @@ class binary_writer
{
oa->write_character(to_char_type('U')); // uint8
}
write_number(static_cast<std::uint8_t>(n));
write_number(static_cast<std::uint8_t>(n), use_bjdata);
}
else if (n <= static_cast<std::uint64_t>((std::numeric_limits<std::int16_t>::max)()))
{
@ -1331,7 +1358,15 @@ class binary_writer
{
oa->write_character(to_char_type('I')); // int16
}
write_number(static_cast<std::int16_t>(n));
write_number(static_cast<std::int16_t>(n), use_bjdata);
}
else if (use_bjdata && n <= static_cast<uint64_t>((std::numeric_limits<uint16_t>::max)()))
{
if (add_prefix)
{
oa->write_character(to_char_type('u')); // uint16 - bjdata only
}
write_number(static_cast<std::uint16_t>(n), use_bjdata);
}
else if (n <= static_cast<std::uint64_t>((std::numeric_limits<std::int32_t>::max)()))
{
@ -1339,7 +1374,15 @@ class binary_writer
{
oa->write_character(to_char_type('l')); // int32
}
write_number(static_cast<std::int32_t>(n));
write_number(static_cast<std::int32_t>(n), use_bjdata);
}
else if (use_bjdata && n <= static_cast<uint64_t>((std::numeric_limits<uint32_t>::max)()))
{
if (add_prefix)
{
oa->write_character(to_char_type('m')); // uint32 - bjdata only
}
write_number(static_cast<std::uint32_t>(n), use_bjdata);
}
else if (n <= static_cast<std::uint64_t>((std::numeric_limits<std::int64_t>::max)()))
{
@ -1347,7 +1390,15 @@ class binary_writer
{
oa->write_character(to_char_type('L')); // int64
}
write_number(static_cast<std::int64_t>(n));
write_number(static_cast<std::int64_t>(n), use_bjdata);
}
else if (use_bjdata && n <= (std::numeric_limits<uint64_t>::max)())
{
if (add_prefix)
{
oa->write_character(to_char_type('M')); // uint64 - bjdata only
}
write_number(static_cast<std::uint64_t>(n), use_bjdata);
}
else
{
@ -1357,7 +1408,7 @@ class binary_writer
}
const auto number = BasicJsonType(n).dump();
write_number_with_ubjson_prefix(number.size(), true);
write_number_with_ubjson_prefix(number.size(), true, use_bjdata);
for (std::size_t i = 0; i < number.size(); ++i)
{
oa->write_character(to_char_type(static_cast<std::uint8_t>(number[i])));
@ -1370,7 +1421,8 @@ class binary_writer
std::is_signed<NumberType>::value&&
!std::is_floating_point<NumberType>::value, int >::type = 0 >
void write_number_with_ubjson_prefix(const NumberType n,
const bool add_prefix)
const bool add_prefix,
const bool use_bjdata)
{
if ((std::numeric_limits<std::int8_t>::min)() <= n && n <= (std::numeric_limits<std::int8_t>::max)())
{
@ -1378,7 +1430,7 @@ class binary_writer
{
oa->write_character(to_char_type('i')); // int8
}
write_number(static_cast<std::int8_t>(n));
write_number(static_cast<std::int8_t>(n), use_bjdata);
}
else if (static_cast<std::int64_t>((std::numeric_limits<std::uint8_t>::min)()) <= n && n <= static_cast<std::int64_t>((std::numeric_limits<std::uint8_t>::max)()))
{
@ -1386,7 +1438,7 @@ class binary_writer
{
oa->write_character(to_char_type('U')); // uint8
}
write_number(static_cast<std::uint8_t>(n));
write_number(static_cast<std::uint8_t>(n), use_bjdata);
}
else if ((std::numeric_limits<std::int16_t>::min)() <= n && n <= (std::numeric_limits<std::int16_t>::max)())
{
@ -1394,7 +1446,15 @@ class binary_writer
{
oa->write_character(to_char_type('I')); // int16
}
write_number(static_cast<std::int16_t>(n));
write_number(static_cast<std::int16_t>(n), use_bjdata);
}
else if (use_bjdata && (static_cast<std::int64_t>((std::numeric_limits<std::uint16_t>::min)()) <= n && n <= static_cast<std::int64_t>((std::numeric_limits<std::uint16_t>::max)())))
{
if (add_prefix)
{
oa->write_character(to_char_type('u')); // uint16 - bjdata only
}
write_number(static_cast<uint16_t>(n), use_bjdata);
}
else if ((std::numeric_limits<std::int32_t>::min)() <= n && n <= (std::numeric_limits<std::int32_t>::max)())
{
@ -1402,7 +1462,15 @@ class binary_writer
{
oa->write_character(to_char_type('l')); // int32
}
write_number(static_cast<std::int32_t>(n));
write_number(static_cast<std::int32_t>(n), use_bjdata);
}
else if (use_bjdata && (static_cast<std::int64_t>((std::numeric_limits<std::uint32_t>::min)()) <= n && n <= static_cast<std::int64_t>((std::numeric_limits<std::uint32_t>::max)())))
{
if (add_prefix)
{
oa->write_character(to_char_type('m')); // uint32 - bjdata only
}
write_number(static_cast<uint32_t>(n), use_bjdata);
}
else if ((std::numeric_limits<std::int64_t>::min)() <= n && n <= (std::numeric_limits<std::int64_t>::max)())
{
@ -1410,7 +1478,7 @@ class binary_writer
{
oa->write_character(to_char_type('L')); // int64
}
write_number(static_cast<std::int64_t>(n));
write_number(static_cast<std::int64_t>(n), use_bjdata);
}
// LCOV_EXCL_START
else
@ -1421,7 +1489,7 @@ class binary_writer
}
const auto number = BasicJsonType(n).dump();
write_number_with_ubjson_prefix(number.size(), true);
write_number_with_ubjson_prefix(number.size(), true, use_bjdata);
for (std::size_t i = 0; i < number.size(); ++i)
{
oa->write_character(to_char_type(static_cast<std::uint8_t>(number[i])));
@ -1433,7 +1501,7 @@ class binary_writer
/*!
@brief determine the type prefix of container values
*/
CharType ubjson_prefix(const BasicJsonType& j) const noexcept
CharType ubjson_prefix(const BasicJsonType& j, const bool use_bjdata) const noexcept
{
switch (j.type())
{
@ -1457,10 +1525,18 @@ class binary_writer
{
return 'I';
}
if (use_bjdata && ((std::numeric_limits<std::uint16_t>::min)() <= j.m_value.number_integer && j.m_value.number_integer <= (std::numeric_limits<std::uint16_t>::max)()))
{
return 'u';
}
if ((std::numeric_limits<std::int32_t>::min)() <= j.m_value.number_integer && j.m_value.number_integer <= (std::numeric_limits<std::int32_t>::max)())
{
return 'l';
}
if (use_bjdata && ((std::numeric_limits<std::uint32_t>::min)() <= j.m_value.number_integer && j.m_value.number_integer <= (std::numeric_limits<std::uint32_t>::max)()))
{
return 'm';
}
if ((std::numeric_limits<std::int64_t>::min)() <= j.m_value.number_integer && j.m_value.number_integer <= (std::numeric_limits<std::int64_t>::max)())
{
return 'L';
@ -1483,14 +1559,26 @@ class binary_writer
{
return 'I';
}
if (use_bjdata && j.m_value.number_unsigned <= static_cast<std::uint64_t>((std::numeric_limits<std::uint16_t>::max)()))
{
return 'u';
}
if (j.m_value.number_unsigned <= static_cast<std::uint64_t>((std::numeric_limits<std::int32_t>::max)()))
{
return 'l';
}
if (use_bjdata && j.m_value.number_unsigned <= static_cast<std::uint64_t>((std::numeric_limits<std::uint32_t>::max)()))
{
return 'm';
}
if (j.m_value.number_unsigned <= static_cast<std::uint64_t>((std::numeric_limits<std::int64_t>::max)()))
{
return 'L';
}
if (use_bjdata && j.m_value.number_unsigned <= (std::numeric_limits<std::uint64_t>::max)())
{
return 'M';
}
// anything else is treated as high-precision number
return 'H'; // LCOV_EXCL_LINE
}
@ -1524,6 +1612,118 @@ class binary_writer
return 'D'; // float 64
}
/*!
@return false if the object is successfully converted to a bjdata ndarray, true if the type or size is invalid
*/
bool write_bjdata_ndarray(const typename BasicJsonType::object_t& value, const bool use_count, const bool use_type)
{
std::map<string_t, CharType> bjdtype = {{"uint8", 'U'}, {"int8", 'i'}, {"uint16", 'u'}, {"int16", 'I'},
{"uint32", 'm'}, {"int32", 'l'}, {"uint64", 'M'}, {"int64", 'L'}, {"single", 'd'}, {"double", 'D'}, {"char", 'C'}
};
string_t key = "_ArrayType_";
auto it = bjdtype.find(static_cast<string_t>(value.at(key)));
if (it == bjdtype.end())
{
return true;
}
CharType dtype = it->second;
key = "_ArraySize_";
std::size_t len = (value.at(key).empty() ? 0 : 1);
for (const auto& el : value.at(key))
{
len *= static_cast<std::size_t>(el.m_value.number_unsigned);
}
key = "_ArrayData_";
if (value.at(key).size() != len)
{
return true;
}
oa->write_character('[');
oa->write_character('$');
oa->write_character(dtype);
oa->write_character('#');
key = "_ArraySize_";
write_ubjson(value.at(key), use_count, use_type, true, true);
key = "_ArrayData_";
if (dtype == 'U' || dtype == 'C')
{
for (const auto& el : value.at(key))
{
write_number(static_cast<std::uint8_t>(el.m_value.number_unsigned), true);
}
}
else if (dtype == 'i')
{
for (const auto& el : value.at(key))
{
write_number(static_cast<std::int8_t>(el.m_value.number_integer), true);
}
}
else if (dtype == 'u')
{
for (const auto& el : value.at(key))
{
write_number(static_cast<std::uint16_t>(el.m_value.number_unsigned), true);
}
}
else if (dtype == 'I')
{
for (const auto& el : value.at(key))
{
write_number(static_cast<std::int16_t>(el.m_value.number_integer), true);
}
}
else if (dtype == 'm')
{
for (const auto& el : value.at(key))
{
write_number(static_cast<std::uint32_t>(el.m_value.number_unsigned), true);
}
}
else if (dtype == 'l')
{
for (const auto& el : value.at(key))
{
write_number(static_cast<std::int32_t>(el.m_value.number_integer), true);
}
}
else if (dtype == 'M')
{
for (const auto& el : value.at(key))
{
write_number(static_cast<std::uint64_t>(el.m_value.number_unsigned), true);
}
}
else if (dtype == 'L')
{
for (const auto& el : value.at(key))
{
write_number(static_cast<std::int64_t>(el.m_value.number_integer), true);
}
}
else if (dtype == 'd')
{
for (const auto& el : value.at(key))
{
write_number(static_cast<float>(el.m_value.number_float), true);
}
}
else if (dtype == 'D')
{
for (const auto& el : value.at(key))
{
write_number(static_cast<double>(el.m_value.number_float), true);
}
}
return false;
}
///////////////////////
// Utility functions //
///////////////////////
@ -1531,16 +1731,18 @@ class binary_writer
/*
@brief write a number to output input
@param[in] n number of type @a NumberType
@tparam NumberType the type of the number
@tparam OutputIsLittleEndian Set to true if output data is
@param[in] OutputIsLittleEndian Set to true if output data is
required to be little endian
@tparam NumberType the type of the number
@note This function needs to respect the system's endianess, because bytes
@note This function needs to respect the system's endianness, because bytes
in CBOR, MessagePack, and UBJSON are stored in network order (big
endian) and therefore need reordering on little endian systems.
On the other hand, BSON and BJData use little endian and should reorder
on big endian systems.
*/
template<typename NumberType, bool OutputIsLittleEndian = false>
void write_number(const NumberType n)
template<typename NumberType>
void write_number(const NumberType n, const bool OutputIsLittleEndian = false)
{
// step 1: write number to array of length NumberType
std::array<CharType, sizeof(NumberType)> vec{};
@ -1625,11 +1827,12 @@ class binary_writer
}
private:
/// whether we can assume little endianess
const bool is_little_endian = little_endianess();
/// whether we can assume little endianness
const bool is_little_endian = little_endianness();
/// the output
output_adapter_t<CharType> oa = nullptr;
};
} // namespace detail
} // namespace nlohmann
NLOHMANN_JSON_NAMESPACE_END