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Niels Lohmann 2021-10-16 14:45:29 +02:00
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29
doc/mkdocs/docs/api/basic_json/from_bson.md
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@ -18,34 +18,7 @@ Deserializes a given input to a JSON value using the BSON (Binary JSON) serializ
1. Reads from a compatible input.
2. Reads from an iterator range.
The library maps BSON record types to JSON value types as follows:
BSON type | BSON marker byte | JSON value type
--------------- | ---------------- | ---------------------------
double | 0x01 | number_float
string | 0x02 | string
document | 0x03 | object
array | 0x04 | array
binary | 0x05 | binary
undefined | 0x06 | still unsupported
ObjectId | 0x07 | still unsupported
boolean | 0x08 | boolean
UTC Date-Time | 0x09 | still unsupported
null | 0x0A | null
Regular Expr. | 0x0B | still unsupported
DB Pointer | 0x0C | still unsupported
JavaScript Code | 0x0D | still unsupported
Symbol | 0x0E | still unsupported
JavaScript Code | 0x0F | still unsupported
int32 | 0x10 | number_integer
Timestamp | 0x11 | still unsupported
128-bit decimal float | 0x13 | still unsupported
Max Key | 0x7F | still unsupported
Min Key | 0xFF | still unsupported
!!! warning
The mapping is **incomplete**. The unsupported mappings are indicated in the table above.
The exact mapping and its limitations is described on a [dedicated page](../../features/binary_formats/bson.md).
## Template parameters

11
doc/mkdocs/docs/api/basic_json/from_cbor.md
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@ -21,6 +21,8 @@ Deserializes a given input to a JSON value using the CBOR (Concise Binary Object
1. Reads from a compatible input.
2. Reads from an iterator range.
The exact mapping and its limitations is described on a [dedicated page](../../features/binary_formats/cbor.md).
## Template parameters
`InputType`
@ -61,6 +63,15 @@ Deserializes a given input to a JSON value using the CBOR (Concise Binary Object
deserialized JSON value; in case of a parse error and `allow_exceptions` set to `#!cpp false`, the return value will be
`value_t::discarded`. The latter can be checked with [`is_discarded`](is_discarded.md).
## Exceptions
- Throws [parse_error.110](../../home/exceptions.md#jsonexceptionparse_error110) if the given input ends prematurely or
the end of file was not reached when `strict` was set to true
- Throws [parse_error.112](../../home/exceptions.md#jsonexceptionparse_error112) if unsupported features from CBOR were
used in the given input or if the input is not valid CBOR
- Throws [parse_error.113](../../home/exceptions.md#jsonexceptionparse_error113) if a string was expected as map key,
but not found
## Exception safety
Strong guarantee: if an exception is thrown, there are no changes in the JSON value.

11
doc/mkdocs/docs/api/basic_json/from_msgpack.md
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@ -18,6 +18,8 @@ Deserializes a given input to a JSON value using the MessagePack serialization f
1. Reads from a compatible input.
2. Reads from an iterator range.
The exact mapping and its limitations is described on a [dedicated page](../../features/binary_formats/messagepack.md).
## Template parameters
`InputType`
@ -54,6 +56,15 @@ Deserializes a given input to a JSON value using the MessagePack serialization f
deserialized JSON value; in case of a parse error and `allow_exceptions` set to `#!cpp false`, the return value will be
`value_t::discarded`. The latter can be checked with [`is_discarded`](is_discarded.md).
## Exceptions
- Throws [parse_error.110](../../home/exceptions.md#jsonexceptionparse_error110) if the given input ends prematurely or
the end of file was not reached when `strict` was set to true
- Throws [parse_error.112](../../home/exceptions.md#jsonexceptionparse_error112) if unsupported features from
MessagePack were used in the given input or if the input is not valid MessagePack
- Throws [parse_error.113](../../home/exceptions.md#jsonexceptionparse_error113) if a string was expected as map key,
but not found
## Exception safety
Strong guarantee: if an exception is thrown, there are no changes in the JSON value.

10
doc/mkdocs/docs/api/basic_json/from_ubjson.md
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@ -18,6 +18,8 @@ Deserializes a given input to a JSON value using the UBJSON (Universal Binary JS
1. Reads from a compatible input.
2. Reads from an iterator range.
The exact mapping and its limitations is described on a [dedicated page](../../features/binary_formats/ubjson.md).
## Template parameters
`InputType`
@ -54,6 +56,14 @@ Deserializes a given input to a JSON value using the UBJSON (Universal Binary JS
deserialized JSON value; in case of a parse error and `allow_exceptions` set to `#!cpp false`, the return value will be
`value_t::discarded`. The latter can be checked with [`is_discarded`](is_discarded.md).
## Exceptions
- Throws [parse_error.110](../../home/exceptions.md#jsonexceptionparse_error110) if the given input ends prematurely or
the end of file was not reached when `strict` was set to true
- Throws [parse_error.112](../../home/exceptions.md#jsonexceptionparse_error112) if a parse error occurs
- Throws [parse_error.113](../../home/exceptions.md#jsonexceptionparse_error113) if a string could not be parsed
successfully
## Exception safety
Strong guarantee: if an exception is thrown, there are no changes in the JSON value.

2
doc/mkdocs/docs/api/basic_json/to_bson.md
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@ -15,6 +15,8 @@ so-called document).
1. Returns a byte vector containing the BSON serialization.
2. Writes the BSON serialization to an output adapter.
The exact mapping and its limitations is described on a [dedicated page](../../features/binary_formats/bson.md).
## Parameters
`j` (in)

2
doc/mkdocs/docs/api/basic_json/to_cbor.md
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@ -16,6 +16,8 @@ parse.
1. Returns a byte vector containing the CBOR serialization.
2. Writes the CBOR serialization to an output adapter.
The exact mapping and its limitations is described on a [dedicated page](../../features/binary_formats/cbor.md).
## Parameters
`j` (in)

2
doc/mkdocs/docs/api/basic_json/to_msgpack.md
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@ -15,6 +15,8 @@ serialization format which aims to be more compact than JSON itself, yet more ef
1. Returns a byte vector containing the MessagePack serialization.
2. Writes the MessagePack serialization to an output adapter.
The exact mapping and its limitations is described on a [dedicated page](../../features/binary_formats/messagepack.md).
## Parameters
`j` (in)

2
doc/mkdocs/docs/api/basic_json/to_ubjson.md
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@ -19,6 +19,8 @@ aims to be more compact than JSON itself, yet more efficient to parse.
1. Returns a byte vector containing the UBJSON serialization.
2. Writes the UBJSON serialization to an output adapter.
The exact mapping and its limitations is described on a [dedicated page](../../features/binary_formats/ubjson.md).
## Parameters
`j` (in)

4
doc/mkdocs/docs/features/binary_formats/bson.md
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@ -1,6 +1,8 @@
# BSON
BSON, short for Bin­ary JSON, is a bin­ary-en­coded seri­al­iz­a­tion of JSON-like doc­u­ments. Like JSON, BSON sup­ports the em­bed­ding of doc­u­ments and ar­rays with­in oth­er doc­u­ments and ar­rays. BSON also con­tains ex­ten­sions that al­low rep­res­ent­a­tion of data types that are not part of the JSON spec. For ex­ample, BSON has a Date type and a BinData type.
BSON, short for Binary JSON, is a binary-encoded serialization of JSON-like documents. Like JSON, BSON supports the
embedding of documents and arrays within other documents and arrays. BSON also contains extensions that allow
representation of data types that are not part of the JSON spec. For example, BSON has a Date type and a BinData type.
!!! abstract "References"

657
include/nlohmann/json.hpp
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@ -2734,26 +2734,22 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
}
public:
/*!
@brief wrapper to access iterator member functions in range-based for
@sa https://json.nlohmann.me/api/basic_json/items/
@deprecated This function is deprecated since 3.1.0 and will be removed in
version 4.0.0 of the library. Please use @ref items() instead;
that is, replace `json::iterator_wrapper(j)` with `j.items()`.
*/
/// @brief wrapper to access iterator member functions in range-based for
/// @sa https://json.nlohmann.me/api/basic_json/items/
/// @deprecated This function is deprecated since 3.1.0 and will be removed in
/// version 4.0.0 of the library. Please use @ref items() instead;
/// that is, replace `json::iterator_wrapper(j)` with `j.items()`.
JSON_HEDLEY_DEPRECATED_FOR(3.1.0, items())
static iteration_proxy<iterator> iterator_wrapper(reference ref) noexcept
{
return ref.items();
}
/*!
@brief wrapper to access iterator member functions in range-based for
@sa https://json.nlohmann.me/api/basic_json/items/
@deprecated This function is deprecated since 3.1.0 and will be removed in
version 4.0.0 of the library. Please use @ref items() instead;
that is, replace `json::iterator_wrapper(j)` with `j.items()`.
*/
/// @brief wrapper to access iterator member functions in range-based for
/// @sa https://json.nlohmann.me/api/basic_json/items/
/// @deprecated This function is deprecated since 3.1.0 and will be removed in
/// version 4.0.0 of the library. Please use @ref items() instead;
/// that is, replace `json::iterator_wrapper(j)` with `j.items()`.
JSON_HEDLEY_DEPRECATED_FOR(3.1.0, items())
static iteration_proxy<const_iterator> iterator_wrapper(const_reference ref) noexcept
{
@ -4159,104 +4155,8 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
/// @{
public:
/*!
@brief create a CBOR serialization of a given JSON value
Serializes a given JSON value @a j to a byte vector using the CBOR (Concise
Binary Object Representation) serialization format. CBOR is a binary
serialization format which aims to be more compact than JSON itself, yet
more efficient to parse.
The library uses the following mapping from JSON values types to
CBOR types according to the CBOR specification (RFC 7049):
JSON value type | value/range | CBOR type | first byte
--------------- | ------------------------------------------ | ---------------------------------- | ---------------
null | `null` | Null | 0xF6
boolean | `true` | True | 0xF5
boolean | `false` | False | 0xF4
number_integer | -9223372036854775808..-2147483649 | Negative integer (8 bytes follow) | 0x3B
number_integer | -2147483648..-32769 | Negative integer (4 bytes follow) | 0x3A
number_integer | -32768..-129 | Negative integer (2 bytes follow) | 0x39
number_integer | -128..-25 | Negative integer (1 byte follow) | 0x38
number_integer | -24..-1 | Negative integer | 0x20..0x37
number_integer | 0..23 | Integer | 0x00..0x17
number_integer | 24..255 | Unsigned integer (1 byte follow) | 0x18
number_integer | 256..65535 | Unsigned integer (2 bytes follow) | 0x19
number_integer | 65536..4294967295 | Unsigned integer (4 bytes follow) | 0x1A
number_integer | 4294967296..18446744073709551615 | Unsigned integer (8 bytes follow) | 0x1B
number_unsigned | 0..23 | Integer | 0x00..0x17
number_unsigned | 24..255 | Unsigned integer (1 byte follow) | 0x18
number_unsigned | 256..65535 | Unsigned integer (2 bytes follow) | 0x19
number_unsigned | 65536..4294967295 | Unsigned integer (4 bytes follow) | 0x1A
number_unsigned | 4294967296..18446744073709551615 | Unsigned integer (8 bytes follow) | 0x1B
number_float | *any value representable by a float* | Single-Precision Float | 0xFA
number_float | *any value NOT representable by a float* | Double-Precision Float | 0xFB
string | *length*: 0..23 | UTF-8 string | 0x60..0x77
string | *length*: 23..255 | UTF-8 string (1 byte follow) | 0x78
string | *length*: 256..65535 | UTF-8 string (2 bytes follow) | 0x79
string | *length*: 65536..4294967295 | UTF-8 string (4 bytes follow) | 0x7A
string | *length*: 4294967296..18446744073709551615 | UTF-8 string (8 bytes follow) | 0x7B
array | *size*: 0..23 | array | 0x80..0x97
array | *size*: 23..255 | array (1 byte follow) | 0x98
array | *size*: 256..65535 | array (2 bytes follow) | 0x99
array | *size*: 65536..4294967295 | array (4 bytes follow) | 0x9A
array | *size*: 4294967296..18446744073709551615 | array (8 bytes follow) | 0x9B
object | *size*: 0..23 | map | 0xA0..0xB7
object | *size*: 23..255 | map (1 byte follow) | 0xB8
object | *size*: 256..65535 | map (2 bytes follow) | 0xB9
object | *size*: 65536..4294967295 | map (4 bytes follow) | 0xBA
object | *size*: 4294967296..18446744073709551615 | map (8 bytes follow) | 0xBB
binary | *size*: 0..23 | byte string | 0x40..0x57
binary | *size*: 23..255 | byte string (1 byte follow) | 0x58
binary | *size*: 256..65535 | byte string (2 bytes follow) | 0x59
binary | *size*: 65536..4294967295 | byte string (4 bytes follow) | 0x5A
binary | *size*: 4294967296..18446744073709551615 | byte string (8 bytes follow) | 0x5B
Binary values with subtype are mapped to tagged values (0xD8..0xDB)
depending on the subtype, followed by a byte string, see "binary" cells
in the table above.
@note The mapping is **complete** in the sense that any JSON value type
can be converted to a CBOR value.
@note If NaN or Infinity are stored inside a JSON number, they are
serialized properly. This behavior differs from the @ref dump()
function which serializes NaN or Infinity to `null`.
@note The following CBOR types are not used in the conversion:
- UTF-8 strings terminated by "break" (0x7F)
- arrays terminated by "break" (0x9F)
- maps terminated by "break" (0xBF)
- byte strings terminated by "break" (0x5F)
- date/time (0xC0..0xC1)
- bignum (0xC2..0xC3)
- decimal fraction (0xC4)
- bigfloat (0xC5)
- expected conversions (0xD5..0xD7)
- simple values (0xE0..0xF3, 0xF8)
- undefined (0xF7)
- half-precision floats (0xF9)
- break (0xFF)
@param[in] j JSON value to serialize
@return CBOR serialization as byte vector
@complexity Linear in the size of the JSON value @a j.
@liveexample{The example shows the serialization of a JSON value to a byte
vector in CBOR format.,to_cbor}
@sa http://cbor.io
@sa see @ref from_cbor(InputType&&, const bool, const bool, const cbor_tag_handler_t) for the
analogous deserialization
@sa see @ref to_msgpack(const basic_json&) for the related MessagePack format
@sa see @ref to_ubjson(const basic_json&, const bool, const bool) for the
related UBJSON format
@since version 2.0.9; compact representation of floating-point numbers
since version 3.8.0
*/
/// @brief create a CBOR serialization of a given JSON value
/// @sa https://json.nlohmann.me/api/basic_json/to_cbor/
static std::vector<std::uint8_t> to_cbor(const basic_json& j)
{
std::vector<std::uint8_t> result;
@ -4264,94 +4164,22 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
return result;
}
/// @brief create a CBOR serialization of a given JSON value
/// @sa https://json.nlohmann.me/api/basic_json/to_cbor/
static void to_cbor(const basic_json& j, detail::output_adapter<std::uint8_t> o)
{
binary_writer<std::uint8_t>(o).write_cbor(j);
}
/// @brief create a CBOR serialization of a given JSON value
/// @sa https://json.nlohmann.me/api/basic_json/to_cbor/
static void to_cbor(const basic_json& j, detail::output_adapter<char> o)
{
binary_writer<char>(o).write_cbor(j);
}
/*!
@brief create a MessagePack serialization of a given JSON value
Serializes a given JSON value @a j to a byte vector using the MessagePack
serialization format. MessagePack is a binary serialization format which
aims to be more compact than JSON itself, yet more efficient to parse.
The library uses the following mapping from JSON values types to
MessagePack types according to the MessagePack specification:
JSON value type | value/range | MessagePack type | first byte
--------------- | --------------------------------- | ---------------- | ----------
null | `null` | nil | 0xC0
boolean | `true` | true | 0xC3
boolean | `false` | false | 0xC2
number_integer | -9223372036854775808..-2147483649 | int64 | 0xD3
number_integer | -2147483648..-32769 | int32 | 0xD2
number_integer | -32768..-129 | int16 | 0xD1
number_integer | -128..-33 | int8 | 0xD0
number_integer | -32..-1 | negative fixint | 0xE0..0xFF
number_integer | 0..127 | positive fixint | 0x00..0x7F
number_integer | 128..255 | uint 8 | 0xCC
number_integer | 256..65535 | uint 16 | 0xCD
number_integer | 65536..4294967295 | uint 32 | 0xCE
number_integer | 4294967296..18446744073709551615 | uint 64 | 0xCF
number_unsigned | 0..127 | positive fixint | 0x00..0x7F
number_unsigned | 128..255 | uint 8 | 0xCC
number_unsigned | 256..65535 | uint 16 | 0xCD
number_unsigned | 65536..4294967295 | uint 32 | 0xCE
number_unsigned | 4294967296..18446744073709551615 | uint 64 | 0xCF
number_float | *any value representable by a float* | float 32 | 0xCA
number_float | *any value NOT representable by a float* | float 64 | 0xCB
string | *length*: 0..31 | fixstr | 0xA0..0xBF
string | *length*: 32..255 | str 8 | 0xD9
string | *length*: 256..65535 | str 16 | 0xDA
string | *length*: 65536..4294967295 | str 32 | 0xDB
array | *size*: 0..15 | fixarray | 0x90..0x9F
array | *size*: 16..65535 | array 16 | 0xDC
array | *size*: 65536..4294967295 | array 32 | 0xDD
object | *size*: 0..15 | fix map | 0x80..0x8F
object | *size*: 16..65535 | map 16 | 0xDE
object | *size*: 65536..4294967295 | map 32 | 0xDF
binary | *size*: 0..255 | bin 8 | 0xC4
binary | *size*: 256..65535 | bin 16 | 0xC5
binary | *size*: 65536..4294967295 | bin 32 | 0xC6
@note The mapping is **complete** in the sense that any JSON value type
can be converted to a MessagePack value.
@note The following values can **not** be converted to a MessagePack value:
- strings with more than 4294967295 bytes
- byte strings with more than 4294967295 bytes
- arrays with more than 4294967295 elements
- objects with more than 4294967295 elements
@note Any MessagePack output created @ref to_msgpack can be successfully
parsed by @ref from_msgpack.
@note If NaN or Infinity are stored inside a JSON number, they are
serialized properly. This behavior differs from the @ref dump()
function which serializes NaN or Infinity to `null`.
@param[in] j JSON value to serialize
@return MessagePack serialization as byte vector
@complexity Linear in the size of the JSON value @a j.
@liveexample{The example shows the serialization of a JSON value to a byte
vector in MessagePack format.,to_msgpack}
@sa http://msgpack.org
@sa see @ref from_msgpack for the analogous deserialization
@sa see @ref to_cbor(const basic_json& for the related CBOR format
@sa see @ref to_ubjson(const basic_json&, const bool, const bool) for the
related UBJSON format
@since version 2.0.9
*/
/// @brief create a MessagePack serialization of a given JSON value
/// @sa https://json.nlohmann.me/api/basic_json/to_msgpack/
static std::vector<std::uint8_t> to_msgpack(const basic_json& j)
{
std::vector<std::uint8_t> result;
@ -4359,102 +4187,22 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
return result;
}
/// @brief create a MessagePack serialization of a given JSON value
/// @sa https://json.nlohmann.me/api/basic_json/to_msgpack/
static void to_msgpack(const basic_json& j, detail::output_adapter<std::uint8_t> o)
{
binary_writer<std::uint8_t>(o).write_msgpack(j);
}
/// @brief create a MessagePack serialization of a given JSON value
/// @sa https://json.nlohmann.me/api/basic_json/to_msgpack/
static void to_msgpack(const basic_json& j, detail::output_adapter<char> o)
{
binary_writer<char>(o).write_msgpack(j);
}
/*!
@brief create a UBJSON serialization of a given JSON value
Serializes a given JSON value @a j to a byte vector using the UBJSON
(Universal Binary JSON) serialization format. UBJSON aims to be more compact
than JSON itself, yet more efficient to parse.
The library uses the following mapping from JSON values types to
UBJSON types according to the UBJSON specification:
JSON value type | value/range | UBJSON type | marker
--------------- | --------------------------------- | ----------- | ------
null | `null` | null | `Z`
boolean | `true` | true | `T`
boolean | `false` | false | `F`
number_integer | -9223372036854775808..-2147483649 | int64 | `L`
number_integer | -2147483648..-32769 | int32 | `l`
number_integer | -32768..-129 | int16 | `I`
number_integer | -128..127 | int8 | `i`
number_integer | 128..255 | uint8 | `U`
number_integer | 256..32767 | int16 | `I`
number_integer | 32768..2147483647 | int32 | `l`
number_integer | 2147483648..9223372036854775807 | int64 | `L`
number_unsigned | 0..127 | int8 | `i`
number_unsigned | 128..255 | uint8 | `U`
number_unsigned | 256..32767 | int16 | `I`
number_unsigned | 32768..2147483647 | int32 | `l`
number_unsigned | 2147483648..9223372036854775807 | int64 | `L`
number_unsigned | 2147483649..18446744073709551615 | high-precision | `H`
number_float | *any value* | float64 | `D`
string | *with shortest length indicator* | string | `S`
array | *see notes on optimized format* | array | `[`
object | *see notes on optimized format* | map | `{`
@note The mapping is **complete** in the sense that any JSON value type
can be converted to a UBJSON value.
@note The following values can **not** be converted to a UBJSON value:
- strings with more than 9223372036854775807 bytes (theoretical)
@note The following markers are not used in the conversion:
- `Z`: no-op values are not created.
- `C`: single-byte strings are serialized with `S` markers.
@note Any UBJSON output created @ref to_ubjson can be successfully parsed
by @ref from_ubjson.
@note If NaN or Infinity are stored inside a JSON number, they are
serialized properly. This behavior differs from the @ref dump()
function which serializes NaN or Infinity to `null`.
@note The optimized formats for containers are supported: Parameter
@a use_size adds size information to the beginning of a container and
removes the closing marker. Parameter @a use_type further checks
whether all elements of a container have the same type and adds the
type marker to the beginning of the container. The @a use_type
parameter must only be used together with @a use_size = true. Note
that @a use_size = true alone may result in larger representations -
the benefit of this parameter is that the receiving side is
immediately informed on the number of elements of the container.
@note If the JSON data contains the binary type, the value stored is a list
of integers, as suggested by the UBJSON documentation. In particular,
this means that serialization and the deserialization of a JSON
containing binary values into UBJSON and back will result in a
different JSON object.
@param[in] j JSON value to serialize
@param[in] use_size whether to add size annotations to container types
@param[in] use_type whether to add type annotations to container types
(must be combined with @a use_size = true)
@return UBJSON serialization as byte vector
@complexity Linear in the size of the JSON value @a j.
@liveexample{The example shows the serialization of a JSON value to a byte
vector in UBJSON format.,to_ubjson}
@sa http://ubjson.org
@sa see @ref from_ubjson(InputType&&, const bool, const bool) for the
analogous deserialization
@sa see @ref to_cbor(const basic_json& for the related CBOR format
@sa see @ref to_msgpack(const basic_json&) for the related MessagePack format
@since version 3.1.0
*/
/// @brief create a UBJSON serialization of a given JSON value
/// @sa https://json.nlohmann.me/api/basic_json/to_ubjson/
static std::vector<std::uint8_t> to_ubjson(const basic_json& j,
const bool use_size = false,
const bool use_type = false)
@ -4464,75 +4212,24 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
return result;
}
/// @brief create a UBJSON serialization of a given JSON value
/// @sa https://json.nlohmann.me/api/basic_json/to_ubjson/
static void to_ubjson(const basic_json& j, detail::output_adapter<std::uint8_t> o,
const bool use_size = false, const bool use_type = false)
{
binary_writer<std::uint8_t>(o).write_ubjson(j, use_size, use_type);
}
/// @brief create a UBJSON serialization of a given JSON value
/// @sa https://json.nlohmann.me/api/basic_json/to_ubjson/
static void to_ubjson(const basic_json& j, detail::output_adapter<char> o,
const bool use_size = false, const bool use_type = false)
{
binary_writer<char>(o).write_ubjson(j, use_size, use_type);
}
/*!
@brief Serializes the given JSON object `j` to BSON and returns a vector
containing the corresponding BSON-representation.
BSON (Binary JSON) is a binary format in which zero or more ordered key/value pairs are
stored as a single entity (a so-called document).
The library uses the following mapping from JSON values types to BSON types:
JSON value type | value/range | BSON type | marker
--------------- | --------------------------------- | ----------- | ------
null | `null` | null | 0x0A
boolean | `true`, `false` | boolean | 0x08
number_integer | -9223372036854775808..-2147483649 | int64 | 0x12
number_integer | -2147483648..2147483647 | int32 | 0x10
number_integer | 2147483648..9223372036854775807 | int64 | 0x12
number_unsigned | 0..2147483647 | int32 | 0x10
number_unsigned | 2147483648..9223372036854775807 | int64 | 0x12
number_unsigned | 9223372036854775808..18446744073709551615| -- | --
number_float | *any value* | double | 0x01
string | *any value* | string | 0x02
array | *any value* | document | 0x04
object | *any value* | document | 0x03
binary | *any value* | binary | 0x05
@warning The mapping is **incomplete**, since only JSON-objects (and things
contained therein) can be serialized to BSON.
Also, integers larger than 9223372036854775807 cannot be serialized to BSON,
and the keys may not contain U+0000, since they are serialized a
zero-terminated c-strings.
@throw out_of_range.407 if `j.is_number_unsigned() && j.get<std::uint64_t>() > 9223372036854775807`
@throw out_of_range.409 if a key in `j` contains a NULL (U+0000)
@throw type_error.317 if `!j.is_object()`
@pre The input `j` is required to be an object: `j.is_object() == true`.
@note Any BSON output created via @ref to_bson can be successfully parsed
by @ref from_bson.
@param[in] j JSON value to serialize
@return BSON serialization as byte vector
@complexity Linear in the size of the JSON value @a j.
@liveexample{The example shows the serialization of a JSON value to a byte
vector in BSON format.,to_bson}
@sa http://bsonspec.org/spec.html
@sa see @ref from_bson(detail::input_adapter&&, const bool strict) for the
analogous deserialization
@sa see @ref to_ubjson(const basic_json&, const bool, const bool) for the
related UBJSON format
@sa see @ref to_cbor(const basic_json&) for the related CBOR format
@sa see @ref to_msgpack(const basic_json&) for the related MessagePack format
*/
/// @brief create a BSON serialization of a given JSON value
/// @sa https://json.nlohmann.me/api/basic_json/to_bson/
static std::vector<std::uint8_t> to_bson(const basic_json& j)
{
std::vector<std::uint8_t> result;
@ -4540,130 +4237,22 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
return result;
}
/*!
@brief Serializes the given JSON object `j` to BSON and forwards the
corresponding BSON-representation to the given output_adapter `o`.
@param j The JSON object to convert to BSON.
@param o The output adapter that receives the binary BSON representation.
@pre The input `j` shall be an object: `j.is_object() == true`
@sa see @ref to_bson(const basic_json&)
*/
/// @brief create a BSON serialization of a given JSON value
/// @sa https://json.nlohmann.me/api/basic_json/to_bson/
static void to_bson(const basic_json& j, detail::output_adapter<std::uint8_t> o)
{
binary_writer<std::uint8_t>(o).write_bson(j);
}
/*!
@copydoc to_bson(const basic_json&, detail::output_adapter<std::uint8_t>)
*/
/// @brief create a BSON serialization of a given JSON value
/// @sa https://json.nlohmann.me/api/basic_json/to_bson/
static void to_bson(const basic_json& j, detail::output_adapter<char> o)
{
binary_writer<char>(o).write_bson(j);
}
/*!
@brief create a JSON value from an input in CBOR format
Deserializes a given input @a i to a JSON value using the CBOR (Concise
Binary Object Representation) serialization format.
The library maps CBOR types to JSON value types as follows:
CBOR type | JSON value type | first byte
---------------------- | --------------- | ----------
Integer | number_unsigned | 0x00..0x17
Unsigned integer | number_unsigned | 0x18
Unsigned integer | number_unsigned | 0x19
Unsigned integer | number_unsigned | 0x1A
Unsigned integer | number_unsigned | 0x1B
Negative integer | number_integer | 0x20..0x37
Negative integer | number_integer | 0x38
Negative integer | number_integer | 0x39
Negative integer | number_integer | 0x3A
Negative integer | number_integer | 0x3B
Byte string | binary | 0x40..0x57
Byte string | binary | 0x58
Byte string | binary | 0x59
Byte string | binary | 0x5A
Byte string | binary | 0x5B
UTF-8 string | string | 0x60..0x77
UTF-8 string | string | 0x78
UTF-8 string | string | 0x79
UTF-8 string | string | 0x7A
UTF-8 string | string | 0x7B
UTF-8 string | string | 0x7F
array | array | 0x80..0x97
array | array | 0x98
array | array | 0x99
array | array | 0x9A
array | array | 0x9B
array | array | 0x9F
map | object | 0xA0..0xB7
map | object | 0xB8
map | object | 0xB9
map | object | 0xBA
map | object | 0xBB
map | object | 0xBF
False | `false` | 0xF4
True | `true` | 0xF5
Null | `null` | 0xF6
Half-Precision Float | number_float | 0xF9
Single-Precision Float | number_float | 0xFA
Double-Precision Float | number_float | 0xFB
@warning The mapping is **incomplete** in the sense that not all CBOR
types can be converted to a JSON value. The following CBOR types
are not supported and will yield parse errors (parse_error.112):
- date/time (0xC0..0xC1)
- bignum (0xC2..0xC3)
- decimal fraction (0xC4)
- bigfloat (0xC5)
- expected conversions (0xD5..0xD7)
- simple values (0xE0..0xF3, 0xF8)
- undefined (0xF7)
@warning CBOR allows map keys of any type, whereas JSON only allows
strings as keys in object values. Therefore, CBOR maps with keys
other than UTF-8 strings are rejected (parse_error.113).
@note Any CBOR output created @ref to_cbor can be successfully parsed by
@ref from_cbor.
@param[in] i an input in CBOR format convertible to an input adapter
@param[in] strict whether to expect the input to be consumed until EOF
(true by default)
@param[in] allow_exceptions whether to throw exceptions in case of a
parse error (optional, true by default)
@param[in] tag_handler how to treat CBOR tags (optional, error by default)
@return deserialized JSON value; in case of a parse error and
@a allow_exceptions set to `false`, the return value will be
value_t::discarded.
@throw parse_error.110 if the given input ends prematurely or the end of
file was not reached when @a strict was set to true
@throw parse_error.112 if unsupported features from CBOR were
used in the given input @a v or if the input is not valid CBOR
@throw parse_error.113 if a string was expected as map key, but not found
@complexity Linear in the size of the input @a i.
@liveexample{The example shows the deserialization of a byte vector in CBOR
format to a JSON value.,from_cbor}
@sa http://cbor.io
@sa see @ref to_cbor(const basic_json&) for the analogous serialization
@sa see @ref from_msgpack(InputType&&, const bool, const bool) for the
related MessagePack format
@sa see @ref from_ubjson(InputType&&, const bool, const bool) for the
related UBJSON format
@since version 2.0.9; parameter @a start_index since 2.1.1; changed to
consume input adapters, removed start_index parameter, and added
@a strict parameter since 3.0.0; added @a allow_exceptions parameter
since 3.2.0; added @a tag_handler parameter since 3.9.0.
*/
/// @brief create a JSON value from an input in CBOR format
/// @sa https://json.nlohmann.me/api/basic_json/from_cbor/
template<typename InputType>
JSON_HEDLEY_WARN_UNUSED_RESULT
static basic_json from_cbor(InputType&& i,
@ -4678,9 +4267,8 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
return res ? result : basic_json(value_t::discarded);
}
/*!
@copydoc from_cbor(InputType&&, const bool, const bool, const cbor_tag_handler_t)
*/
/// @brief create a JSON value from an input in CBOR format
/// @sa https://json.nlohmann.me/api/basic_json/from_cbor/
template<typename IteratorType>
JSON_HEDLEY_WARN_UNUSED_RESULT
static basic_json from_cbor(IteratorType first, IteratorType last,
@ -4722,92 +4310,8 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
return res ? result : basic_json(value_t::discarded);
}
/*!
@brief create a JSON value from an input in MessagePack format
Deserializes a given input @a i to a JSON value using the MessagePack
serialization format.
The library maps MessagePack types to JSON value types as follows:
MessagePack type | JSON value type | first byte
---------------- | --------------- | ----------
positive fixint | number_unsigned | 0x00..0x7F
fixmap | object | 0x80..0x8F
fixarray | array | 0x90..0x9F
fixstr | string | 0xA0..0xBF
nil | `null` | 0xC0
false | `false` | 0xC2
true | `true` | 0xC3
float 32 | number_float | 0xCA
float 64 | number_float | 0xCB
uint 8 | number_unsigned | 0xCC
uint 16 | number_unsigned | 0xCD
uint 32 | number_unsigned | 0xCE
uint 64 | number_unsigned | 0xCF
int 8 | number_integer | 0xD0
int 16 | number_integer | 0xD1
int 32 | number_integer | 0xD2
int 64 | number_integer | 0xD3
str 8 | string | 0xD9
str 16 | string | 0xDA
str 32 | string | 0xDB
array 16 | array | 0xDC
array 32 | array | 0xDD
map 16 | object | 0xDE
map 32 | object | 0xDF
bin 8 | binary | 0xC4
bin 16 | binary | 0xC5
bin 32 | binary | 0xC6
ext 8 | binary | 0xC7
ext 16 | binary | 0xC8
ext 32 | binary | 0xC9
fixext 1 | binary | 0xD4
fixext 2 | binary | 0xD5
fixext 4 | binary | 0xD6
fixext 8 | binary | 0xD7
fixext 16 | binary | 0xD8
negative fixint | number_integer | 0xE0-0xFF
@note Any MessagePack output created @ref to_msgpack can be successfully
parsed by @ref from_msgpack.
@param[in] i an input in MessagePack format convertible to an input
adapter
@param[in] strict whether to expect the input to be consumed until EOF
(true by default)
@param[in] allow_exceptions whether to throw exceptions in case of a
parse error (optional, true by default)
@return deserialized JSON value; in case of a parse error and
@a allow_exceptions set to `false`, the return value will be
value_t::discarded.
@throw parse_error.110 if the given input ends prematurely or the end of
file was not reached when @a strict was set to true
@throw parse_error.112 if unsupported features from MessagePack were
used in the given input @a i or if the input is not valid MessagePack
@throw parse_error.113 if a string was expected as map key, but not found
@complexity Linear in the size of the input @a i.
@liveexample{The example shows the deserialization of a byte vector in
MessagePack format to a JSON value.,from_msgpack}
@sa http://msgpack.org
@sa see @ref to_msgpack(const basic_json&) for the analogous serialization
@sa see @ref from_cbor(InputType&&, const bool, const bool, const cbor_tag_handler_t) for the
related CBOR format
@sa see @ref from_ubjson(InputType&&, const bool, const bool) for
the related UBJSON format
@sa see @ref from_bson(InputType&&, const bool, const bool) for
the related BSON format
@since version 2.0.9; parameter @a start_index since 2.1.1; changed to
consume input adapters, removed start_index parameter, and added
@a strict parameter since 3.0.0; added @a allow_exceptions parameter
since 3.2.0
*/
/// @brief create a JSON value from an input in MessagePack format
/// @sa https://json.nlohmann.me/api/basic_json/from_msgpack/
template<typename InputType>
JSON_HEDLEY_WARN_UNUSED_RESULT
static basic_json from_msgpack(InputType&& i,
@ -4821,9 +4325,8 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
return res ? result : basic_json(value_t::discarded);
}
/*!
@copydoc from_msgpack(InputType&&, const bool, const bool)
*/
/// @brief create a JSON value from an input in MessagePack format
/// @sa https://json.nlohmann.me/api/basic_json/from_msgpack/
template<typename IteratorType>
JSON_HEDLEY_WARN_UNUSED_RESULT
static basic_json from_msgpack(IteratorType first, IteratorType last,
@ -4837,7 +4340,6 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
return res ? result : basic_json(value_t::discarded);
}
template<typename T>
JSON_HEDLEY_WARN_UNUSED_RESULT
JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_msgpack(ptr, ptr + len))
@ -4862,69 +4364,8 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
return res ? result : basic_json(value_t::discarded);
}
/*!
@brief create a JSON value from an input in UBJSON format
Deserializes a given input @a i to a JSON value using the UBJSON (Universal
Binary JSON) serialization format.
The library maps UBJSON types to JSON value types as follows:
UBJSON type | JSON value type | marker
----------- | --------------------------------------- | ------
no-op | *no value, next value is read* | `N`
null | `null` | `Z`
false | `false` | `F`
true | `true` | `T`
float32 | number_float | `d`
float64 | number_float | `D`
uint8 | number_unsigned | `U`
int8 | number_integer | `i`
int16 | number_integer | `I`
int32 | number_integer | `l`
int64 | number_integer | `L`
high-precision number | number_integer, number_unsigned, or number_float - depends on number string | 'H'
string | string | `S`
char | string | `C`
array | array (optimized values are supported) | `[`
object | object (optimized values are supported) | `{`
@note The mapping is **complete** in the sense that any UBJSON value can
be converted to a JSON value.
@param[in] i an input in UBJSON format convertible to an input adapter
@param[in] strict whether to expect the input to be consumed until EOF
(true by default)
@param[in] allow_exceptions whether to throw exceptions in case of a
parse error (optional, true by default)
@return deserialized JSON value; in case of a parse error and
@a allow_exceptions set to `false`, the return value will be
value_t::discarded.
@throw parse_error.110 if the given input ends prematurely or the end of
file was not reached when @a strict was set to true
@throw parse_error.112 if a parse error occurs
@throw parse_error.113 if a string could not be parsed successfully
@complexity Linear in the size of the input @a i.
@liveexample{The example shows the deserialization of a byte vector in
UBJSON format to a JSON value.,from_ubjson}
@sa http://ubjson.org
@sa see @ref to_ubjson(const basic_json&, const bool, const bool) for the
analogous serialization
@sa see @ref from_cbor(InputType&&, const bool, const bool, const cbor_tag_handler_t) for the
related CBOR format
@sa see @ref from_msgpack(InputType&&, const bool, const bool) for
the related MessagePack format
@sa see @ref from_bson(InputType&&, const bool, const bool) for
the related BSON format
@since version 3.1.0; added @a allow_exceptions parameter since 3.2.0
*/
/// @brief create a JSON value from an input in UBJSON format
/// @sa https://json.nlohmann.me/api/basic_json/from_ubjson/
template<typename InputType>
JSON_HEDLEY_WARN_UNUSED_RESULT
static basic_json from_ubjson(InputType&& i,
@ -4938,9 +4379,8 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
return res ? result : basic_json(value_t::discarded);
}
/*!
@copydoc from_ubjson(InputType&&, const bool, const bool)
*/
/// @brief create a JSON value from an input in UBJSON format
/// @sa https://json.nlohmann.me/api/basic_json/from_ubjson/
template<typename IteratorType>
JSON_HEDLEY_WARN_UNUSED_RESULT
static basic_json from_ubjson(IteratorType first, IteratorType last,
@ -4978,8 +4418,7 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
return res ? result : basic_json(value_t::discarded);
}
/// @brief Create a JSON value from an input in BSON format
/// @brief create a JSON value from an input in BSON format
/// @sa https://json.nlohmann.me/api/basic_json/from_bson/
template<typename InputType>
JSON_HEDLEY_WARN_UNUSED_RESULT
@ -4994,7 +4433,7 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
return res ? result : basic_json(value_t::discarded);
}
/// @brief Create a JSON value from an input in BSON format
/// @brief create a JSON value from an input in BSON format
/// @sa https://json.nlohmann.me/api/basic_json/from_bson/
template<typename IteratorType>
JSON_HEDLEY_WARN_UNUSED_RESULT

657
single_include/nlohmann/json.hpp
View File

@ -20235,26 +20235,22 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
}
public:
/*!
@brief wrapper to access iterator member functions in range-based for
@sa https://json.nlohmann.me/api/basic_json/items/
@deprecated This function is deprecated since 3.1.0 and will be removed in
version 4.0.0 of the library. Please use @ref items() instead;
that is, replace `json::iterator_wrapper(j)` with `j.items()`.
*/
/// @brief wrapper to access iterator member functions in range-based for
/// @sa https://json.nlohmann.me/api/basic_json/items/
/// @deprecated This function is deprecated since 3.1.0 and will be removed in
/// version 4.0.0 of the library. Please use @ref items() instead;
/// that is, replace `json::iterator_wrapper(j)` with `j.items()`.
JSON_HEDLEY_DEPRECATED_FOR(3.1.0, items())
static iteration_proxy<iterator> iterator_wrapper(reference ref) noexcept
{
return ref.items();
}
/*!
@brief wrapper to access iterator member functions in range-based for
@sa https://json.nlohmann.me/api/basic_json/items/
@deprecated This function is deprecated since 3.1.0 and will be removed in
version 4.0.0 of the library. Please use @ref items() instead;
that is, replace `json::iterator_wrapper(j)` with `j.items()`.
*/
/// @brief wrapper to access iterator member functions in range-based for
/// @sa https://json.nlohmann.me/api/basic_json/items/
/// @deprecated This function is deprecated since 3.1.0 and will be removed in
/// version 4.0.0 of the library. Please use @ref items() instead;
/// that is, replace `json::iterator_wrapper(j)` with `j.items()`.
JSON_HEDLEY_DEPRECATED_FOR(3.1.0, items())
static iteration_proxy<const_iterator> iterator_wrapper(const_reference ref) noexcept
{
@ -21660,104 +21656,8 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
/// @{
public:
/*!
@brief create a CBOR serialization of a given JSON value
Serializes a given JSON value @a j to a byte vector using the CBOR (Concise
Binary Object Representation) serialization format. CBOR is a binary
serialization format which aims to be more compact than JSON itself, yet
more efficient to parse.
The library uses the following mapping from JSON values types to
CBOR types according to the CBOR specification (RFC 7049):
JSON value type | value/range | CBOR type | first byte
--------------- | ------------------------------------------ | ---------------------------------- | ---------------
null | `null` | Null | 0xF6
boolean | `true` | True | 0xF5
boolean | `false` | False | 0xF4
number_integer | -9223372036854775808..-2147483649 | Negative integer (8 bytes follow) | 0x3B
number_integer | -2147483648..-32769 | Negative integer (4 bytes follow) | 0x3A
number_integer | -32768..-129 | Negative integer (2 bytes follow) | 0x39
number_integer | -128..-25 | Negative integer (1 byte follow) | 0x38
number_integer | -24..-1 | Negative integer | 0x20..0x37
number_integer | 0..23 | Integer | 0x00..0x17
number_integer | 24..255 | Unsigned integer (1 byte follow) | 0x18
number_integer | 256..65535 | Unsigned integer (2 bytes follow) | 0x19
number_integer | 65536..4294967295 | Unsigned integer (4 bytes follow) | 0x1A
number_integer | 4294967296..18446744073709551615 | Unsigned integer (8 bytes follow) | 0x1B
number_unsigned | 0..23 | Integer | 0x00..0x17
number_unsigned | 24..255 | Unsigned integer (1 byte follow) | 0x18
number_unsigned | 256..65535 | Unsigned integer (2 bytes follow) | 0x19
number_unsigned | 65536..4294967295 | Unsigned integer (4 bytes follow) | 0x1A
number_unsigned | 4294967296..18446744073709551615 | Unsigned integer (8 bytes follow) | 0x1B
number_float | *any value representable by a float* | Single-Precision Float | 0xFA
number_float | *any value NOT representable by a float* | Double-Precision Float | 0xFB
string | *length*: 0..23 | UTF-8 string | 0x60..0x77
string | *length*: 23..255 | UTF-8 string (1 byte follow) | 0x78
string | *length*: 256..65535 | UTF-8 string (2 bytes follow) | 0x79
string | *length*: 65536..4294967295 | UTF-8 string (4 bytes follow) | 0x7A
string | *length*: 4294967296..18446744073709551615 | UTF-8 string (8 bytes follow) | 0x7B
array | *size*: 0..23 | array | 0x80..0x97
array | *size*: 23..255 | array (1 byte follow) | 0x98
array | *size*: 256..65535 | array (2 bytes follow) | 0x99
array | *size*: 65536..4294967295 | array (4 bytes follow) | 0x9A
array | *size*: 4294967296..18446744073709551615 | array (8 bytes follow) | 0x9B
object | *size*: 0..23 | map | 0xA0..0xB7
object | *size*: 23..255 | map (1 byte follow) | 0xB8
object | *size*: 256..65535 | map (2 bytes follow) | 0xB9
object | *size*: 65536..4294967295 | map (4 bytes follow) | 0xBA
object | *size*: 4294967296..18446744073709551615 | map (8 bytes follow) | 0xBB
binary | *size*: 0..23 | byte string | 0x40..0x57
binary | *size*: 23..255 | byte string (1 byte follow) | 0x58
binary | *size*: 256..65535 | byte string (2 bytes follow) | 0x59
binary | *size*: 65536..4294967295 | byte string (4 bytes follow) | 0x5A
binary | *size*: 4294967296..18446744073709551615 | byte string (8 bytes follow) | 0x5B
Binary values with subtype are mapped to tagged values (0xD8..0xDB)
depending on the subtype, followed by a byte string, see "binary" cells
in the table above.
@note The mapping is **complete** in the sense that any JSON value type
can be converted to a CBOR value.
@note If NaN or Infinity are stored inside a JSON number, they are
serialized properly. This behavior differs from the @ref dump()
function which serializes NaN or Infinity to `null`.
@note The following CBOR types are not used in the conversion:
- UTF-8 strings terminated by "break" (0x7F)
- arrays terminated by "break" (0x9F)
- maps terminated by "break" (0xBF)
- byte strings terminated by "break" (0x5F)
- date/time (0xC0..0xC1)
- bignum (0xC2..0xC3)
- decimal fraction (0xC4)
- bigfloat (0xC5)
- expected conversions (0xD5..0xD7)
- simple values (0xE0..0xF3, 0xF8)
- undefined (0xF7)
- half-precision floats (0xF9)
- break (0xFF)
@param[in] j JSON value to serialize
@return CBOR serialization as byte vector
@complexity Linear in the size of the JSON value @a j.
@liveexample{The example shows the serialization of a JSON value to a byte
vector in CBOR format.,to_cbor}
@sa http://cbor.io
@sa see @ref from_cbor(InputType&&, const bool, const bool, const cbor_tag_handler_t) for the
analogous deserialization
@sa see @ref to_msgpack(const basic_json&) for the related MessagePack format
@sa see @ref to_ubjson(const basic_json&, const bool, const bool) for the
related UBJSON format
@since version 2.0.9; compact representation of floating-point numbers
since version 3.8.0
*/
/// @brief create a CBOR serialization of a given JSON value
/// @sa https://json.nlohmann.me/api/basic_json/to_cbor/
static std::vector<std::uint8_t> to_cbor(const basic_json& j)
{
std::vector<std::uint8_t> result;
@ -21765,94 +21665,22 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
return result;
}
/// @brief create a CBOR serialization of a given JSON value
/// @sa https://json.nlohmann.me/api/basic_json/to_cbor/
static void to_cbor(const basic_json& j, detail::output_adapter<std::uint8_t> o)
{
binary_writer<std::uint8_t>(o).write_cbor(j);
}
/// @brief create a CBOR serialization of a given JSON value
/// @sa https://json.nlohmann.me/api/basic_json/to_cbor/
static void to_cbor(const basic_json& j, detail::output_adapter<char> o)
{
binary_writer<char>(o).write_cbor(j);
}
/*!
@brief create a MessagePack serialization of a given JSON value
Serializes a given JSON value @a j to a byte vector using the MessagePack
serialization format. MessagePack is a binary serialization format which
aims to be more compact than JSON itself, yet more efficient to parse.
The library uses the following mapping from JSON values types to
MessagePack types according to the MessagePack specification:
JSON value type | value/range | MessagePack type | first byte
--------------- | --------------------------------- | ---------------- | ----------
null | `null` | nil | 0xC0
boolean | `true` | true | 0xC3
boolean | `false` | false | 0xC2
number_integer | -9223372036854775808..-2147483649 | int64 | 0xD3
number_integer | -2147483648..-32769 | int32 | 0xD2
number_integer | -32768..-129 | int16 | 0xD1
number_integer | -128..-33 | int8 | 0xD0
number_integer | -32..-1 | negative fixint | 0xE0..0xFF
number_integer | 0..127 | positive fixint | 0x00..0x7F
number_integer | 128..255 | uint 8 | 0xCC
number_integer | 256..65535 | uint 16 | 0xCD
number_integer | 65536..4294967295 | uint 32 | 0xCE
number_integer | 4294967296..18446744073709551615 | uint 64 | 0xCF
number_unsigned | 0..127 | positive fixint | 0x00..0x7F
number_unsigned | 128..255 | uint 8 | 0xCC
number_unsigned | 256..65535 | uint 16 | 0xCD
number_unsigned | 65536..4294967295 | uint 32 | 0xCE
number_unsigned | 4294967296..18446744073709551615 | uint 64 | 0xCF
number_float | *any value representable by a float* | float 32 | 0xCA
number_float | *any value NOT representable by a float* | float 64 | 0xCB
string | *length*: 0..31 | fixstr | 0xA0..0xBF
string | *length*: 32..255 | str 8 | 0xD9
string | *length*: 256..65535 | str 16 | 0xDA
string | *length*: 65536..4294967295 | str 32 | 0xDB
array | *size*: 0..15 | fixarray | 0x90..0x9F
array | *size*: 16..65535 | array 16 | 0xDC
array | *size*: 65536..4294967295 | array 32 | 0xDD
object | *size*: 0..15 | fix map | 0x80..0x8F
object | *size*: 16..65535 | map 16 | 0xDE
object | *size*: 65536..4294967295 | map 32 | 0xDF
binary | *size*: 0..255 | bin 8 | 0xC4
binary | *size*: 256..65535 | bin 16 | 0xC5
binary | *size*: 65536..4294967295 | bin 32 | 0xC6
@note The mapping is **complete** in the sense that any JSON value type
can be converted to a MessagePack value.
@note The following values can **not** be converted to a MessagePack value:
- strings with more than 4294967295 bytes
- byte strings with more than 4294967295 bytes
- arrays with more than 4294967295 elements
- objects with more than 4294967295 elements
@note Any MessagePack output created @ref to_msgpack can be successfully
parsed by @ref from_msgpack.
@note If NaN or Infinity are stored inside a JSON number, they are
serialized properly. This behavior differs from the @ref dump()
function which serializes NaN or Infinity to `null`.
@param[in] j JSON value to serialize
@return MessagePack serialization as byte vector
@complexity Linear in the size of the JSON value @a j.
@liveexample{The example shows the serialization of a JSON value to a byte
vector in MessagePack format.,to_msgpack}
@sa http://msgpack.org
@sa see @ref from_msgpack for the analogous deserialization
@sa see @ref to_cbor(const basic_json& for the related CBOR format
@sa see @ref to_ubjson(const basic_json&, const bool, const bool) for the
related UBJSON format
@since version 2.0.9
*/
/// @brief create a MessagePack serialization of a given JSON value
/// @sa https://json.nlohmann.me/api/basic_json/to_msgpack/
static std::vector<std::uint8_t> to_msgpack(const basic_json& j)
{
std::vector<std::uint8_t> result;
@ -21860,102 +21688,22 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
return result;
}
/// @brief create a MessagePack serialization of a given JSON value
/// @sa https://json.nlohmann.me/api/basic_json/to_msgpack/
static void to_msgpack(const basic_json& j, detail::output_adapter<std::uint8_t> o)
{
binary_writer<std::uint8_t>(o).write_msgpack(j);
}
/// @brief create a MessagePack serialization of a given JSON value
/// @sa https://json.nlohmann.me/api/basic_json/to_msgpack/
static void to_msgpack(const basic_json& j, detail::output_adapter<char> o)
{
binary_writer<char>(o).write_msgpack(j);
}
/*!
@brief create a UBJSON serialization of a given JSON value
Serializes a given JSON value @a j to a byte vector using the UBJSON
(Universal Binary JSON) serialization format. UBJSON aims to be more compact
than JSON itself, yet more efficient to parse.
The library uses the following mapping from JSON values types to
UBJSON types according to the UBJSON specification:
JSON value type | value/range | UBJSON type | marker
--------------- | --------------------------------- | ----------- | ------
null | `null` | null | `Z`
boolean | `true` | true | `T`
boolean | `false` | false | `F`
number_integer | -9223372036854775808..-2147483649 | int64 | `L`
number_integer | -2147483648..-32769 | int32 | `l`
number_integer | -32768..-129 | int16 | `I`
number_integer | -128..127 | int8 | `i`
number_integer | 128..255 | uint8 | `U`
number_integer | 256..32767 | int16 | `I`
number_integer | 32768..2147483647 | int32 | `l`
number_integer | 2147483648..9223372036854775807 | int64 | `L`
number_unsigned | 0..127 | int8 | `i`
number_unsigned | 128..255 | uint8 | `U`
number_unsigned | 256..32767 | int16 | `I`
number_unsigned | 32768..2147483647 | int32 | `l`
number_unsigned | 2147483648..9223372036854775807 | int64 | `L`
number_unsigned | 2147483649..18446744073709551615 | high-precision | `H`
number_float | *any value* | float64 | `D`
string | *with shortest length indicator* | string | `S`
array | *see notes on optimized format* | array | `[`
object | *see notes on optimized format* | map | `{`
@note The mapping is **complete** in the sense that any JSON value type
can be converted to a UBJSON value.
@note The following values can **not** be converted to a UBJSON value:
- strings with more than 9223372036854775807 bytes (theoretical)
@note The following markers are not used in the conversion:
- `Z`: no-op values are not created.
- `C`: single-byte strings are serialized with `S` markers.
@note Any UBJSON output created @ref to_ubjson can be successfully parsed
by @ref from_ubjson.
@note If NaN or Infinity are stored inside a JSON number, they are
serialized properly. This behavior differs from the @ref dump()
function which serializes NaN or Infinity to `null`.
@note The optimized formats for containers are supported: Parameter
@a use_size adds size information to the beginning of a container and
removes the closing marker. Parameter @a use_type further checks
whether all elements of a container have the same type and adds the
type marker to the beginning of the container. The @a use_type
parameter must only be used together with @a use_size = true. Note
that @a use_size = true alone may result in larger representations -
the benefit of this parameter is that the receiving side is
immediately informed on the number of elements of the container.
@note If the JSON data contains the binary type, the value stored is a list
of integers, as suggested by the UBJSON documentation. In particular,
this means that serialization and the deserialization of a JSON
containing binary values into UBJSON and back will result in a
different JSON object.
@param[in] j JSON value to serialize
@param[in] use_size whether to add size annotations to container types
@param[in] use_type whether to add type annotations to container types
(must be combined with @a use_size = true)
@return UBJSON serialization as byte vector
@complexity Linear in the size of the JSON value @a j.
@liveexample{The example shows the serialization of a JSON value to a byte
vector in UBJSON format.,to_ubjson}
@sa http://ubjson.org
@sa see @ref from_ubjson(InputType&&, const bool, const bool) for the
analogous deserialization
@sa see @ref to_cbor(const basic_json& for the related CBOR format
@sa see @ref to_msgpack(const basic_json&) for the related MessagePack format
@since version 3.1.0
*/
/// @brief create a UBJSON serialization of a given JSON value
/// @sa https://json.nlohmann.me/api/basic_json/to_ubjson/
static std::vector<std::uint8_t> to_ubjson(const basic_json& j,
const bool use_size = false,
const bool use_type = false)
@ -21965,75 +21713,24 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
return result;
}
/// @brief create a UBJSON serialization of a given JSON value
/// @sa https://json.nlohmann.me/api/basic_json/to_ubjson/
static void to_ubjson(const basic_json& j, detail::output_adapter<std::uint8_t> o,
const bool use_size = false, const bool use_type = false)
{
binary_writer<std::uint8_t>(o).write_ubjson(j, use_size, use_type);
}
/// @brief create a UBJSON serialization of a given JSON value
/// @sa https://json.nlohmann.me/api/basic_json/to_ubjson/
static void to_ubjson(const basic_json& j, detail::output_adapter<char> o,
const bool use_size = false, const bool use_type = false)
{
binary_writer<char>(o).write_ubjson(j, use_size, use_type);
}
/*!
@brief Serializes the given JSON object `j` to BSON and returns a vector
containing the corresponding BSON-representation.
BSON (Binary JSON) is a binary format in which zero or more ordered key/value pairs are
stored as a single entity (a so-called document).
The library uses the following mapping from JSON values types to BSON types:
JSON value type | value/range | BSON type | marker
--------------- | --------------------------------- | ----------- | ------
null | `null` | null | 0x0A
boolean | `true`, `false` | boolean | 0x08
number_integer | -9223372036854775808..-2147483649 | int64 | 0x12
number_integer | -2147483648..2147483647 | int32 | 0x10
number_integer | 2147483648..9223372036854775807 | int64 | 0x12
number_unsigned | 0..2147483647 | int32 | 0x10
number_unsigned | 2147483648..9223372036854775807 | int64 | 0x12
number_unsigned | 9223372036854775808..18446744073709551615| -- | --
number_float | *any value* | double | 0x01
string | *any value* | string | 0x02
array | *any value* | document | 0x04
object | *any value* | document | 0x03
binary | *any value* | binary | 0x05
@warning The mapping is **incomplete**, since only JSON-objects (and things
contained therein) can be serialized to BSON.
Also, integers larger than 9223372036854775807 cannot be serialized to BSON,
and the keys may not contain U+0000, since they are serialized a
zero-terminated c-strings.
@throw out_of_range.407 if `j.is_number_unsigned() && j.get<std::uint64_t>() > 9223372036854775807`
@throw out_of_range.409 if a key in `j` contains a NULL (U+0000)
@throw type_error.317 if `!j.is_object()`
@pre The input `j` is required to be an object: `j.is_object() == true`.
@note Any BSON output created via @ref to_bson can be successfully parsed
by @ref from_bson.
@param[in] j JSON value to serialize
@return BSON serialization as byte vector
@complexity Linear in the size of the JSON value @a j.
@liveexample{The example shows the serialization of a JSON value to a byte
vector in BSON format.,to_bson}
@sa http://bsonspec.org/spec.html
@sa see @ref from_bson(detail::input_adapter&&, const bool strict) for the
analogous deserialization
@sa see @ref to_ubjson(const basic_json&, const bool, const bool) for the
related UBJSON format
@sa see @ref to_cbor(const basic_json&) for the related CBOR format
@sa see @ref to_msgpack(const basic_json&) for the related MessagePack format
*/
/// @brief create a BSON serialization of a given JSON value
/// @sa https://json.nlohmann.me/api/basic_json/to_bson/
static std::vector<std::uint8_t> to_bson(const basic_json& j)
{
std::vector<std::uint8_t> result;
@ -22041,130 +21738,22 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
return result;
}
/*!
@brief Serializes the given JSON object `j` to BSON and forwards the
corresponding BSON-representation to the given output_adapter `o`.
@param j The JSON object to convert to BSON.
@param o The output adapter that receives the binary BSON representation.
@pre The input `j` shall be an object: `j.is_object() == true`
@sa see @ref to_bson(const basic_json&)
*/
/// @brief create a BSON serialization of a given JSON value
/// @sa https://json.nlohmann.me/api/basic_json/to_bson/
static void to_bson(const basic_json& j, detail::output_adapter<std::uint8_t> o)
{
binary_writer<std::uint8_t>(o).write_bson(j);
}
/*!
@copydoc to_bson(const basic_json&, detail::output_adapter<std::uint8_t>)
*/
/// @brief create a BSON serialization of a given JSON value
/// @sa https://json.nlohmann.me/api/basic_json/to_bson/
static void to_bson(const basic_json& j, detail::output_adapter<char> o)
{
binary_writer<char>(o).write_bson(j);
}
/*!
@brief create a JSON value from an input in CBOR format
Deserializes a given input @a i to a JSON value using the CBOR (Concise
Binary Object Representation) serialization format.
The library maps CBOR types to JSON value types as follows:
CBOR type | JSON value type | first byte
---------------------- | --------------- | ----------
Integer | number_unsigned | 0x00..0x17
Unsigned integer | number_unsigned | 0x18
Unsigned integer | number_unsigned | 0x19
Unsigned integer | number_unsigned | 0x1A
Unsigned integer | number_unsigned | 0x1B
Negative integer | number_integer | 0x20..0x37
Negative integer | number_integer | 0x38
Negative integer | number_integer | 0x39
Negative integer | number_integer | 0x3A
Negative integer | number_integer | 0x3B
Byte string | binary | 0x40..0x57
Byte string | binary | 0x58
Byte string | binary | 0x59
Byte string | binary | 0x5A
Byte string | binary | 0x5B
UTF-8 string | string | 0x60..0x77
UTF-8 string | string | 0x78
UTF-8 string | string | 0x79
UTF-8 string | string | 0x7A
UTF-8 string | string | 0x7B
UTF-8 string | string | 0x7F
array | array | 0x80..0x97
array | array | 0x98
array | array | 0x99
array | array | 0x9A
array | array | 0x9B
array | array | 0x9F
map | object | 0xA0..0xB7
map | object | 0xB8
map | object | 0xB9
map | object | 0xBA
map | object | 0xBB
map | object | 0xBF
False | `false` | 0xF4
True | `true` | 0xF5
Null | `null` | 0xF6
Half-Precision Float | number_float | 0xF9
Single-Precision Float | number_float | 0xFA
Double-Precision Float | number_float | 0xFB
@warning The mapping is **incomplete** in the sense that not all CBOR
types can be converted to a JSON value. The following CBOR types
are not supported and will yield parse errors (parse_error.112):
- date/time (0xC0..0xC1)
- bignum (0xC2..0xC3)
- decimal fraction (0xC4)
- bigfloat (0xC5)
- expected conversions (0xD5..0xD7)
- simple values (0xE0..0xF3, 0xF8)
- undefined (0xF7)
@warning CBOR allows map keys of any type, whereas JSON only allows
strings as keys in object values. Therefore, CBOR maps with keys
other than UTF-8 strings are rejected (parse_error.113).
@note Any CBOR output created @ref to_cbor can be successfully parsed by
@ref from_cbor.
@param[in] i an input in CBOR format convertible to an input adapter
@param[in] strict whether to expect the input to be consumed until EOF
(true by default)
@param[in] allow_exceptions whether to throw exceptions in case of a
parse error (optional, true by default)
@param[in] tag_handler how to treat CBOR tags (optional, error by default)
@return deserialized JSON value; in case of a parse error and
@a allow_exceptions set to `false`, the return value will be
value_t::discarded.
@throw parse_error.110 if the given input ends prematurely or the end of
file was not reached when @a strict was set to true
@throw parse_error.112 if unsupported features from CBOR were
used in the given input @a v or if the input is not valid CBOR
@throw parse_error.113 if a string was expected as map key, but not found
@complexity Linear in the size of the input @a i.
@liveexample{The example shows the deserialization of a byte vector in CBOR
format to a JSON value.,from_cbor}
@sa http://cbor.io
@sa see @ref to_cbor(const basic_json&) for the analogous serialization
@sa see @ref from_msgpack(InputType&&, const bool, const bool) for the
related MessagePack format
@sa see @ref from_ubjson(InputType&&, const bool, const bool) for the
related UBJSON format
@since version 2.0.9; parameter @a start_index since 2.1.1; changed to
consume input adapters, removed start_index parameter, and added
@a strict parameter since 3.0.0; added @a allow_exceptions parameter
since 3.2.0; added @a tag_handler parameter since 3.9.0.
*/
/// @brief create a JSON value from an input in CBOR format
/// @sa https://json.nlohmann.me/api/basic_json/from_cbor/
template<typename InputType>
JSON_HEDLEY_WARN_UNUSED_RESULT
static basic_json from_cbor(InputType&& i,
@ -22179,9 +21768,8 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
return res ? result : basic_json(value_t::discarded);
}
/*!
@copydoc from_cbor(InputType&&, const bool, const bool, const cbor_tag_handler_t)
*/
/// @brief create a JSON value from an input in CBOR format
/// @sa https://json.nlohmann.me/api/basic_json/from_cbor/
template<typename IteratorType>
JSON_HEDLEY_WARN_UNUSED_RESULT
static basic_json from_cbor(IteratorType first, IteratorType last,
@ -22223,92 +21811,8 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
return res ? result : basic_json(value_t::discarded);
}
/*!
@brief create a JSON value from an input in MessagePack format
Deserializes a given input @a i to a JSON value using the MessagePack
serialization format.
The library maps MessagePack types to JSON value types as follows:
MessagePack type | JSON value type | first byte
---------------- | --------------- | ----------
positive fixint | number_unsigned | 0x00..0x7F
fixmap | object | 0x80..0x8F
fixarray | array | 0x90..0x9F
fixstr | string | 0xA0..0xBF
nil | `null` | 0xC0
false | `false` | 0xC2
true | `true` | 0xC3
float 32 | number_float | 0xCA
float 64 | number_float | 0xCB
uint 8 | number_unsigned | 0xCC
uint 16 | number_unsigned | 0xCD
uint 32 | number_unsigned | 0xCE
uint 64 | number_unsigned | 0xCF
int 8 | number_integer | 0xD0
int 16 | number_integer | 0xD1
int 32 | number_integer | 0xD2
int 64 | number_integer | 0xD3
str 8 | string | 0xD9
str 16 | string | 0xDA
str 32 | string | 0xDB
array 16 | array | 0xDC
array 32 | array | 0xDD
map 16 | object | 0xDE
map 32 | object | 0xDF
bin 8 | binary | 0xC4
bin 16 | binary | 0xC5
bin 32 | binary | 0xC6
ext 8 | binary | 0xC7
ext 16 | binary | 0xC8
ext 32 | binary | 0xC9
fixext 1 | binary | 0xD4
fixext 2 | binary | 0xD5
fixext 4 | binary | 0xD6
fixext 8 | binary | 0xD7
fixext 16 | binary | 0xD8
negative fixint | number_integer | 0xE0-0xFF
@note Any MessagePack output created @ref to_msgpack can be successfully
parsed by @ref from_msgpack.
@param[in] i an input in MessagePack format convertible to an input
adapter
@param[in] strict whether to expect the input to be consumed until EOF
(true by default)
@param[in] allow_exceptions whether to throw exceptions in case of a
parse error (optional, true by default)
@return deserialized JSON value; in case of a parse error and
@a allow_exceptions set to `false`, the return value will be
value_t::discarded.
@throw parse_error.110 if the given input ends prematurely or the end of
file was not reached when @a strict was set to true
@throw parse_error.112 if unsupported features from MessagePack were
used in the given input @a i or if the input is not valid MessagePack
@throw parse_error.113 if a string was expected as map key, but not found
@complexity Linear in the size of the input @a i.
@liveexample{The example shows the deserialization of a byte vector in
MessagePack format to a JSON value.,from_msgpack}
@sa http://msgpack.org
@sa see @ref to_msgpack(const basic_json&) for the analogous serialization
@sa see @ref from_cbor(InputType&&, const bool, const bool, const cbor_tag_handler_t) for the
related CBOR format
@sa see @ref from_ubjson(InputType&&, const bool, const bool) for
the related UBJSON format
@sa see @ref from_bson(InputType&&, const bool, const bool) for
the related BSON format
@since version 2.0.9; parameter @a start_index since 2.1.1; changed to
consume input adapters, removed start_index parameter, and added
@a strict parameter since 3.0.0; added @a allow_exceptions parameter
since 3.2.0
*/
/// @brief create a JSON value from an input in MessagePack format
/// @sa https://json.nlohmann.me/api/basic_json/from_msgpack/
template<typename InputType>
JSON_HEDLEY_WARN_UNUSED_RESULT
static basic_json from_msgpack(InputType&& i,
@ -22322,9 +21826,8 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
return res ? result : basic_json(value_t::discarded);
}
/*!
@copydoc from_msgpack(InputType&&, const bool, const bool)
*/
/// @brief create a JSON value from an input in MessagePack format
/// @sa https://json.nlohmann.me/api/basic_json/from_msgpack/
template<typename IteratorType>
JSON_HEDLEY_WARN_UNUSED_RESULT
static basic_json from_msgpack(IteratorType first, IteratorType last,
@ -22338,7 +21841,6 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
return res ? result : basic_json(value_t::discarded);
}
template<typename T>
JSON_HEDLEY_WARN_UNUSED_RESULT
JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_msgpack(ptr, ptr + len))
@ -22363,69 +21865,8 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
return res ? result : basic_json(value_t::discarded);
}
/*!
@brief create a JSON value from an input in UBJSON format
Deserializes a given input @a i to a JSON value using the UBJSON (Universal
Binary JSON) serialization format.
The library maps UBJSON types to JSON value types as follows:
UBJSON type | JSON value type | marker
----------- | --------------------------------------- | ------
no-op | *no value, next value is read* | `N`
null | `null` | `Z`
false | `false` | `F`
true | `true` | `T`
float32 | number_float | `d`
float64 | number_float | `D`
uint8 | number_unsigned | `U`
int8 | number_integer | `i`
int16 | number_integer | `I`
int32 | number_integer | `l`
int64 | number_integer | `L`
high-precision number | number_integer, number_unsigned, or number_float - depends on number string | 'H'
string | string | `S`
char | string | `C`
array | array (optimized values are supported) | `[`
object | object (optimized values are supported) | `{`
@note The mapping is **complete** in the sense that any UBJSON value can
be converted to a JSON value.
@param[in] i an input in UBJSON format convertible to an input adapter
@param[in] strict whether to expect the input to be consumed until EOF
(true by default)
@param[in] allow_exceptions whether to throw exceptions in case of a
parse error (optional, true by default)
@return deserialized JSON value; in case of a parse error and
@a allow_exceptions set to `false`, the return value will be
value_t::discarded.
@throw parse_error.110 if the given input ends prematurely or the end of
file was not reached when @a strict was set to true
@throw parse_error.112 if a parse error occurs
@throw parse_error.113 if a string could not be parsed successfully
@complexity Linear in the size of the input @a i.
@liveexample{The example shows the deserialization of a byte vector in
UBJSON format to a JSON value.,from_ubjson}
@sa http://ubjson.org
@sa see @ref to_ubjson(const basic_json&, const bool, const bool) for the
analogous serialization
@sa see @ref from_cbor(InputType&&, const bool, const bool, const cbor_tag_handler_t) for the
related CBOR format
@sa see @ref from_msgpack(InputType&&, const bool, const bool) for
the related MessagePack format
@sa see @ref from_bson(InputType&&, const bool, const bool) for
the related BSON format
@since version 3.1.0; added @a allow_exceptions parameter since 3.2.0
*/
/// @brief create a JSON value from an input in UBJSON format
/// @sa https://json.nlohmann.me/api/basic_json/from_ubjson/
template<typename InputType>
JSON_HEDLEY_WARN_UNUSED_RESULT
static basic_json from_ubjson(InputType&& i,
@ -22439,9 +21880,8 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
return res ? result : basic_json(value_t::discarded);
}
/*!
@copydoc from_ubjson(InputType&&, const bool, const bool)
*/
/// @brief create a JSON value from an input in UBJSON format
/// @sa https://json.nlohmann.me/api/basic_json/from_ubjson/
template<typename IteratorType>
JSON_HEDLEY_WARN_UNUSED_RESULT
static basic_json from_ubjson(IteratorType first, IteratorType last,
@ -22479,8 +21919,7 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
return res ? result : basic_json(value_t::discarded);
}
/// @brief Create a JSON value from an input in BSON format
/// @brief create a JSON value from an input in BSON format
/// @sa https://json.nlohmann.me/api/basic_json/from_bson/
template<typename InputType>
JSON_HEDLEY_WARN_UNUSED_RESULT
@ -22495,7 +21934,7 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
return res ? result : basic_json(value_t::discarded);
}
/// @brief Create a JSON value from an input in BSON format
/// @brief create a JSON value from an input in BSON format
/// @sa https://json.nlohmann.me/api/basic_json/from_bson/
template<typename IteratorType>
JSON_HEDLEY_WARN_UNUSED_RESULT