Merge branch 'develop' into docs/fix-readme-files-github

# Conflicts:
#	docs/mkdocs/docs/api/basic_json/dump.md

docs/mkdocs/docs/api/adl_serializer/from_json.md

@@ -30,7 +30,8 @@ class (either explicitly or via the conversion operators).
 
 ## Return value
 
-Copy of the JSON value, converted to `ValueType`
+1. (none) -- the converted value is written to the output parameter `val`.
+2. the JSON value `j` converted to `TargetType`
 
 ## Examples
 

docs/mkdocs/docs/api/basic_json/accept.md

@@ -101,6 +101,7 @@ A UTF-8 byte order mark is silently ignored.
 ## See also
 
 - [parse](parse.md) - deserialize from a compatible input
+- [sax_parse](sax_parse.md) - parse input using the SAX interface
 - [operator>>](../operator_gtgt.md) - deserialize from stream
 
 ## Version history
@@ -108,7 +109,7 @@ A UTF-8 byte order mark is silently ignored.
 - Added in version 3.0.0.
 - Ignoring comments via `ignore_comments` added in version 3.9.0.
 - Changed [runtime assertion](../../features/assertions.md) in case of `FILE*` null pointers to exception in version 3.12.0.
-- Added `ignore_trailing_commas` in version 3.12.1.
+- Added `ignore_trailing_commas` in version 3.12.x.
 
 !!! warning "Deprecation"
 

docs/mkdocs/docs/api/basic_json/at.md

@@ -82,6 +82,8 @@ Strong exception safety: if an exception occurs, the original value stays intact
       key of an object which cannot be found. See the example below.
     - Throws [`out_of_range.404`](../../home/exceptions.md#jsonexceptionout_of_range404) if the JSON pointer `ptr` can
       not be resolved. See the example below.
+    - Throws [`out_of_range.410`](../../home/exceptions.md#jsonexceptionout_of_range410) if an array index in the passed
+      JSON pointer `ptr` exceeds the range of `size_type` (e.g., on 32-bit platforms).
 
 ## Complexity
 

docs/mkdocs/docs/api/basic_json/boolean_t.md

@@ -9,7 +9,7 @@ The type used to store JSON booleans.
 [RFC 8259](https://tools.ietf.org/html/rfc8259) implicitly describes a boolean as a type which differentiates the two
 literals `#!json true` and `#!json false`.
 
-To store objects in C++, a type is defined by the template parameter  `BooleanType` which chooses the type to use.
+To store boolean values in C++, a type is defined by the template parameter  `BooleanType` which chooses the type to use.
 
 ## Notes
 

docs/mkdocs/docs/api/basic_json/contains.md

@@ -48,11 +48,7 @@ Strong exception safety: if an exception occurs, the original value stays intact
 
 1. The function does not throw exceptions.
 2. The function does not throw exceptions.
-3. The function can throw the following exceptions:
+3. The function does not throw exceptions.
-    - Throws [`parse_error.106`](../../home/exceptions.md#jsonexceptionparse_error106) if an array index begins with
-      `0`.
-    - Throws [`parse_error.109`](../../home/exceptions.md#jsonexceptionparse_error109) if an array index was not a
-      number.
 
 ## Complexity
 
@@ -111,6 +107,11 @@ Logarithmic in the size of the JSON object.
     --8<-- "examples/contains__json_pointer.output"
     ```
 
+## See also
+
+- [find](find.md) find a value in an object
+- [count](count.md) returns the number of occurrences of a key
+
 ## Version history
 
 1. Added in version 3.11.0.

docs/mkdocs/docs/api/basic_json/count.md

@@ -72,6 +72,11 @@ This method always returns `0` when executed on a JSON type that is not an objec
     --8<-- "examples/count__keytype.c++17.output"
     ```
 
+## See also
+
+- [find](find.md) find a value in an object
+- [contains](contains.md) checks whether a key exists
+
 ## Version history
 
 1. Added in version 3.11.0.

docs/mkdocs/docs/api/basic_json/crbegin.md

@@ -10,7 +10,7 @@ Returns an iterator to the reverse-beginning; that is, the last element.
 
 ## Return value
 
-reverse iterator to the first element
+reverse iterator to the last element
 
 ## Exception safety
 

docs/mkdocs/docs/api/basic_json/crend.md

@@ -25,7 +25,7 @@ Constant.
 
 ??? example
 
-    The following code shows an example for `eend()`.
+    The following code shows an example for `crend()`.
     
     ```cpp
     --8<-- "examples/crend.cpp"

docs/mkdocs/docs/api/basic_json/diff.md

@@ -56,6 +56,9 @@ Currently, only `remove`, `add`, and `replace` operations are generated.
 ## See also
 
 - [RFC 6902 (JSON Patch)](https://tools.ietf.org/html/rfc6902)
+- [patch](patch.md) applies a JSON Patch
+- [patch_inplace](patch_inplace.md) applies a JSON Patch in place
+- [merge_patch](merge_patch.md) applies a JSON Merge Patch
 
 ## Version history
 

docs/mkdocs/docs/api/basic_json/dump.md

@@ -26,7 +26,7 @@ and `ensure_ascii` parameters.
 
 `error_handler` (in)
 :   how to react on decoding errors; there are three possible values (see [`error_handler_t`](error_handler_t.md):
-    `strict` (throws and exception in case a decoding error occurs; default), `replace` (replace invalid UTF-8 sequences
+    `strict` (throws an exception in case a decoding error occurs; default), `replace` (replace invalid UTF-8 sequences
     with U+FFFD), and `ignore` (ignore invalid UTF-8 sequences during serialization; all valid bytes are copied to the
     output unchanged, and invalid bytes are dropped)).
     
@@ -71,6 +71,11 @@ Binary values are serialized as an object containing two keys:
     --8<-- "examples/dump.output"
     ```
 
+## See also
+
+- [to_string](to_string.md) returns a string representation of a JSON value
+- [operator<<](../operator_ltlt.md) serialize to stream
+
 ## Version history
 
 - Added in version 1.0.0.

docs/mkdocs/docs/api/basic_json/emplace.md

@@ -29,6 +29,10 @@ iterators (including the `end()` iterator) and all references to the elements ar
 a pair consisting of an iterator to the inserted element, or the already-existing element if no insertion happened, and
 a `#!cpp bool` denoting whether the insertion took place.
 
+## Exception safety
+
+Strong guarantee: if an exception is thrown, there are no changes to any JSON value.
+
 ## Exceptions
 
 Throws [`type_error.311`](../../home/exceptions.md#jsonexceptiontype_error311) when called on a type other than JSON
@@ -56,6 +60,11 @@ Logarithmic in the size of the container, O(log(`size()`)).
     --8<-- "examples/emplace.output"
     ```
 
+## See also
+
+- [emplace_back](emplace_back.md) add a value to an array
+- [insert](insert.md) add values to an array/object
+
 ## Version history
 
 - Since version 2.0.8.

docs/mkdocs/docs/api/basic_json/erase.md

@@ -101,7 +101,7 @@ Strong exception safety: if an exception occurs, the original value stays intact
 4. See 3.
 5. The function can throw the following exceptions:
     - Throws [`type_error.307`](../../home/exceptions.md#jsonexceptiontype_error307) when called on a type other than
-      JSON object; example: `"cannot use erase() with null"`
+      JSON array; example: `"cannot use erase() with null"`
     - Throws [`out_of_range.401`](../../home/exceptions.md#jsonexceptionout_of_range401) when `idx >= size()`; example:
       `"array index 17 is out of range"`
 
@@ -202,6 +202,11 @@ Strong exception safety: if an exception occurs, the original value stays intact
     --8<-- "examples/erase__size_type.output"
     ```
 
+## See also
+
+- [clear](clear.md) clears the contents
+- [insert](insert.md) add values to an array/object
+
 ## Version history
 
 1. Added in version 1.0.0. Added support for binary types in version 3.8.0.

docs/mkdocs/docs/api/basic_json/find.md

@@ -78,6 +78,7 @@ This method always returns `end()` when executed on a JSON type that is not an o
 
 ## See also
 
+- [count](count.md) returns the number of occurrences of a key
 - [contains](contains.md) checks whether a key exists
 
 ## Version history

docs/mkdocs/docs/api/basic_json/from_bjdata.md

@@ -67,6 +67,8 @@ Strong guarantee: if an exception is thrown, there are no changes in the JSON va
 - 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
+- Throws [out_of_range.408](../../home/exceptions.md#jsonexceptionout_of_range408) if the size of an optimized container
+  or n-dimensional array cannot be represented by `std::size_t`
 
 ## Complexity
 
@@ -88,6 +90,14 @@ Linear in the size of the input.
     --8<-- "examples/from_bjdata.output"
     ```
 
+## See also
+
+- [to_bjdata](to_bjdata.md) create a BJData serialization of a JSON value
+- [from_cbor](from_cbor.md) create a JSON value from an input in CBOR format
+- [from_msgpack](from_msgpack.md) create a JSON value from an input in MessagePack format
+- [from_bson](from_bson.md) create a JSON value from an input in BSON format
+- [from_ubjson](from_ubjson.md) create a JSON value from an input in UBJSON format
+
 ## Version history
 
 - Added in version 3.11.0.

docs/mkdocs/docs/api/basic_json/from_bson.md

@@ -62,8 +62,12 @@ Strong guarantee: if an exception is thrown, there are no changes in the JSON va
 
 ## Exceptions
 
-Throws [`parse_error.114`](../../home/exceptions.md#jsonexceptionparse_error114) if an unsupported BSON record type is
+- Throws [`parse_error.110`](../../home/exceptions.md#jsonexceptionparse_error110) if the given input ends prematurely or
-encountered.
+  the end of the input was not reached when `strict` was set to true
+- Throws [`parse_error.112`](../../home/exceptions.md#jsonexceptionparse_error112) if a parse error occurs (e.g., an
+  invalid string or byte array length)
+- Throws [`parse_error.114`](../../home/exceptions.md#jsonexceptionparse_error114) if an unsupported BSON record type is
+  encountered
 
 ## Complexity
 
@@ -92,6 +96,7 @@ Linear in the size of the input.
 - [from_cbor](from_cbor.md) for the related CBOR format
 - [from_msgpack](from_msgpack.md) for the related MessagePack format
 - [from_ubjson](from_ubjson.md) for the related UBJSON format
+- [from_bjdata](from_bjdata.md) for the related BJData format
 
 ## Version history
 

docs/mkdocs/docs/api/basic_json/from_cbor.md

@@ -96,6 +96,14 @@ Linear in the size of the input.
     --8<-- "examples/from_cbor.output"
     ```
 
+## See also
+
+- [to_cbor](to_cbor.md) create a CBOR serialization of a JSON value
+- [from_msgpack](from_msgpack.md) create a JSON value from an input in MessagePack format
+- [from_bson](from_bson.md) create a JSON value from an input in BSON format
+- [from_ubjson](from_ubjson.md) create a JSON value from an input in UBJSON format
+- [from_bjdata](from_bjdata.md) create a JSON value from an input in BJData format
+
 ## Version history
 
 - Added in version 2.0.9.

docs/mkdocs/docs/api/basic_json/from_msgpack.md

@@ -89,6 +89,14 @@ Linear in the size of the input.
     --8<-- "examples/from_msgpack.output"
     ```
 
+## See also
+
+- [to_msgpack](to_msgpack.md) create a MessagePack serialization of a JSON value
+- [from_cbor](from_cbor.md) create a JSON value from an input in CBOR format
+- [from_bson](from_bson.md) create a JSON value from an input in BSON format
+- [from_ubjson](from_ubjson.md) create a JSON value from an input in UBJSON format
+- [from_bjdata](from_bjdata.md) create a JSON value from an input in BJData format
+
 ## Version history
 
 - Added in version 2.0.9.
@@ -101,7 +109,7 @@ Linear in the size of the input.
     - Overload (2) replaces calls to `from_msgpack` with a pointer and a length as first two parameters, which has been
       deprecated in version 3.8.0. This overload will be removed in version 4.0.0. Please replace all calls like
       `#!cpp from_msgpack(ptr, len, ...);` with `#!cpp from_msgpack(ptr, ptr+len, ...);`.
-    - Overload (2) replaces calls to `from_cbor` with a pair of iterators as their first parameter, which has been
+    - Overload (2) replaces calls to `from_msgpack` with a pair of iterators as their first parameter, which has been
       deprecated in version 3.8.0. This overload will be removed in version 4.0.0. Please replace all calls like
       `#!cpp from_msgpack({ptr, ptr+len}, ...);` with `#!cpp from_msgpack(ptr, ptr+len, ...);`.
 

docs/mkdocs/docs/api/basic_json/from_ubjson.md

@@ -65,8 +65,10 @@ Strong guarantee: if an exception is thrown, there are no changes in the JSON va
 - Throws [parse_error.110](../../home/exceptions.md#jsonexceptionparse_error110) if the given input ends prematurely or
   the end of the 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 
+- Throws [parse_error.113](../../home/exceptions.md#jsonexceptionparse_error113) if a string could not be parsed
   successfully
+- Throws [out_of_range.408](../../home/exceptions.md#jsonexceptionout_of_range408) if the size of an optimized container
+  or n-dimensional array cannot be represented by `std::size_t`
 
 ## Complexity
 
@@ -88,6 +90,14 @@ Linear in the size of the input.
     --8<-- "examples/from_ubjson.output"
     ```
 
+## See also
+
+- [to_ubjson](to_ubjson.md) create a UBJSON serialization of a JSON value
+- [from_cbor](from_cbor.md) create a JSON value from an input in CBOR format
+- [from_msgpack](from_msgpack.md) create a JSON value from an input in MessagePack format
+- [from_bson](from_bson.md) create a JSON value from an input in BSON format
+- [from_bjdata](from_bjdata.md) create a JSON value from an input in BJData format
+
 ## Version history
 
 - Added in version 3.1.0.

docs/mkdocs/docs/api/basic_json/get.md

@@ -88,6 +88,11 @@ constexpr const PointerType get_ptr() const noexcept;
 
 Depends on what `json_serializer<ValueType>` `from_json()` method throws
 
+## Complexity
+
+Depends on the `json_serializer<ValueType>::from_json()` implementation for overloads (1) and (2); constant for
+overload (3).
+
 ## Notes
 
 !!! danger "Undefined behavior for pointers"
@@ -144,6 +149,13 @@ Depends on what `json_serializer<ValueType>` `from_json()` method throws
     --8<-- "examples/get__PointerType.output"
     ```
 
+## See also
+
+- [get_to](get_to.md) convert and write into a passed value
+- [get_ptr](get_ptr.md) get a pointer to the stored value
+- [get_ref](get_ref.md) get a reference to the stored value
+- [operator ValueType](operator_ValueType.md) get a value via implicit conversion
+
 ## Version history
 
 1. Since version 2.1.0.

docs/mkdocs/docs/api/basic_json/get_binary.md

@@ -40,6 +40,11 @@ Constant.
     --8<-- "examples/get_binary.output"
     ```
 
+## See also
+
+- [get](get.md) get a value (explicit conversion)
+- [get_ref](get_ref.md) get a reference to the stored value
+
 ## Version history
 
 - Added in version 3.8.0.

docs/mkdocs/docs/api/basic_json/get_to.md

@@ -34,6 +34,10 @@ the input parameter, allowing chaining calls
 
 Depends on what `json_serializer<ValueType>` `from_json()` method throws
 
+## Complexity
+
+Depends on the `json_serializer<ValueType>::from_json()` implementation.
+
 ## Examples
 
 ??? example
@@ -53,6 +57,12 @@ Depends on what `json_serializer<ValueType>` `from_json()` method throws
     --8<-- "examples/get_to.output"
     ```
 
+## See also
+
+- [get](get.md) get a value (explicit conversion)
+- [get_ref](get_ref.md) get a reference to the stored value
+- [get_ptr](get_ptr.md) get a pointer to the stored value
+
 ## Version history
 
 - Since version 3.3.0.

docs/mkdocs/docs/api/basic_json/insert.md

@@ -96,8 +96,8 @@ Strong exception safety: if an exception occurs, the original value stays intact
 5. The function can throw the following exceptions:
     - Throws [`type_error.309`](../../home/exceptions.md#jsonexceptiontype_error309) if called on JSON values other than
       objects; example: `"cannot use insert() with string"`
-    - Throws [`invalid_iterator.202`](../../home/exceptions.md#jsonexceptioninvalid_iterator202) if called on an
+    - Throws [`invalid_iterator.202`](../../home/exceptions.md#jsonexceptioninvalid_iterator202) if `first` or `last`
-      iterator which does not belong to the current JSON value; example: `"iterator does not fit current value"`
+      do not point to an object; example: `"iterators first and last must point to objects"`
     - Throws [`invalid_iterator.210`](../../home/exceptions.md#jsonexceptioninvalid_iterator210) if `first` and `last`
       do not belong to the same JSON value; example: `"iterators do not fit"`
 
@@ -181,6 +181,13 @@ Strong exception safety: if an exception occurs, the original value stays intact
     --8<-- "examples/insert__range_object.output"
     ```
 
+## See also
+
+- [emplace](emplace.md) add a value to an object
+- [emplace_back](emplace_back.md) add a value to an array
+- [push_back](push_back.md) add a value to an array/object
+- [update](update.md) merges objects
+
 ## Version history
 
 1. Added in version 1.0.0.

docs/mkdocs/docs/api/basic_json/invalid_iterator.md

@@ -66,6 +66,7 @@ classDiagram
 
 ## See also
 
+- [`exception`](exception.md) for the base class of all exceptions thrown by the library
 - [List of iterator errors](../../home/exceptions.md#iterator-errors)
 - [`parse_error`](parse_error.md) for exceptions indicating a parse error
 - [`type_error`](type_error.md) for exceptions indicating executing a member function with a wrong type

docs/mkdocs/docs/api/basic_json/is_discarded.md

@@ -45,11 +45,13 @@ Constant.
 
     When a value is discarded by a callback function (see [`parser_callback_t`](parser_callback_t.md)) during parsing,
     then it is removed when it is part of a structured value. For instance, if the second value of an array is discarded,
-    instead of `#!json [null, discarded, false]`, the array `#!json [null, false]` is returned. Only if the top-level
+    instead of `#!json [null, discarded, false]`, the array `#!json [null, false]` is returned. If the top-level value
-    value is discarded, the return value of the `parse` call is discarded.
+    itself is discarded by the callback, the `parse` call returns a `#!json null` value.
 
-This function will always be `#!cpp false` for JSON values after parsing. That is, discarded values can only occur
+After a successful parse, this function always returns `#!cpp false`: discarded values can only occur during parsing and
-during parsing, but will be removed when inside a structured value or replaced by null in other cases.
+are either removed when inside a structured value or replaced by `#!json null` at the top level. The exception is parsing
+with `allow_exceptions` set to `#!cpp false`: a parse error then yields a discarded value for which this function returns
+`#!cpp true` (see [`parse`](parse.md)).
 
 ## Examples
 

docs/mkdocs/docs/api/basic_json/is_number.md

@@ -9,7 +9,7 @@ unsigned) and floating-point values.
     
 ## Return value
 
-`#!cpp true` if type is number (regardless whether integer, unsigned integer, or floating-type), `#!cpp false` otherwise.
+`#!cpp true` if type is number (regardless whether integer, unsigned integer, or floating-point), `#!cpp false` otherwise.
 
 ## Exception safety
 

docs/mkdocs/docs/api/basic_json/items.md

@@ -84,6 +84,11 @@ When iterating over an array, `key()` will return the index of the element as st
     --8<-- "examples/items.output"
     ```
 
+## See also
+
+- [begin](begin.md) returns an iterator to the first element
+- [end](end.md) returns an iterator to one past the last element
+
 ## Version history
 
 - Added `iterator_wrapper` in version 3.0.0.

docs/mkdocs/docs/api/basic_json/meta.md

@@ -13,7 +13,7 @@ JSON object holding version information
 
 | key         | description                                                                                                                                                                                                                                                                    |
 |-------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| `compiler`  | Information on the used compiler. It is an object with the following keys: `c++` (the used C++ standard), `family` (the compiler family; possible values are `clang`, `icc`, `gcc`, `ilecpp`, `msvc`, `pgcpp`, `sunpro`, and `unknown`), and `version` (the compiler version). |
+| `compiler`  | Information on the used compiler. It is an object with the following keys: `c++` (the used C++ standard), `family` (the compiler family; possible values are `clang`, `icc`, `gcc`, `ilecpp`, `msvc`, `pgcpp`, `sunpro`, and `unknown`), and `version` (the compiler version). On HP aCC compilers, `compiler` is instead the plain string `hp`. |
 | `copyright` | The copyright line for the library as string.                                                                                                                                                                                                                                  |
 | `name`      | The name of the library as string.                                                                                                                                                                                                                                             |
 | `platform`  | The used platform as string. Possible values are `win32`, `linux`, `apple`, `unix`, and `unknown`.                                                                                                                                                                             |

docs/mkdocs/docs/api/basic_json/number_integer_t.md

@@ -32,7 +32,6 @@ With the default values for `NumberIntegerType` (`std::int64_t`), the default va
 - The restrictions about leading zeros are not enforced in C++. Instead, leading zeros in integer literals lead to an
   interpretation as an octal number. Internally, the value will be stored as a decimal number. For instance, the C++
   integer literal `010` will be serialized to `8`. During deserialization, leading zeros yield an error.
-- Not-a-number (NaN) values will be serialized to `null`.
 
 #### Limits
 

docs/mkdocs/docs/api/basic_json/number_unsigned_t.md

@@ -32,7 +32,6 @@ With the default values for `NumberUnsignedType` (`std::uint64_t`), the default
 - The restrictions about leading zeros are not enforced in C++. Instead, leading zeros in integer literals lead to an
   interpretation as an octal number. Internally, the value will be stored as a decimal number. For instance, the C++
   integer  literal `010` will be serialized to `8`. During deserialization, leading zeros yield an error.
-- Not-a-number (NaN) values will be serialized to `null`.
 
 #### Limits
 
@@ -45,7 +44,7 @@ when used in a constructor. During deserialization, too large or small integer n
 as [`number_integer_t`](number_integer_t.md) or [`number_float_t`](number_float_t.md).
 
 [RFC 8259](https://tools.ietf.org/html/rfc8259) further states:
-> Note that when such software is used, numbers that are integers and are in the range \f$[-2^{53}+1, 2^{53}-1]\f$ are
+> Note that when such software is used, numbers that are integers and are in the range $[-2^{53}+1, 2^{53}-1]$ are
 > interoperable in the sense that implementations will agree exactly on their numeric values.
 
 As this range is a subrange (when considered in conjunction with the `number_integer_t` type) of the exactly supported

docs/mkdocs/docs/api/basic_json/operator+=.md

@@ -50,9 +50,12 @@ invalidates all iterators and all references.
 
 ## Exceptions
 
-All functions can throw the following exception:
+1. Throws [`type_error.308`](../../home/exceptions.md#jsonexceptiontype_error308) when called on a type other than
-  - Throws [`type_error.308`](../../home/exceptions.md#jsonexceptiontype_error308) when called on a type other than
+   JSON array or null; example: `"cannot use push_back() with number"`
-    JSON array or null; example: `"cannot use operator+=() with number"`
+2. Throws [`type_error.308`](../../home/exceptions.md#jsonexceptiontype_error308) when called on a type other than
+   JSON object or null; example: `"cannot use push_back() with number"`
+3. Throws [`type_error.308`](../../home/exceptions.md#jsonexceptiontype_error308) when called on a type other than
+   JSON array or null; example: `"cannot use push_back() with number"`
 
 ## Complexity
 

docs/mkdocs/docs/api/basic_json/operator=.md

@@ -5,7 +5,8 @@ basic_json& operator=(basic_json other) noexcept (
     std::is_nothrow_move_constructible<value_t>::value &&
     std::is_nothrow_move_assignable<value_t>::value &&
     std::is_nothrow_move_constructible<json_value>::value &&
-    std::is_nothrow_move_assignable<json_value>::value
+    std::is_nothrow_move_assignable<json_value>::value &&
+    std::is_nothrow_move_assignable<json_base_class_t>::value
 );
 ```
 
@@ -17,6 +18,10 @@ constructor, destructor, and the `swap()` member function.
 `other` (in)
 :   value to copy from
 
+## Exception safety
+
+Strong guarantee: if an exception is thrown while copying `other`, there are no changes to `#!cpp *this`.
+
 ## Complexity
 
 Linear.
@@ -38,6 +43,11 @@ Linear.
     --8<-- "examples/basic_json__copyassignment.output"
     ```
 
+## See also
+
+- [basic_json](basic_json.md) create a JSON value
+- [swap](swap.md) exchanges the contents of two JSON values
+
 ## Version history
 
 - Added in version 1.0.0.

docs/mkdocs/docs/api/basic_json/operator[].md

@@ -83,6 +83,8 @@ Strong exception safety: if an exception occurs, the original value stays intact
       in the passed JSON pointer `ptr` for the const version.
     - Throws [`out_of_range.404`](../../home/exceptions.md#jsonexceptionout_of_range404) if the JSON pointer `ptr` can
       not be resolved.
+    - Throws [`out_of_range.410`](../../home/exceptions.md#jsonexceptionout_of_range410) if an array index in the passed
+      JSON pointer `ptr` exceeds the range of `size_type` (e.g., on 32-bit platforms).
 
 ## Complexity
 
@@ -95,7 +97,10 @@ Strong exception safety: if an exception occurs, the original value stays intact
 
 !!! danger "Undefined behavior and runtime assertions"
 
-    1. If the element with key `idx` does not exist, the behavior is undefined.
+    The following cases apply to the **const** overloads; the non-const overloads instead insert the missing element
+    (see the notes below).
+
+    1. If the element at index `idx` does not exist, the behavior is undefined.
     2. If the element with key `key` does not exist, the behavior is undefined and is **guarded by a
        [runtime assertion](../../features/assertions.md)**!
 

docs/mkdocs/docs/api/basic_json/operator_ValueType.md

@@ -75,6 +75,10 @@ Linear in the size of the JSON value.
     --8<-- "examples/operator__ValueType.output"
     ```
 
+## See also
+
+- [get](get.md) get a value (explicit conversion)
+
 ## Version history
 
 - Since version 1.0.0.

docs/mkdocs/docs/api/basic_json/operator_eq.md

@@ -20,7 +20,7 @@ class basic_json {
 ```
 
 1. Compares two JSON values for equality according to the following rules:
-    - Two JSON values are equal if (1) neither value is discarded, or (2) they are of the same type and their stored
+    - Two JSON values are equal if (1) neither value is discarded, and (2) they are of the same type and their stored
       values are the same according to their respective `operator==`.
     - Integer and floating-point numbers are automatically converted before comparison.
 
@@ -79,13 +79,13 @@ Linear.
     }
     ```
     
-    Or you can self-defined operator equal function like this:
+    Or you can define your own equality function like this:
     
     ```cpp
     bool my_equal(const_reference lhs, const_reference rhs)
     {
-        const auto lhs_type lhs.type();
+        const auto lhs_type = lhs.type();
-        const auto rhs_type rhs.type();
+        const auto rhs_type = rhs.type();
         if (lhs_type == rhs_type)
         {
             switch(lhs_type)
@@ -162,6 +162,11 @@ Linear.
     --8<-- "examples/operator__equal__nullptr_t.output"
     ```
 
+## See also
+
+- [operator!=](operator_ne.md) compare for inequality
+- [operator<=>](operator_spaceship.md) comparison: 3-way (C++20)
+
 ## Version history
 
 1. Added in version 1.0.0. Added C++20 member functions in version 3.11.0.

docs/mkdocs/docs/api/basic_json/operator_ge.md

@@ -35,7 +35,7 @@ bool operator>=(ScalarType lhs, const const_reference rhs) noexcept;  // (2)
 
 ## Return value
 
-whether `lhs` is less than or equal to `rhs`
+whether `lhs` is greater than or equal to `rhs`
 
 ## Exception safety
 

docs/mkdocs/docs/api/basic_json/other_error.md

@@ -66,6 +66,7 @@ classDiagram
 
 ## See also
 
+- [`exception`](exception.md) for the base class of all exceptions thrown by the library
 - [List of other errors](../../home/exceptions.md#further-exceptions)
 - [`parse_error`](parse_error.md) for exceptions indicating a parse error
 - [`invalid_iterator`](invalid_iterator.md) for exceptions indicating errors with iterators

docs/mkdocs/docs/api/basic_json/out_of_range.md

@@ -67,6 +67,7 @@ classDiagram
 
 ## See also
 
+- [`exception`](exception.md) for the base class of all exceptions thrown by the library
 - [List of out-of-range errors](../../home/exceptions.md#out-of-range)
 - [`parse_error`](parse_error.md) for exceptions indicating a parse error
 - [`invalid_iterator`](invalid_iterator.md) for exceptions indicating errors with iterators

docs/mkdocs/docs/api/basic_json/parse.md

@@ -81,9 +81,6 @@ Strong guarantee: if an exception is thrown, there are no changes in the JSON va
 
 - Throws [`parse_error.101`](../../home/exceptions.md#jsonexceptionparse_error101) in case of an unexpected token, or
   empty input like a null `FILE*` or `char*` pointer.
-- Throws [`parse_error.102`](../../home/exceptions.md#jsonexceptionparse_error102) if `to_unicode` fails or surrogate
-  error.
-- Throws [`parse_error.103`](../../home/exceptions.md#jsonexceptionparse_error103) if `to_unicode` fails.
 
 ## Complexity
 
@@ -95,6 +92,9 @@ super-linear complexity.
 
 A UTF-8 byte order mark is silently ignored.
 
+Invalid Unicode escapes and unpaired surrogates in the input are reported as
+[`parse_error.101`](../../home/exceptions.md#jsonexceptionparse_error101) with a detailed message.
+
 ## Examples
 
 ??? example "Parsing from a character array"
@@ -183,7 +183,7 @@ A UTF-8 byte order mark is silently ignored.
 
 ??? example "Effect of `allow_exceptions` parameter"
 
-    The example below demonstrates the effect of the `allow_exceptions` parameter in the ´parse()` function.
+    The example below demonstrates the effect of the `allow_exceptions` parameter in the `parse()` function.
 
     ```cpp
     --8<-- "examples/parse__allow_exceptions.cpp"
@@ -226,6 +226,7 @@ A UTF-8 byte order mark is silently ignored.
 ## See also
 
 - [accept](accept.md) - check if the input is valid JSON
+- [sax_parse](sax_parse.md) - parse input using the SAX interface
 - [operator>>](../operator_gtgt.md) - deserialize from stream
 
 ## Version history
@@ -234,7 +235,7 @@ A UTF-8 byte order mark is silently ignored.
 - Overload for contiguous containers (1) added in version 2.0.3.
 - Ignoring comments via `ignore_comments` added in version 3.9.0.
 - Changed [runtime assertion](../../features/assertions.md) in case of `FILE*` null pointers to exception in version 3.12.0.
-- Added `ignore_trailing_commas` in version 3.12.1.
+- Added `ignore_trailing_commas` in version 3.12.x.
 
 !!! warning "Deprecation"
 

docs/mkdocs/docs/api/basic_json/parse_error.md

@@ -75,6 +75,7 @@ or the end of file. This also holds true when reading a byte vector for binary f
 
 ## See also
 
+- [`exception`](exception.md) for the base class of all exceptions thrown by the library
 - [List of parse errors](../../home/exceptions.md#parse-errors)
 - [`invalid_iterator`](invalid_iterator.md) for exceptions indicating errors with iterators
 - [`type_error`](type_error.md) for exceptions indicating executing a member function with a wrong type

docs/mkdocs/docs/api/basic_json/parse_event_t.md

@@ -24,6 +24,11 @@ The parser callback distinguishes the following events:
 
 ![Example when certain parse events are triggered](../../images/callback_events.png)
 
+## See also
+
+- [parser_callback_t](parser_callback_t.md) callback function type for the parser
+- [parse](parse.md) deserialize from a compatible input
+
 ## Version history
 
 - Added in version 1.0.0.

docs/mkdocs/docs/api/basic_json/parser_callback_t.md

@@ -68,6 +68,11 @@ the latter case, it is either skipped completely or replaced by an empty discard
     --8<-- "examples/parse__string__parser_callback_t.output"
     ```
 
+## See also
+
+- [parse](parse.md) deserialize from a compatible input
+- [parse_event_t](parse_event_t.md) enumeration of parser events
+
 ## Version history
 
 - Added in version 1.0.0.

docs/mkdocs/docs/api/basic_json/patch.md

@@ -32,7 +32,7 @@ Strong guarantee: if an exception is thrown, there are no changes in the JSON va
   could not be resolved successfully in the current JSON value; example: `"key baz not found"`.
 - Throws [`out_of_range.405`](../../home/exceptions.md#jsonexceptionout_of_range405) if JSON pointer has no parent
   ("add", "remove", "move")
-- Throws [`out_of_range.501`](../../home/exceptions.md#jsonexceptionother_error501) if "test" operation was
+- Throws [`other_error.501`](../../home/exceptions.md#jsonexceptionother_error501) if "test" operation was
   unsuccessful.
 
 ## Complexity

docs/mkdocs/docs/api/basic_json/patch_inplace.md

@@ -1,7 +1,7 @@
 # <small>nlohmann::basic_json::</small>patch_inplace
 
 ```cpp
-void patch_inplace(const basic_json& json_patch) const;
+void patch_inplace(const basic_json& json_patch);
 ```
 
 [JSON Patch](http://jsonpatch.com) defines a JSON document structure for expressing a sequence of operations to apply to
@@ -28,7 +28,7 @@ No guarantees, value may be corrupted by an unsuccessful patch operation.
   could not be resolved successfully in the current JSON value; example: `"key baz not found"`.
 - Throws [`out_of_range.405`](../../home/exceptions.md#jsonexceptionout_of_range405) if JSON pointer has no parent
   ("add", "remove", "move")
-- Throws [`out_of_range.501`](../../home/exceptions.md#jsonexceptionother_error501) if "test" operation was
+- Throws [`other_error.501`](../../home/exceptions.md#jsonexceptionother_error501) if "test" operation was
   unsuccessful.
 
 ## Complexity
@@ -62,7 +62,7 @@ function throws an exception.
 
 - [RFC 6902 (JSON Patch)](https://tools.ietf.org/html/rfc6902)
 - [RFC 6901 (JSON Pointer)](https://tools.ietf.org/html/rfc6901)
-- [patch](patch.md) applies a JSON Merge Patch
+- [patch](patch.md) applies a JSON Patch
 - [merge_patch](merge_patch.md) applies a JSON Merge Patch
 
 ## Version history

docs/mkdocs/docs/api/basic_json/push_back.md

@@ -46,9 +46,12 @@ invalidates all iterators and all references.
 
 ## Exceptions
 
-All functions can throw the following exception:
+1. Throws [`type_error.308`](../../home/exceptions.md#jsonexceptiontype_error308) when called on a type other than
-  - Throws [`type_error.308`](../../home/exceptions.md#jsonexceptiontype_error308) when called on a type other than
+   JSON array or null; example: `"cannot use push_back() with number"`
-    JSON array or null; example: `"cannot use push_back() with number"`
+2. Throws [`type_error.308`](../../home/exceptions.md#jsonexceptiontype_error308) when called on a type other than
+   JSON object or null; example: `"cannot use push_back() with number"`
+3. Throws [`type_error.308`](../../home/exceptions.md#jsonexceptiontype_error308) when called on a type other than
+   JSON array or null; example: `"cannot use push_back() with number"`
 
 ## Complexity
 

docs/mkdocs/docs/api/basic_json/rbegin.md

@@ -11,7 +11,7 @@ Returns an iterator to the reverse-beginning; that is, the last element.
 
 ## Return value
 
-reverse iterator to the first element
+reverse iterator to the last element
 
 ## Exception safety
 

docs/mkdocs/docs/api/basic_json/rend.md

@@ -26,7 +26,7 @@ Constant.
 
 ??? example
 
-    The following code shows an example for `eend()`.
+    The following code shows an example for `rend()`.
     
     ```cpp
     --8<-- "examples/rend.cpp"

docs/mkdocs/docs/api/basic_json/sax_parse.md

@@ -43,10 +43,11 @@ The SAX event lister must follow the interface of [`json_sax`](../json_sax/index
       iterators.
 
 `IteratorType`
-:   Description
+:   a compatible iterator type for overload (2); a pair of character iterators whose `value_type` is an integral type
+    with a size of 1, 2, or 4 bytes (interpreted respectively as UTF-8, UTF-16, and UTF-32)
 
 `SAX`
-:   Description
+:   a class fulfilling the SAX event listener interface; see [`json_sax`](../json_sax/index.md)
 
 ## Parameters
 
@@ -89,9 +90,6 @@ Strong guarantee: if an exception is thrown, there are no changes in the JSON va
 
 - Throws [`parse_error.101`](../../home/exceptions.md#jsonexceptionparse_error101) in case of an unexpected token, or
   empty input like a null `FILE*` or `char*` pointer.
-- Throws [`parse_error.102`](../../home/exceptions.md#jsonexceptionparse_error102) if `to_unicode` fails or surrogate
-  error.
-- Throws [`parse_error.103`](../../home/exceptions.md#jsonexceptionparse_error103) if `to_unicode` fails.
 
 ## Complexity
 
@@ -119,11 +117,16 @@ A UTF-8 byte order mark is silently ignored.
     --8<-- "examples/sax_parse.output"
     ```
 
+## See also
+
+- [parse](parse.md) - deserialize from a compatible input
+- [accept](accept.md) - check if the input is valid JSON
+
 ## Version history
 
 - Added in version 3.2.0.
 - Ignoring comments via `ignore_comments` added in version 3.9.0.
-- Added `ignore_trailing_commas` in version 3.12.1.
+- Added `ignore_trailing_commas` in version 3.12.x.
 
 !!! warning "Deprecation"
 

docs/mkdocs/docs/api/basic_json/std_swap.md

@@ -16,6 +16,14 @@ Exchanges the values of two JSON objects.
 `j2` (in, out)
 :   value to be replaced by `j1`
 
+## Exception safety
+
+No-throw guarantee: this function never throws exceptions.
+
+## Complexity
+
+Constant.
+
 ## Possible implementation
 
 ```cpp

docs/mkdocs/docs/api/basic_json/string_t.md

@@ -9,7 +9,7 @@ The type used to store JSON strings.
 [RFC 8259](https://tools.ietf.org/html/rfc8259) describes JSON strings as follows:
 > A string is a sequence of zero or more Unicode characters.
 
-To store objects in C++, a type is defined by the template parameter described below. Unicode values are split by the
+To store strings in C++, a type is defined by the template parameter described below. Unicode values are split by the
 JSON class into byte-sized characters during deserialization.
 
 ## Template parameters

docs/mkdocs/docs/api/basic_json/swap.md

@@ -2,10 +2,20 @@
 
 ```cpp
 // (1)
-void swap(reference other) noexcept;
+void swap(reference other) noexcept (
+    std::is_nothrow_move_constructible<value_t>::value &&
+    std::is_nothrow_move_assignable<value_t>::value &&
+    std::is_nothrow_move_constructible<json_value>::value &&
+    std::is_nothrow_move_assignable<json_value>::value
+);
 
 // (2)
-void swap(reference left, reference right) noexcept;
+friend void swap(reference left, reference right) noexcept (
+    std::is_nothrow_move_constructible<value_t>::value &&
+    std::is_nothrow_move_assignable<value_t>::value &&
+    std::is_nothrow_move_constructible<json_value>::value &&
+    std::is_nothrow_move_assignable<json_value>::value
+);
 
 // (3)
 void swap(array_t& other);
@@ -56,15 +66,15 @@ void swap(typename binary_t::container_type& other);
 1. No-throw guarantee: this function never throws exceptions.
 2. No-throw guarantee: this function never throws exceptions.
 3. Throws [`type_error.310`](../../home/exceptions.md#jsonexceptiontype_error310) if called on JSON values other than
-   arrays; example: `"cannot use swap() with boolean"`
+   arrays; example: `"cannot use swap(array_t&) with boolean"`
 4. Throws [`type_error.310`](../../home/exceptions.md#jsonexceptiontype_error310) if called on JSON values other than
-   objects; example: `"cannot use swap() with boolean"`
+   objects; example: `"cannot use swap(object_t&) with boolean"`
 5. Throws [`type_error.310`](../../home/exceptions.md#jsonexceptiontype_error310) if called on JSON values other than
-   strings; example: `"cannot use swap() with boolean"`
+   strings; example: `"cannot use swap(string_t&) with boolean"`
 6. Throws [`type_error.310`](../../home/exceptions.md#jsonexceptiontype_error310) if called on JSON values other than
-   binaries; example: `"cannot use swap() with boolean"`
+   binaries; example: `"cannot use swap(binary_t&) with boolean"`
 7. Throws [`type_error.310`](../../home/exceptions.md#jsonexceptiontype_error310) if called on JSON values other than
-   binaries; example: `"cannot use swap() with boolean"`
+   binaries; example: `"cannot use swap(binary_t::container_type&) with boolean"`
 
 ## Complexity
 
@@ -128,7 +138,7 @@ Constant.
     --8<-- "examples/swap__string_t.output"
     ```
 
-??? example "Example: Swap string (6)"
+??? example "Example: Swap binary (6)"
 
     The example below shows how binary values can be swapped with `swap()`.
     
@@ -145,6 +155,8 @@ Constant.
 ## See also
 
 - [std::swap<basic_json\>](std_swap.md)
+- [operator=](operator=.md) copy assignment
+- [basic_json](basic_json.md) create a JSON value
 
 ## Version history
 

docs/mkdocs/docs/api/basic_json/to_bjdata.md

@@ -72,6 +72,14 @@ Linear in the size of the JSON value `j`.
     --8<-- "examples/to_bjdata.output"
     ```
 
+## See also
+
+- [from_bjdata](from_bjdata.md) create a JSON value from an input in BJData format
+- [to_cbor](to_cbor.md) create a CBOR serialization of a JSON value
+- [to_msgpack](to_msgpack.md) create a MessagePack serialization of a JSON value
+- [to_bson](to_bson.md) create a BSON serialization of a JSON value
+- [to_ubjson](to_ubjson.md) create a UBJSON serialization of a JSON value
+
 ## Version history
 
 - Added in version 3.11.0.

docs/mkdocs/docs/api/basic_json/to_bson.md

@@ -34,6 +34,13 @@ The exact mapping and its limitations are described on a [dedicated page](../../
 
 Strong guarantee: if an exception is thrown, there are no changes in the JSON value.
 
+## Exceptions
+
+- Throws [`type_error.317`](../../home/exceptions.md#jsonexceptiontype_error317) if the top-level type of the JSON value
+  is not an object; example: `"to serialize to BSON, top-level type must be object, but is string"`
+- Throws [`out_of_range.409`](../../home/exceptions.md#jsonexceptionout_of_range409) if a key in the JSON object contains
+  a null byte (code point U+0000); example: `"BSON key cannot contain code point U+0000 (at byte 2)"`
+
 ## Complexity
 
 Linear in the size of the JSON value `j`.
@@ -54,6 +61,14 @@ Linear in the size of the JSON value `j`.
     --8<-- "examples/to_bson.output"
     ```
 
+## See also
+
+- [from_bson](from_bson.md) create a JSON value from an input in BSON format
+- [to_cbor](to_cbor.md) create a CBOR serialization of a JSON value
+- [to_msgpack](to_msgpack.md) create a MessagePack serialization of a JSON value
+- [to_ubjson](to_ubjson.md) create a UBJSON serialization of a JSON value
+- [to_bjdata](to_bjdata.md) create a BJData serialization of a JSON value
+
 ## Version history
 
 - Added in version 3.4.0.

docs/mkdocs/docs/api/basic_json/to_cbor.md

@@ -55,6 +55,14 @@ Linear in the size of the JSON value `j`.
     --8<-- "examples/to_cbor.output"
     ```
 
+## See also
+
+- [from_cbor](from_cbor.md) create a JSON value from an input in CBOR format
+- [to_msgpack](to_msgpack.md) create a MessagePack serialization of a JSON value
+- [to_bson](to_bson.md) create a BSON serialization of a JSON value
+- [to_ubjson](to_ubjson.md) create a UBJSON serialization of a JSON value
+- [to_bjdata](to_bjdata.md) create a BJData serialization of a JSON value
+
 ## Version history
 
 - Added in version 2.0.9.

docs/mkdocs/docs/api/basic_json/to_msgpack.md

@@ -54,6 +54,14 @@ Linear in the size of the JSON value `j`.
     --8<-- "examples/to_msgpack.output"
     ```
 
+## See also
+
+- [from_msgpack](from_msgpack.md) create a JSON value from an input in MessagePack format
+- [to_cbor](to_cbor.md) create a CBOR serialization of a JSON value
+- [to_bson](to_bson.md) create a BSON serialization of a JSON value
+- [to_ubjson](to_ubjson.md) create a UBJSON serialization of a JSON value
+- [to_bjdata](to_bjdata.md) create a BJData serialization of a JSON value
+
 ## Version history
 
 - Added in version 2.0.9.

docs/mkdocs/docs/api/basic_json/to_ubjson.md

@@ -65,6 +65,14 @@ Linear in the size of the JSON value `j`.
     --8<-- "examples/to_ubjson.output"
     ```
 
+## See also
+
+- [from_ubjson](from_ubjson.md) create a JSON value from an input in UBJSON format
+- [to_cbor](to_cbor.md) create a CBOR serialization of a JSON value
+- [to_msgpack](to_msgpack.md) create a MessagePack serialization of a JSON value
+- [to_bson](to_bson.md) create a BSON serialization of a JSON value
+- [to_bjdata](to_bjdata.md) create a BJData serialization of a JSON value
+
 ## Version history
 
 - Added in version 3.1.0.

docs/mkdocs/docs/api/basic_json/type_error.md

@@ -67,6 +67,7 @@ classDiagram
 
 ## See also
 
+- [`exception`](exception.md) for the base class of all exceptions thrown by the library
 - [List of type errors](../../home/exceptions.md#type-errors)
 - [`parse_error`](parse_error.md) for exceptions indicating a parse error
 - [`invalid_iterator`](invalid_iterator.md) for exceptions indicating errors with iterators

docs/mkdocs/docs/api/basic_json/unflatten.md

@@ -25,6 +25,10 @@ The function can throw the following exceptions:
 
 - Throws [`type_error.314`](../../home/exceptions.md#jsonexceptiontype_error314) if value is not an object
 - Throws [`type_error.315`](../../home/exceptions.md#jsonexceptiontype_error315) if object values are not primitive
+- Throws [`type_error.313`](../../home/exceptions.md#jsonexceptiontype_error313) if a key (JSON pointer) leads to a
+  conflicting nesting; example: `"invalid value to unflatten"`
+- Throws [`parse_error.109`](../../home/exceptions.md#jsonexceptionparse_error109) if an array index in a key is not a
+  number; example: `"array index 'one' is not a number"`
 
 ## Complexity
 

docs/mkdocs/docs/api/basic_json/update.md

@@ -14,6 +14,8 @@ void update(const_iterator first, const_iterator last, bool merge_objects = fals
 When `merge_objects` is `#!c false` (default), existing keys are overwritten. When `merge_objects` is `#!c true`,
 recursively merges objects with common keys.
 
+If the JSON value is `#!json null`, it is implicitly converted to an empty object before the values are inserted.
+
 The function is motivated by Python's [dict.update](https://docs.python.org/3.6/library/stdtypes.html#dict.update)
 function.
 
@@ -28,8 +30,8 @@ iterators (including the `end()` iterator) and all references to the elements ar
 :   JSON object to read values from
 
 `merge_objects` (in)
-:   when `#!c true`, existing keys are not overwritten, but contents of objects are merged recursively (default:
+:   when `#!c true`, keys that exist in both objects and whose value in the source is itself an object are merged
-    `#!c false`)
+    recursively; all other values are overwritten as usual (default: `#!c false`)
 
 `first` (in)
 :   the beginning of the range of elements to insert
@@ -37,6 +39,10 @@ iterators (including the `end()` iterator) and all references to the elements ar
 `last` (in)
 :   the end of the range of elements to insert
 
+## Exception safety
+
+Basic guarantee: if an exception is thrown during the operation, the JSON value may be partially modified.
+
 ## Exceptions
 
 1. The function can throw the following exceptions:
@@ -45,8 +51,6 @@ iterators (including the `end()` iterator) and all references to the elements ar
 2. The function can throw the following exceptions:
     - Throws [`type_error.312`](../../home/exceptions.md#jsonexceptiontype_error312) if called on JSON values other than
       objects; example: `"cannot use update() with string"`
-    - Throws [`invalid_iterator.202`](../../home/exceptions.md#jsonexceptioninvalid_iterator202) if called on an
-      iterator which does not belong to the current JSON value; example: `"iterator does not fit current value"`
     - Throws [`invalid_iterator.210`](../../home/exceptions.md#jsonexceptioninvalid_iterator210) if `first` and `last`
       do not belong to the same JSON value; example: `"iterators do not fit"`
 
@@ -141,6 +145,11 @@ iterators (including the `end()` iterator) and all references to the elements ar
     }
     ```
 
+## See also
+
+- [insert](insert.md) add values to an array/object
+- [merge_patch](merge_patch.md) applies a JSON Merge Patch
+
 ## Version history
 
 - Added in version 3.0.0.

docs/mkdocs/docs/api/basic_json/value.md

@@ -95,7 +95,7 @@ changes to any JSON value.
     - Throws [`type_error.302`](../../home/exceptions.md#jsonexceptiontype_error302) if `default_value` does not match
       the type of the value at `ptr`
     - Throws [`type_error.306`](../../home/exceptions.md#jsonexceptiontype_error306) if the JSON value is not an object;
-      in that case, using `value()` with a key makes no sense.
+      in that case, using `value()` with a JSON pointer makes no sense.
 
 ## Complexity
 

docs/mkdocs/docs/api/byte_container_with_subtype/index.md

@@ -24,7 +24,7 @@ specific naming scheme in order to override the binary type.
 - [(constructor)](byte_container_with_subtype.md)
 - **operator==** - comparison: equal
 - **operator!=** - comparison: not equal
-- [**set_subtype**](subtype.md) - sets the binary subtype
+- [**set_subtype**](set_subtype.md) - sets the binary subtype
 - [**subtype**](subtype.md) - return the binary subtype
 - [**has_subtype**](has_subtype.md) - return whether the value has a subtype
 - [**clear_subtype**](clear_subtype.md) - clears the binary subtype

docs/mkdocs/docs/api/json_pointer/front.md

@@ -35,3 +35,5 @@ Constant.
     ```
 
 ## Version history
+
+- Added in version 3.12.x.

docs/mkdocs/docs/api/json_pointer/parent_pointer.md

@@ -10,6 +10,10 @@ Returns the parent of this JSON pointer.
 
 Parent of this JSON pointer; in case this JSON pointer is the root, the root itself is returned.
 
+## Exception safety
+
+No-throw guarantee: this function never throws exceptions.
+
 ## Complexity
 
 Linear in the length of the JSON pointer.
@@ -30,6 +34,11 @@ Linear in the length of the JSON pointer.
     --8<-- "examples/json_pointer__parent_pointer.output"
     ```
 
+## See also
+
+- [pop_back](pop_back.md) remove the last reference token
+- [back](back.md) return the last reference token
+
 ## Version history
 
 Added in version 3.6.0.

docs/mkdocs/docs/api/json_pointer/pop_front.md

@@ -31,3 +31,5 @@ Linear in the number of reference tokens in the `json_pointer`.
     ```
 
 ## Version history
+
+- Added in version 3.12.x.

docs/mkdocs/docs/api/json_pointer/push_front.md

@@ -34,3 +34,5 @@ Linear in the number of reference tokens in the `json_pointer`.
     ```
 
 ## Version history
+
+- Added in version 3.12.x.

docs/mkdocs/docs/api/json_sax/start_array.md

@@ -9,7 +9,7 @@ The beginning of an array was read.
 ## Parameters
 
 `elements` (in)
-:   number of object elements or `#!cpp -1` if unknown
+:   number of array elements, or `#!cpp std::numeric_limits<std::size_t>::max()` if unknown
 
 ## Return value
 

docs/mkdocs/docs/api/json_sax/start_object.md

@@ -9,7 +9,7 @@ The beginning of an object was read.
 ## Parameters
 
 `elements` (in)
-:   number of object elements or `#!cpp -1` if unknown
+:   number of object elements, or `#!cpp std::numeric_limits<std::size_t>::max()` if unknown
 
 ## Return value
 

docs/mkdocs/docs/api/macros/json_brace_init_copy_semantics.md

@@ -92,4 +92,4 @@ The default value is `0` (disabled — existing behavior is preserved).
 
 ## Version history
 
-- Added in version 3.12.0.
+- Added in version 3.12.x.

docs/mkdocs/docs/api/macros/json_disable_enum_serialization.md

@@ -122,14 +122,13 @@ The default value is `0`.
 
     void to_json(json& j, const Choice& ch)
     {
-        auto value = j.get<std::string>();
+        if (ch == Choice::first)
-        if (value == "first")
         {
-            ch = Choice::first;
+            j = "first";
         }
-        else if (value == "second")
+        else if (ch == Choice::second)
         {
-            ch = Choice::second;
+            j = "second";
         }
     }
     

docs/mkdocs/docs/api/macros/json_has_cpp_11.md

@@ -1,10 +1,12 @@
-# JSON_HAS_CPP_11, JSON_HAS_CPP_14, JSON_HAS_CPP_17, JSON_HAS_CPP_20
+# JSON_HAS_CPP_11, JSON_HAS_CPP_14, JSON_HAS_CPP_17, JSON_HAS_CPP_20, JSON_HAS_CPP_23, JSON_HAS_CPP_26
 
 ```cpp
 #define JSON_HAS_CPP_11
 #define JSON_HAS_CPP_14
 #define JSON_HAS_CPP_17
 #define JSON_HAS_CPP_20
+#define JSON_HAS_CPP_23
+#define JSON_HAS_CPP_26
 ```
 
 The library targets C++11, but also supports some features introduced in later C++ versions (e.g., `std::string_view`
@@ -20,7 +22,9 @@ The default value is detected based on preprocessor macros such as `#!cpp __cplu
 
 ## Notes
 
-- `#!cpp JSON_HAS_CPP_11` is always defined.
+- When the C++ standard is detected automatically, `#!cpp JSON_HAS_CPP_11` is always defined. When you override the
+  detection by defining one of these macros manually, the automatic detection is skipped entirely, so you should define
+  all applicable macros (including `#!cpp JSON_HAS_CPP_11`) yourself.
 - All macros are undefined outside the library.
 
 ## Examples
@@ -39,3 +43,5 @@ The default value is detected based on preprocessor macros such as `#!cpp __cplu
 ## Version history
 
 - Added in version 3.10.5.
+- Added `JSON_HAS_CPP_23` in version 3.12.0.
+- Added `JSON_HAS_CPP_26` in version 3.12.x.

docs/mkdocs/docs/api/macros/json_has_filesystem.md

@@ -21,7 +21,7 @@ The default value is detected based on the preprocessor macros `#!cpp __cpp_lib_
 
 ## Notes
 
-- Note that older compilers or older versions of libstd++ also require the library `stdc++fs` to be linked to for
+- Note that older compilers or older versions of libstdc++ also require the library `stdc++fs` to be linked to for
   filesystem support.
 - Both macros are undefined outside the library.
 

docs/mkdocs/docs/api/macros/json_skip_library_version_check.md

@@ -24,6 +24,17 @@ By default, the macro is not defined.
 
 ## Examples
 
+??? example
+
+    The code below switches off the warning about including a different version of the library.
+
+    ```cpp
+    #define JSON_SKIP_LIBRARY_VERSION_CHECK 1
+    #include <nlohmann/json.hpp>
+
+    ...
+    ```
+
 !!! example
 
     The following warning will be shown in case a different version of the library was already included:

docs/mkdocs/docs/api/macros/json_use_legacy_discarded_value_comparison.md

@@ -56,7 +56,7 @@ When the macro is not defined, the library will define it to its default value.
 !!! hint "CMake option"
 
     Legacy comparison can also be controlled with the CMake option
-    [`JSON_LegacyDiscardedValueComparison`](../../integration/cmake.md#json_implicitconversions)
+    [`JSON_LegacyDiscardedValueComparison`](../../integration/cmake.md#json_legacydiscardedvaluecomparison)
     (`OFF` by default) which defines `JSON_USE_LEGACY_DISCARDED_VALUE_COMPARISON` accordingly.
 
 ## Examples
@@ -72,7 +72,7 @@ When the macro is not defined, the library will define it to its default value.
     ...
     ```
 
-### See also
+## See also
 
 - [:simple-cmake: JSON_LegacyDiscardedValueComparison](../../integration/cmake.md#json_legacydiscardedvaluecomparison) - CMake option to control the macro
 

docs/mkdocs/docs/api/macros/nlohmann_define_derived_type.md

@@ -39,7 +39,7 @@ The base type **must** be already serializable/deserializable.
 
 Summary:
 
-| Need access to private members                                   | Need only de-serialization                                       | Allow missing values when de-serializing                         | macro                                                         |
+| Need access to private members                                   | Need only serialization                                          | Allow missing values when de-serializing                         | macro                                                         |
 |------------------------------------------------------------------|------------------------------------------------------------------|------------------------------------------------------------------|---------------------------------------------------------------|
 | <div style="color: green;">:octicons-check-circle-fill-24:</div> | <div style="color: red;">:octicons-x-circle-fill-24:</div>       | <div style="color: red;">:octicons-x-circle-fill-24:</div>       | **NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE**                    |
 | <div style="color: green;">:octicons-check-circle-fill-24:</div> | <div style="color: red;">:octicons-x-circle-fill-24:</div>       | <div style="color: green;">:octicons-check-circle-fill-24:</div> | **NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE_WITH_DEFAULT**       |
@@ -160,10 +160,10 @@ void to_json(BasicJsonType& j, const B& b) {
 ## See also
 
 - [NLOHMANN_DEFINE_TYPE_INTRUSIVE / NLOHMANN_DEFINE_TYPE_INTRUSIVE_WITH_DEFAULT / 
-  NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE_ONLY_SERIALIZE](nlohmann_define_type_intrusive.md)
+  NLOHMANN_DEFINE_TYPE_INTRUSIVE_ONLY_SERIALIZE](nlohmann_define_type_intrusive.md)
   for similar macros that can be defined _inside_ a non-derived type.
 - [NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE / NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_WITH_DEFAULT / 
-  NLOHMANN_DEFINE_DERIVED_TYPE_NON_INTRUSIVE_ONLY_SERIALIZE](nlohmann_define_type_non_intrusive.md)
+  NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_ONLY_SERIALIZE](nlohmann_define_type_non_intrusive.md)
   for similar macros that can be defined _outside_ a non-derived type.
 - [Arbitrary Type Conversions](../../features/arbitrary_types.md) for an overview.
 

docs/mkdocs/docs/api/macros/nlohmann_define_type_intrusive.md

@@ -21,7 +21,7 @@ parameter is the name of the class/struct, and all remaining parameters name the
 
 Summary:
 
-| Need access to private members                                   | Need only de-serialization                                       | Allow missing values when de-serializing                         | macro                                                 |
+| Need access to private members                                   | Need only serialization                                          | Allow missing values when de-serializing                         | macro                                                 |
 |------------------------------------------------------------------|------------------------------------------------------------------|------------------------------------------------------------------|-------------------------------------------------------|
 | <div style="color: green;">:octicons-check-circle-fill-24:</div> | <div style="color: red;">:octicons-x-circle-fill-24:</div>       | <div style="color: red;">:octicons-x-circle-fill-24:</div>       | **NLOHMANN_DEFINE_TYPE_INTRUSIVE**                    |
 | <div style="color: green;">:octicons-check-circle-fill-24:</div> | <div style="color: red;">:octicons-x-circle-fill-24:</div>       | <div style="color: green;">:octicons-check-circle-fill-24:</div> | **NLOHMANN_DEFINE_TYPE_INTRUSIVE_WITH_DEFAULT**       |

docs/mkdocs/docs/api/macros/nlohmann_define_type_non_intrusive.md

@@ -21,7 +21,7 @@ parameter is the name of the class/struct, and all remaining parameters name the
 
 Summary:
 
-| Need access to private members                                   | Need only de-serialization                                       | Allow missing values when de-serializing                         | macro                                                 |
+| Need access to private members                                   | Need only serialization                                          | Allow missing values when de-serializing                         | macro                                                 |
 |------------------------------------------------------------------|------------------------------------------------------------------|------------------------------------------------------------------|-------------------------------------------------------|
 | <div style="color: red;">:octicons-x-circle-fill-24:</div>       | <div style="color: red;">:octicons-x-circle-fill-24:</div>       | <div style="color: red;">:octicons-x-circle-fill-24:</div>       | **NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE**                |
 | <div style="color: red;">:octicons-x-circle-fill-24:</div>       | <div style="color: red;">:octicons-x-circle-fill-24:</div>       | <div style="color: green;">:octicons-check-circle-fill-24:</div> | **NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_WITH_DEFAULT**   |

docs/mkdocs/docs/api/macros/nlohmann_define_type_with_names.md

@@ -75,4 +75,4 @@ For further information please refer to the corresponding macros without `WITH_N
 
 ## Version history
 
-1. Added in version 3.11.x.
+1. Added in version 3.12.x.

docs/mkdocs/docs/api/macros/nlohmann_json_namespace_begin.md

@@ -21,13 +21,13 @@ The default definitions open and close the `nlohmann` namespace. The precise def
     ```cpp
     namespace nlohmann
     {
-    inline namespace json_abi_v3_11_2
+    inline namespace json_abi_v3_12_0
     {
     ```
 
 2. Default definition of `NLOHMANN_JSON_NAMESPACE_END`:
     ```cpp
-    }  // namespace json_abi_v3_11_2
+    }  // namespace json_abi_v3_12_0
     }  // namespace nlohmann
     ```
 

docs/mkdocs/docs/api/macros/nlohmann_json_serialize_enum_strict.md

@@ -38,7 +38,10 @@ inline void from_json(const BasicJsonType& j, type& e);
 
 !!! important "Important notes"
 
-    - When using [`get<ENUM_TYPE>()`](../basic_json/get.md), undefined JSON values will throw an exception.
+    - Undefined input throws [`out_of_range.410`](../../home/exceptions.md#jsonexceptionout_of_range410) in both
+      directions: when serializing an enum value not listed in the conversions, and when deserializing (e.g., via
+      [`get<ENUM_TYPE>()`](../basic_json/get.md)) a JSON value that matches no conversion; example:
+      `"enum value out of range for <type>"`.
     - If an enum or JSON value is specified in multiple conversions, the first matching conversion from the top of the
       list will be returned when converting to or from JSON. See example 2 below.
 
@@ -99,4 +102,4 @@ inline void from_json(const BasicJsonType& j, type& e);
 
 ## Version history
 
-Added in version 3.12.0.
+Added in version 3.12.x.

docs/mkdocs/docs/api/operator_gtgt.md

@@ -21,8 +21,6 @@ the stream `i`
 ## Exceptions
 
 - Throws [`parse_error.101`](../home/exceptions.md#jsonexceptionparse_error101) in case of an unexpected token.
-- Throws [`parse_error.102`](../home/exceptions.md#jsonexceptionparse_error102) if `to_unicode` fails or surrogate error.
-- Throws [`parse_error.103`](../home/exceptions.md#jsonexceptionparse_error103) if `to_unicode` fails.
 
 ## Complexity
 
@@ -32,6 +30,9 @@ Linear in the length of the input. The parser is a predictive LL(1) parser.
 
 A UTF-8 byte order mark is silently ignored.
 
+Invalid Unicode escapes and unpaired surrogates in the input are reported as
+[`parse_error.101`](../home/exceptions.md#jsonexceptionparse_error101) with a detailed message.
+
 !!! warning "Deprecation"
 
     This function replaces function `#!cpp std::istream& operator<<(basic_json& j, std::istream& i)` which has
@@ -61,4 +62,4 @@ A UTF-8 byte order mark is silently ignored.
 
 ## Version history
 
-- Added in version 1.0.0. Deprecated in version 3.0.0.
+- Added in version 1.0.0.

docs/mkdocs/docs/api/operator_literal_json.md

@@ -60,4 +60,4 @@ Linear.
 
 - Added in version 1.0.0.
 - Moved to namespace `nlohmann::literals::json_literals` in 3.11.0.
-- Added `char8_t*` overload in 3.12.1.
+- Added `char8_t*` overload in 3.12.x.

docs/mkdocs/docs/api/operator_literal_json_pointer.md

@@ -63,4 +63,4 @@ Linear.
 
 - Added in version 2.0.0.
 - Moved to namespace `nlohmann::literals::json_literals` in 3.11.0.
-- Added `char8_t*` overload in 3.12.1.
+- Added `char8_t*` overload in 3.12.x.

docs/mkdocs/docs/features/comments.md

@@ -27,7 +27,7 @@ For more information, see [JSON With Commas and Comments (JWCC)](https://nigelta
     }
     ```
     
-    When calling `parse` without additional argument, a parse error exception is thrown. If `ignore_comments` is set to `#! true`, the comments are ignored during parsing:
+    When calling `parse` without additional argument, a parse error exception is thrown. If `ignore_comments` is set to `#!cpp true`, the comments are ignored during parsing:
 
     ```cpp
     --8<-- "examples/comments.cpp"

docs/mkdocs/docs/features/macros.md

@@ -9,6 +9,14 @@ This macro controls which code is executed for [runtime assertions](assertions.m
 
 See [full documentation of `JSON_ASSERT(x)`](../api/macros/json_assert.md).
 
+## `JSON_BRACE_INIT_COPY_SEMANTICS`
+
+When defined to `1`, single-element brace initialization of a `basic_json` value (e.g., `#!cpp json j{value};`) is
+treated as a copy/move of the element rather than wrapping it in a single-element array. The default value is `0`, which
+preserves the existing behavior.
+
+See [full documentation of `JSON_BRACE_INIT_COPY_SEMANTICS`](../api/macros/json_brace_init_copy_semantics.md).
+
 ## `JSON_CATCH_USER(exception)`
 
 This macro overrides [`#!cpp catch`](https://en.cppreference.com/w/cpp/language/try_catch) calls inside the library.
@@ -44,7 +52,7 @@ The diagnostics positions can also be controlled with the CMake option
 
 See [full documentation of `JSON_DIAGNOSTIC_POSITIONS`](../api/macros/json_diagnostic_positions.md)
 
-## `JSON_HAS_CPP_11`, `JSON_HAS_CPP_14`, `JSON_HAS_CPP_17`, `JSON_HAS_CPP_20`
+## `JSON_HAS_CPP_11`, `JSON_HAS_CPP_14`, `JSON_HAS_CPP_17`, `JSON_HAS_CPP_20`, `JSON_HAS_CPP_23`, `JSON_HAS_CPP_26`
 
 The library targets C++11, but also supports some features introduced in later C++ versions (e.g., `std::string_view`
 support for C++17). For these new features, the library implements some preprocessor checks to determine the C++
@@ -52,7 +60,7 @@ standard. By defining any of these symbols, the internal check is overridden and
 unconditionally assumed. This can be helpful for compilers that only implement parts of the standard and would be
 detected incorrectly.
 
-See [full documentation of `JSON_HAS_CPP_11`, `JSON_HAS_CPP_14`, `JSON_HAS_CPP_17`, and `JSON_HAS_CPP_20`](../api/macros/json_has_cpp_11.md).
+See [full documentation of `JSON_HAS_CPP_11`, `JSON_HAS_CPP_14`, `JSON_HAS_CPP_17`, `JSON_HAS_CPP_20`, `JSON_HAS_CPP_23`, and `JSON_HAS_CPP_26`](../api/macros/json_has_cpp_11.md).
 
 ## `JSON_HAS_FILESYSTEM`, `JSON_HAS_EXPERIMENTAL_FILESYSTEM`
 
@@ -115,11 +123,39 @@ When defined to `0`, implicit conversions are switched off. By default, implicit
 
 See [full documentation of `JSON_USE_IMPLICIT_CONVERSIONS`](../api/macros/json_use_implicit_conversions.md).
 
+## `JSON_USE_GLOBAL_UDLS`
+
+When defined to `1` (default), the user-defined string literals `operator""_json` and `operator""_json_pointer` are
+placed into the global namespace instead of `nlohmann::literals::json_literals`.
+
+See [full documentation of `JSON_USE_GLOBAL_UDLS`](../api/macros/json_use_global_udls.md).
+
+## `JSON_USE_LEGACY_DISCARDED_VALUE_COMPARISON`
+
+When defined to `1`, the library restores the legacy behavior in which a discarded value compared equal to itself. This
+behavior is deprecated and switched off (`0`) by default.
+
+See [full documentation of `JSON_USE_LEGACY_DISCARDED_VALUE_COMPARISON`](../api/macros/json_use_legacy_discarded_value_comparison.md).
+
 ## `NLOHMANN_DEFINE_TYPE_*(...)`, `NLOHMANN_DEFINE_DERIVED_TYPE_*(...)`
 
 The library defines 12 macros to simplify the serialization/deserialization of types. See the page on
 [arbitrary type conversion](arbitrary_types.md#simplify-your-life-with-macros) for a detailed discussion.
 
+## `NLOHMANN_JSON_NAMESPACE`, `NLOHMANN_JSON_NAMESPACE_BEGIN`, `NLOHMANN_JSON_NAMESPACE_END`, `NLOHMANN_JSON_NAMESPACE_NO_VERSION`
+
+These macros relate to the versioned, inline `nlohmann` namespace:
+
+- `NLOHMANN_JSON_NAMESPACE` evaluates to the full name of the `nlohmann` namespace (including the inline ABI namespace).
+- `NLOHMANN_JSON_NAMESPACE_BEGIN` / `NLOHMANN_JSON_NAMESPACE_END` open and close the namespace (for example, to add
+  specializations).
+- `NLOHMANN_JSON_NAMESPACE_NO_VERSION`, when defined to `1`, omits the version component from the inline namespace.
+
+See the [`nlohmann` Namespace](namespace.md) page, and the full documentation of
+[`NLOHMANN_JSON_NAMESPACE`](../api/macros/nlohmann_json_namespace.md),
+[`NLOHMANN_JSON_NAMESPACE_BEGIN` / `NLOHMANN_JSON_NAMESPACE_END`](../api/macros/nlohmann_json_namespace_begin.md), and
+[`NLOHMANN_JSON_NAMESPACE_NO_VERSION`](../api/macros/nlohmann_json_namespace_no_version.md).
+
 ## `NLOHMANN_JSON_SERIALIZE_ENUM(type, ...)`
 
 This macro simplifies the serialization/deserialization of enum types. See
@@ -127,6 +163,9 @@ This macro simplifies the serialization/deserialization of enum types. See
 
 See [full documentation of `NLOHMANN_JSON_SERIALIZE_ENUM`](../api/macros/nlohmann_json_serialize_enum.md).
 
+A strict variant [`NLOHMANN_JSON_SERIALIZE_ENUM_STRICT`](../api/macros/nlohmann_json_serialize_enum_strict.md) throws an
+exception on undefined input instead of falling back to the first mapping.
+
 ## `NLOHMANN_JSON_VERSION_MAJOR`, `NLOHMANN_JSON_VERSION_MINOR`, `NLOHMANN_JSON_VERSION_PATCH`
 
 These macros are defined by the library and contain the version numbers according to

docs/mkdocs/docs/features/object_order.md

@@ -10,7 +10,7 @@ The default type `nlohmann::json` uses a `std::map` to store JSON objects, and t
 
     ```cpp
     #include <iostream>
-    #include "json.hpp"
+    #include <nlohmann/json.hpp>
     
     using json = nlohmann::json;
     

docs/mkdocs/docs/features/parsing/parse_exceptions.md

@@ -70,7 +70,7 @@ The return value indicates whether the parsing should continue, so the function
 
     ```cpp
     #include <iostream>
-    #include "json.hpp"
+    #include <nlohmann/json.hpp>
     
     using json = nlohmann::json;
     

docs/mkdocs/docs/features/trailing_commas.md

@@ -26,7 +26,7 @@ For more information, see [JSON With Commas and Comments (JWCC)](https://nigelta
     }
     ```
     
-    When calling `parse` without additional argument, a parse error exception is thrown. If `ignore_trailing_commas` is set to `#! true`, the trailing commas are ignored during parsing:
+    When calling `parse` without additional argument, a parse error exception is thrown. If `ignore_trailing_commas` is set to `#!cpp true`, the trailing commas are ignored during parsing:
 
     ```cpp
     --8<-- "examples/trailing_commas.cpp"

docs/mkdocs/docs/home/exceptions.md

@@ -870,12 +870,15 @@ Key identifiers to be serialized to BSON cannot contain code point U+0000, since
 
 ### json.exception.out_of_range.410
 
-Undefined json fields cannot be used with [`NLOHMANN_JSON_SERIALIZE_ENUM_STRICT`](../api/macros/nlohmann_json_serialize_enum_strict.md)
+This exception is thrown when an undefined value is used with
+[`NLOHMANN_JSON_SERIALIZE_ENUM_STRICT`](../api/macros/nlohmann_json_serialize_enum_strict.md), or when an array index in
+a JSON pointer exceeds the range of `size_type` (e.g., on 32-bit platforms).
 
 !!! failure "Example message"
 
     ```
     enum value out of range
+    array index 18446744073709551616 exceeds size_type
     ```
 
 ## Further exceptions

docs/mkdocs/docs/integration/cmake.md

@@ -167,7 +167,7 @@ Enable the (incorrect) legacy comparison behavior of discarded JSON values by de
 
 ### `JSON_MultipleHeaders`
 
-Use the non-amalgamated version of the library. This option is `OFF` by default.
+Use the non-amalgamated version of the library. This option is `ON` by default.
 
 ### `JSON_SystemInclude`
 
@@ -176,3 +176,8 @@ Treat the library headers like system headers (i.e., adding `SYSTEM` to the [`ta
 ### `JSON_Valgrind`
 
 Execute the test suite with [Valgrind](https://valgrind.org). This option is `OFF` by default. Depends on `JSON_BuildTests`.
+
+### `NLOHMANN_JSON_BUILD_MODULES`
+
+Build the experimental [C++ module](../features/modules.md) `nlohmann.json` (requires CMake 3.28 or later and C++20).
+This option is `OFF` by default.

docs/mkdocs/docs/integration/migration_guide.md

@@ -198,10 +198,6 @@ conversions with calls to [`get`](../api/basic_json/get.md), [`get_to`](../api/b
       j.get_to(s);
       ```
 
-You can prepare existing code by already defining
-[`JSON_USE_IMPLICIT_CONVERSIONS`](../api/macros/json_use_implicit_conversions.md) to `0` and replace any implicit
-conversions with calls to [`get`](../api/basic_json/get.md).
-
 ## Import namespace `literals` for UDLs
 
 The user-defined string literals [`operator""_json`](../api/operator_literal_json.md) and

docs/mkdocs/docs/integration/package_managers.md

@@ -13,7 +13,7 @@
 ![Nuget](../images/package_managers/nuget.svg){: style="height:1em"} [**NuGet**](#nuget) `nlohmann.json`  
 ![Conda](../images/package_managers/conda.svg){: style="height:1em"} [**Conda**](#conda) `nlohmann_json`  
 ![MacPorts](../images/package_managers/macports.svg){: style="height:1em"}&nbsp;[**MacPorts**](#macports) `nlohmann-json`<br>
-![cpm.cmake](../images/package_managers/CPM.png){: style="height:1em"}&nbsp;[**CPM.cmake**](#cpmcmake) `gh:nlohmann/json`
+![cpm.cmake](../images/package_managers/CPM.png){: style="height:1em"}&nbsp;[**CPM.cmake**](#cpmcmake) `gh:nlohmann/json` &emsp;
 ![xmake](../images/package_managers/xmake.svg){: style="height:1em"}&nbsp;[**xmake**](#xmake) `nlohmann_json`
 </p>
 
@@ -105,7 +105,7 @@ The header can be used directly in your code or via CMake.
 
     - :octicons-tag-24: Available versions: current version and select older versions (see
       [WrapDB](https://mesonbuild.com/Wrapdb-projects.html))
-    - :octicons-rocket-24: The package is update automatically from file
+    - :octicons-rocket-24: The package is updated automatically from file
       [`meson.build`](https://github.com/nlohmann/json/blob/develop/meson.build).
     - :octicons-file-24: File issues at the [library issue tracker](https://github.com/nlohmann/json/issues)
     - :octicons-question-24: [Meson website](https://mesonbuild.com/index.html)
@@ -197,7 +197,7 @@ repository can be referenced within a `MODULE.bazel` by rules such as `archive_o
     - [![ConanCenter package](https://repology.org/badge/version-for-repo/conancenter/nlohmann-json.svg)](https://repology.org/project/nlohmann-json/versions)
     - :octicons-tag-24: Available versions: current version and older versions (see
       [Conan Center](https://conan.io/center/recipes/nlohmann_json))
-    - :octicons-rocket-24: The package is update automatically via
+    - :octicons-rocket-24: The package is updated automatically via
       [this recipe](https://github.com/conan-io/conan-center-index/tree/master/recipes/nlohmann_json).
     - :octicons-file-24: File issues at the [Conan Center issue tracker](https://github.com/conan-io/conan-center-index/issues)
     - :octicons-question-24: [Conan website](https://conan.io)
@@ -603,7 +603,7 @@ conda install -c conda-forge nlohmann_json
         --8<-- "integration/conda/example.cpp"
         ```
 
-    2. Create and activate an anvironment "json`:
+    2. Create and activate an environment `json`:
 
         ```shell
         conda create -n json
@@ -667,7 +667,7 @@ to install the [nlohmann-json](https://ports.macports.org/port/nlohmann-json/) p
         sudo port install nlohmann-json
         ```
 
-    3. Compile the code and pass the Homebrew prefix to the include path such that the library can be found:
+    3. Compile the code and pass the MacPorts prefix to the include path such that the library can be found:
 
         ```sh
         c++ example.cpp -I/opt/local/include -std=c++11 -o example
@@ -709,17 +709,17 @@ to install the [nlohmann-json](https://ports.macports.org/port/nlohmann-json/) p
       - [package's sources (for advanced users)](https://github.com/build2-packaging/nlohmann-json/)
 
     - :octicons-tag-24: Available versions: current version and older versions since `3.7.3` (see [cppget.org](https://cppget.org/nlohmann-json))
-    - :octicons-rocket-24: The package is maintained and published by the `build2` community in [this repository][(https://github.com/build2-packaging/nlohmann-json/](https://github.com/build2-packaging/nlohmann-json/)).
+    - :octicons-rocket-24: The package is maintained and published by the `build2` community in [this repository](https://github.com/build2-packaging/nlohmann-json/).
     - :octicons-file-24: File issues at the [package source repository](https://github.com/build2-packaging/nlohmann-json/issues/)
-    - :octicons-question-24: [`build2` website](https://build2)
+    - :octicons-question-24: [`build2` website](https://build2.org)
 
 Note: [`build2`](https://build2.org) should not be considered as a standalone package-manager. It is a build-system + package manager + project manager, a set of tools that work hand-in-hand. `build2`-based projects do not rely on existing `CMake` scripts and the build scripts defining the project's targets are specific to `build2`.
 
-To use this package in an exising [`build2`](https://build2.org) project, the general steps are:
+To use this package in an existing [`build2`](https://build2.org) project, the general steps are:
 
   1. <details><summary>Make the package available to download from a package repository that provides it.</summary>
 
-      Your project's `repositories.manifest` specifies where the package manager will try to acquire packages by default. Make sure one of the repositories specified in this file provides `nlhomann-json` package.
+      Your project's `repositories.manifest` specifies where the package manager will try to acquire packages by default. Make sure one of the repositories specified in this file provides `nlohmann-json` package.
       The recommended open-source repository is [`cppget.org`](https://cppget.org/).
 
       If the project has been created using [`bdep new`](https://build2.org/bdep/doc/bdep-new.xhtml), `cppget.org` is already specified in `repositories.manifest` but commented, just uncomment these lines:
@@ -740,13 +740,13 @@ To use this package in an exising [`build2`](https://build2.org) project, the ge
        </details>
 
 
-  2. <details><summary>Add this library as dependency of your target that uses it.</summary>
+  3. <details><summary>Add this library as dependency of your target that uses it.</summary>
 
       In the `buildfile` defining the target that will use this library:
       
-        - import the target `lib{json}` from the `nlhomann-json` package, for example:
+        - import the target `lib{json}` from the `nlohmann-json` package, for example:
             ```
-            import nljson = nlhomann-json%lib{json}
+            import nljson = nlohmann-json%lib{json}
             ```
            
         - then add the library's target as requirement for your target using it, for example:
@@ -756,7 +756,7 @@ To use this package in an exising [`build2`](https://build2.org) project, the ge
            
       </details>
 
-  3. <details><summary>Use the library in your project's code and build it.</summary>
+  4. <details><summary>Use the library in your project's code and build it.</summary>
 
       At this point, assuming your project is initialized in a build-configuration, any `b` or `bdep update` command that will update/build the project will also acquire the missing dependency automatically, then build it and link it with your target.
 
@@ -818,7 +818,7 @@ To use this package in an exising [`build2`](https://build2.org) project, the ge
         # build only,
         b
 
-        # or build and test the executable's output, will only work if the `tescript` is correct
+        # or build and test the executable's output, will only work if the `testscript` is correct
         b test
 
         ```

include/nlohmann/detail/input/parser.hpp

@@ -88,9 +88,9 @@ class parser
     @param[in] strict      whether to expect the last token to be EOF
     @param[in,out] result  parsed JSON value
 
-    @throw parse_error.101 in case of an unexpected token
+    @throw parse_error.101 in case of an unexpected token (including invalid
-    @throw parse_error.102 if to_unicode fails or surrogate error
+           unicode escapes and surrogate errors, which are reported with a
-    @throw parse_error.103 if to_unicode fails
+           detailed message)
     */
     void parse(const bool strict, BasicJsonType& result)
     {

single_include/nlohmann/json.hpp

@@ -13337,9 +13337,9 @@ class parser
     @param[in] strict      whether to expect the last token to be EOF
     @param[in,out] result  parsed JSON value
 
-    @throw parse_error.101 in case of an unexpected token
+    @throw parse_error.101 in case of an unexpected token (including invalid
-    @throw parse_error.102 if to_unicode fails or surrogate error
+           unicode escapes and surrogate errors, which are reported with a
-    @throw parse_error.103 if to_unicode fails
+           detailed message)
     */
     void parse(const bool strict, BasicJsonType& result)
     {