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@@ -27,7 +27,7 @@ vector <|-- binary_t
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By default, binary values are stored as `std::vector<std::uint8_t>`. This type can be changed by providing a template
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parameter to the `basic_json` type. To store binary subtypes, the storage type is extended and exposed as
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`json::binary_t`:
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[`json::binary_t`](../api/basic_json/binary_t.md):
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```cpp
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auto binary = json::binary_t({0xCA, 0xFE, 0xBA, 0xBE});
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@@ -62,21 +62,23 @@ JSON values can be constructed from `json::binary_t`:
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json j = binary;
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```
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Binary values are primitive values just like numbers or strings:
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Binary values are primitive values just like numbers or strings, as reflected by
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[`is_binary()`](../api/basic_json/is_binary.md) and [`is_primitive()`](../api/basic_json/is_primitive.md):
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```cpp
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j.is_binary(); // returns true
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j.is_primitive(); // returns true
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```
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Given a binary JSON value, the `binary_t` can be accessed by reference as via `get_binary()`:
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Given a binary JSON value, the `binary_t` can be accessed by reference via
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[`get_binary()`](../api/basic_json/get_binary.md):
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```cpp
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j.get_binary().has_subtype(); // returns true
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j.get_binary().size(); // returns 4
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```
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For convenience, binary JSON values can be constructed via `json::binary`:
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For convenience, binary JSON values can be constructed via [`json::binary`](../api/basic_json/binary.md):
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```cpp
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auto j2 = json::binary({0xCA, 0xFE, 0xBA, 0xBE}, 23);
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@@ -99,7 +101,7 @@ JSON does not have a binary type, and this library does not introduce a new type
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Instead, binary values are serialized as an object with two keys: `bytes` holds an array of integers, and `subtype`
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is an integer or `null`.
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??? example
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??? example "Example: serialize a binary value to JSON"
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Code:
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@@ -133,7 +135,7 @@ is an integer or `null`.
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[BJData](binary_formats/bjdata.md) neither supports binary values nor subtypes and proposes to serialize binary values
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as an array of uint8 values. The library implements this translation.
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??? example
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??? example "Example: serialize a binary value to BJData"
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Code:
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@@ -192,7 +194,7 @@ as an array of uint8 values. The library implements this translation.
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[BON8](binary_formats/bon8.md) neither supports binary values nor subtypes. The library serializes binary values as an
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array of integers.
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??? example
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??? example "Example: serialize a binary value to BON8"
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Code:
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@@ -227,7 +229,7 @@ array of integers.
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[BSON](binary_formats/bson.md) supports binary values and subtypes. If a subtype is given, it is used and added as an
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unsigned 8-bit integer. If no subtype is given, the generic binary subtype 0x00 is used.
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??? example
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??? example "Example: serialize a binary value to BSON"
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Code:
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@@ -269,7 +271,7 @@ unsigned 8-bit integer. If no subtype is given, the generic binary subtype 0x00
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value will be serialized as byte strings. The library will choose the smallest representation using the length of the
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byte array.
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??? example
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??? example "Example: serialize a binary value to CBOR"
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Code:
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@@ -294,7 +296,9 @@ byte array.
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```
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Note that the subtype is serialized as tag. However, parsing tagged values yield a parse error unless
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`json::cbor_tag_handler_t::ignore` or `json::cbor_tag_handler_t::store` is passed to `json::from_cbor`.
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`json::cbor_tag_handler_t::ignore` or `json::cbor_tag_handler_t::store` is passed to
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[`json::from_cbor`](../api/basic_json/from_cbor.md) (see
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[`cbor_tag_handler_t`](../api/basic_json/cbor_tag_handler_t.md)).
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```json
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{
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@@ -313,7 +317,7 @@ ext32. The subtype is then added as a signed 8-bit integer.
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If no subtype is given, the bin family (bin8, bin16, bin32) is used.
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??? example
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??? example "Example: serialize a binary value to MessagePack"
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Code:
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@@ -353,7 +357,7 @@ If no subtype is given, the bin family (bin8, bin16, bin32) is used.
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[UBJSON](binary_formats/ubjson.md) neither supports binary values nor subtypes and proposes to serialize binary values
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as an array of uint8 values. The library implements this translation.
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??? example
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??? example "Example: serialize a binary value to UBJSON"
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Code:
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