Niels Lohmann
a47170346a
* docs: new design for the documentation site Apply the brand to the Material for MkDocs site: Inter and JetBrains Mono served by the site (upright and real italic), brand colours, blue header band with the syntax pattern, wordmark in the header, new home page (hero, cards, animated feature tour), 404 page, polish for tabs, search, footer, focus rings, tables and code blocks, and theme features (code copy, previous/next footer, TOC follow, search suggestions). Draw the number railroad diagram, the parser callback events and the iterator illustrations as inline SVGs that follow the light and dark scheme. The generator scripts are in docs/mkdocs/scripts/figures; the feature slideshow (json-light.svg, json-dark.svg, replacing json.gif on the home page) is built by docs/mkdocs/scripts/slideshow. Decision nodes in five flowcharts become hexagons, which need far less room. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * docs: add figures, table captions and a macro chooser - Figures with numbered captions: SAX stepper, json_view layout and edit stepper, exception map, JSON pointer and patch walkers, QA pipeline, scaling and binary size charts, roadmap lanes, release timeline, integration decision tree and namespace builder - Table captions (nj-table-caption) on 9 pages - Compile times: modules and PCH charts, filesystem section, re-measured Figure 1, links between features/modules.md and compile_times.md - Interactive macro chooser for features/arbitrary_types.md - Link check: exclude URLs that answer the plugin with 400/401/419 or are dead (customers.md) Signed-off-by: Niels Lohmann <mail@nlohmann.me> * docs: macro chooser generates adl_serializer for non-default-constructible types Signed-off-by: Niels Lohmann <mail@nlohmann.me> * docs: cross-link concept pages and API pages in See also sections Add See also links in both directions between the concept pages (features, home, integration) and the API pages, write API links in code font, give every entry a comment after a dash, and show the callback event figure on the parser callbacks page. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * docs: address review comments on the new design - Home: add a "Latest release" button - Sponsors: update the list and group it by tier - Features: list all feature pages on the index page - Releases: add highlights per release, link the 4.0 roadmap, add the first commit to the timeline - Exceptions: prefix all example messages with the exception name - API: no code font for format names in the See also links of the to_/from_ pages - Merge Patch: show the document before, the patch, and the result - Replace "--" with typographic dashes, mark external links with an icon, center Mermaid diagrams Signed-off-by: Niels Lohmann <mail@nlohmann.me> --------- Signed-off-by: Niels Lohmann <mail@nlohmann.me>
2.5 KiB
2.5 KiB
nlohmann::basic_json::binary
// (1)
static basic_json binary(const typename binary_t::container_type& init);
static basic_json binary(typename binary_t::container_type&& init);
// (2)
static basic_json binary(const typename binary_t::container_type& init,
typename binary_t::subtype_type subtype);
static basic_json binary(typename binary_t::container_type&& init,
typename binary_t::subtype_type subtype);
- Creates a JSON binary array value from a given binary container.
- Creates a JSON binary array value from a given binary container with subtype.
Binary values are part of various binary formats, such as CBOR, MessagePack, and BSON. This constructor is used to create a value for serialization to those formats.
Parameters
init(in)- container containing bytes to use as a binary type
subtype(in)- subtype to use in CBOR, MessagePack, and BSON
Return value
JSON binary array value
Exception safety
Strong guarantee: if an exception is thrown, there are no changes in the JSON value.
Complexity
Linear in the size of init; constant for typename binary_t::container_type&& init versions.
Notes
Note, this function exists because of the difficulty in correctly specifying the correct template overload in the
standard value ctor, as both JSON arrays and JSON binary arrays are backed with some form of a std::vector. Because
JSON binary arrays are a non-standard extension, it was decided that it would be best to prevent automatic
initialization of a binary array type, for backwards compatibility and so it does not happen on accident.
Examples
??? example
The following code shows how to create a binary value.
```cpp
--8<-- "examples/binary.cpp"
```
Output:
```json
--8<-- "examples/binary.output"
```
See also
- Binary formats - formats that can store binary values
binary_t- type for binary valuesget_binary- get a reference to the stored binary valueis_binary- return whether the value is binarybyte_container_with_subtype- container for binary values with subtype- Binary Values - the article on binary values
Version history
- Added in version 3.8.0.
- Changed the type of
subtypefromstd::uint8_ttobinary_t::subtype_type(std::uint64_t) in version 3.10.0.