mirror of
https://github.com/nlohmann/json.git
synced 2026-11-09 14:01:47 +00:00
Niels Lohmann
6a852ab96d
* Split the json_view feature page into sub-pages
The single features/json_view.md page grew to ~600 lines covering eight
topics. Split it into features/json_view/ with an overview page and
pages for ownership and lifetime, differences from basic_json, reading
values, generic code, editing, and images.
The new differences page collects what was spread over several sections
("What is the same", "What is different", "Duplicate keys", and notes in
the conversion and serialization sections) under one summary table, and
adds the parts of the basic_json interface a view does not have. The
other pages now link to it instead of restating the rules.
Internal links across the documentation point to the new pages.
Signed-off-by: Niels Lohmann <mail@nlohmann.me>
* Docs: fix stale comments and trim repeated text in json_view pages
- fig-jsonview.js/.css: point the header comments at the new pages
- reading.md: views' strings are valid as long as the document (and a
borrowed source text), as lifetime.md says
- reading.md, generic_code.md: link to differences.md instead of
restating the member-order and repeated-key rules
- differences.md: drop the third mention of ordering comparisons, name
rbegin()/rend() in the iterator row
- exceptions.md: link editable documents to editing.md
Signed-off-by: Niels Lohmann <mail@nlohmann.me>
---------
Signed-off-by: Niels Lohmann <mail@nlohmann.me>
36 lines
886 B
Markdown
36 lines
886 B
Markdown
# <small>nlohmann::</small>json_view
|
|
|
|
<small>Defined in header `<nlohmann/json_view.hpp>`</small>
|
|
|
|
```cpp
|
|
using json_view = basic_json_view<json, view_mode::read_only>;
|
|
```
|
|
|
|
This type is a [`basic_json_view`](basic_json_view/index.md) of a value of a [`json_document`](json_document.md).
|
|
|
|
## Examples
|
|
|
|
??? example
|
|
|
|
The example below demonstrates how to use the type `nlohmann::json_view`.
|
|
|
|
```cpp
|
|
--8<-- "examples/json_view.cpp"
|
|
```
|
|
|
|
Output:
|
|
|
|
```json
|
|
--8<-- "examples/json_view.output"
|
|
```
|
|
|
|
## See also
|
|
|
|
- [`json_document`](json_document.md) - the document type this view refers into
|
|
- [`ordered_json_view`](ordered_json_view.md) - the corresponding view for `ordered_json_document`
|
|
- [Zero-copy JSON views](../features/json_view/index.md) - how to parse, inspect and edit a document without building a tree
|
|
|
|
## Version history
|
|
|
|
Added in version 3.13.0.
|