45 lines
1.2 KiB
Markdown
45 lines
1.2 KiB
Markdown
# nlohmann::ordered_json_view
|
|
|
|
Defined in header `<nlohmann/json_view.hpp>`
|
|
|
|
```
|
|
using ordered_json_view = basic_json_view<ordered_json, view_mode::read_only>;
|
|
```
|
|
|
|
This type is a [`basic_json_view`](https://json.nlohmann.me/api/basic_json_view/index.md) of a value of an [`ordered_json_document`](https://json.nlohmann.me/api/ordered_json_document/index.md).
|
|
|
|
## Examples
|
|
|
|
Example
|
|
|
|
The example below demonstrates how to use the type `nlohmann::ordered_json_view`.
|
|
|
|
```
|
|
#include <iostream>
|
|
#include <nlohmann/json_view.hpp>
|
|
|
|
int main()
|
|
{
|
|
nlohmann::ordered_json_document doc = nlohmann::ordered_json_document::parse(R"({"z": 1, "a": 2})");
|
|
nlohmann::ordered_json_view v = doc.root();
|
|
|
|
std::cout << std::boolalpha << v.is_object() << ' ' << v.size() << '\n';
|
|
}
|
|
```
|
|
|
|
Output:
|
|
|
|
```
|
|
true 2
|
|
```
|
|
|
|
## See also
|
|
|
|
- [`ordered_json_document`](https://json.nlohmann.me/api/ordered_json_document/index.md) - the document type this view refers into
|
|
- [`json_view`](https://json.nlohmann.me/api/json_view/index.md) - the corresponding view for `json_document`
|
|
- [Zero-copy JSON views](https://json.nlohmann.me/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 unreleased.
|