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Niels Lohmann
d04f78864c
- API pages for set and push_back of basic_json_document and for the editable aliases; the class overviews name the Editable parameter - type_error.319 on the exceptions page - the feature page explains editing, and the examples show when it helps: a configuration file changed without reformatting it Signed-off-by: Niels Lohmann <mail@nlohmann.me>
1.5 KiB
1.5 KiB
nlohmann::json_editable_document
Defined in header <nlohmann/json_view.hpp>
using json_editable_document = basic_json_document<json, true>;
This type is an editable basic_json_document of the default
json specialization: in addition to everything json_document offers,
set and push_back change values after
parsing, without ever rewriting the source text -- see Edits and
Editing a document.
Examples
??? example
The example below patches two fields of a small configuration document -- changing one and adding another --
and dumps it back out with the member order and the spelling of the untouched number preserved, something a
plain [`json`](json.md) value cannot do.
```cpp
--8<-- "examples/json_editable_document.cpp"
```
Output:
```json
--8<-- "examples/json_editable_document.output"
```
See also
- json_editable_view - a view of a value of a
json_editable_document - json_document - the read-only document this type adds edits to
- ordered_json_editable_document - the corresponding editable document for
ordered_json - Edits - what an edit guarantees
Version history
Since version 3.13.0.