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json/docs/mkdocs/docs/api/json_pointer/pop_front.md
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trdesilva a0a4e7cc0b Add front methods to json_pointers (implements #4889) (#5152)
* Added front, pop_front, and push_front methods to json_pointers in order to facilitate root-to-leaf traversals of JSON object trees. (#4889)

Signed-off-by: trdesilva <5818730+trdesilva@users.noreply.github.com>

* undid VS autoformatting in irrelevant code

Signed-off-by: trdesilva <5818730+trdesilva@users.noreply.github.com>

* Ran make amalgamate, added navigation to json_pointer's new front methods in mkdocs, and fixed errors in documented complexity for those methods.

Signed-off-by: trdesilva <5818730+trdesilva@users.noreply.github.com>

* Fixed GCC 4.8 compile error caused by const iterators

Signed-off-by: trdesilva <5818730+trdesilva@users.noreply.github.com>

* Fixed another gcc-4.8 compile error

Signed-off-by: trdesilva <5818730+trdesilva@users.noreply.github.com>

* amalgamated

Signed-off-by: trdesilva <5818730+trdesilva@users.noreply.github.com>

---------

Signed-off-by: trdesilva <5818730+trdesilva@users.noreply.github.com>
2026-05-13 07:59:16 +02:00

593 B

nlohmann::json_pointer::pop_front

void pop_front();

Remove the first reference token.

Exceptions

Throws out_of_range.405 if the JSON pointer has no parent.

Complexity

Linear in the number of reference tokens in the json_pointer.

Examples

??? example

The example shows the usage of `pop_front`.
 
```cpp
--8<-- "examples/json_pointer__pop_front.cpp"
```

Output:

```json
--8<-- "examples/json_pointer__pop_front.output"
```

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