json/api/json_pointer/pop_front.md

nlohmann::json_pointer::pop_front

void pop_front();

Remove the first reference token.

Exception safety

Strong exception safety: if an exception occurs, the original value stays intact.

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"
```

See also

• front return first reference token
• push_front append an unescaped token at the start of the pointer

Version history

• Added in version 3.13.0.