mirror of
https://github.com/nlohmann/json.git
synced 2026-10-03 22:06:59 +01:00
46 lines
880 B
Markdown
46 lines
880 B
Markdown
# <small>nlohmann::json_pointer::</small>pop_back
|
|
|
|
```cpp
|
|
void pop_back();
|
|
```
|
|
|
|
Remove the last reference token.
|
|
|
|
## Exception safety
|
|
|
|
Strong exception safety: if an exception occurs, the original value stays intact.
|
|
|
|
## Exceptions
|
|
|
|
Throws [out_of_range.405](../../home/exceptions.md#jsonexceptionout_of_range405) if the JSON pointer has no parent.
|
|
|
|
## Complexity
|
|
|
|
Constant.
|
|
|
|
## Examples
|
|
|
|
??? example
|
|
|
|
The example shows the usage of `pop_back`.
|
|
|
|
```cpp
|
|
--8<-- "examples/json_pointer__pop_back.cpp"
|
|
```
|
|
|
|
Output:
|
|
|
|
```json
|
|
--8<-- "examples/json_pointer__pop_back.output"
|
|
```
|
|
|
|
## See also
|
|
|
|
- [back](back.md) return last reference token
|
|
- [push_back](push_back.md) append an unescaped token at the end of the pointer
|
|
- [parent_pointer](parent_pointer.md) returns the parent of this JSON pointer
|
|
|
|
## Version history
|
|
|
|
Added in version 3.6.0.
|