# Handle overflow and underflow - checked

* checked_add

* [checked_add](https://doc.rust-lang.org/core/primitive.i64.html#method.checked_add)
* Returns and `Option` that, is either the incremented value wrapped in `Some` or `None`.

{% embed include file="src/examples/numbers/handle-overflow-checked-add/src/main.rs" %}

{% embed include file="src/examples/numbers/handle-overflow-checked-add/out.out" %}


