# overf
[
](https://github.com/makcandrov/overf)
[
](https://crates.io/crates/overf)
[
](https://docs.rs/overf)
Define the overflow behavior of mathematical operations within blocks of code. This library provides the macros `checked!`, `overflowing!`, `saturating!`, `propagating!` and `default!`, enabling you to easily manage overflow in nested contexts.
# Features
- **Customizable Overflow Behavior**: Choose between checked, overflowing, and saturating operations for any block of code.
- **Nested Blocks**: Define different overflow behaviors in nested blocks for more granular control.
- **Reset Behavior**: Use the `default!` macro to reset the overflow behavior back to the default.
# Installation
Add the following to your `Cargo.toml`:
```toml
[dependencies]
overf = "0.1"
```
# Usage
```rust
use overf::{checked, overflowing, saturating, default};
fn main() {
checked! {
let result = 1usize + 1usize;
let sum = default! { 2usize + 2usize }; // Use default behavior
let difference = 5usize - 3usize;
// Nested blocks
saturating! {
let total = 100u8 - 200u8;
}
}
overflowing! {
let result = 1usize + usize::MAX;
}
}
```