# Trait core::ops::AddAssign 1.8.0 [−] [src]

    pub trait AddAssign<Rhs = Self> {
        fn add_assign(&mut self, Rhs);
    }

The `AddAssign` trait is used to specify the functionality of `+=`.

# Examples

A trivial implementation of `AddAssign`. When `Foo += Foo` happens, it ends up calling `add_assign`, and therefore, `main` prints `Adding!`.

use std::ops::AddAssign; struct Foo; impl AddAssign for Foo { fn add_assign(&mut self, _rhs: Foo) { println!("Adding!"); } } #[allow(unused_assignments)] fn main() { let mut foo = Foo; foo += Foo; }

    use std::ops::AddAssign;

    struct Foo;

    impl AddAssign for Foo {
        fn add_assign(&mut self, _rhs: Foo) {
            println!("Adding!");
        }
    }

    fn main() {
        let mut foo = Foo;
        foo += Foo;
    }

## Required Methods

### `fn add_assign(&mut self, Rhs)`

The method for the `+=` operator

## Implementors

- `impl AddAssign for Wrapping<usize>`
- `impl AddAssign for Wrapping<u8>`
- `impl AddAssign for Wrapping<u16>`
- `impl AddAssign for Wrapping<u32>`
- `impl AddAssign for Wrapping<u64>`
- `impl AddAssign for Wrapping<isize>`
- `impl AddAssign for Wrapping<i8>`
- `impl AddAssign for Wrapping<i16>`
- `impl AddAssign for Wrapping<i32>`
- `impl AddAssign for Wrapping<i64>`
- `impl AddAssign for usize`
- `impl AddAssign for u8`
- `impl AddAssign for u16`
- `impl AddAssign for u32`
- `impl AddAssign for u64`
- `impl AddAssign for isize`
- `impl AddAssign for i8`
- `impl AddAssign for i16`
- `impl AddAssign for i32`
- `impl AddAssign for i64`
- `impl AddAssign for f32`
- `impl AddAssign for f64`

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