std::ops::Add - Rust
Description: API documentation for the Rust `Add` trait in crate `std`.
Keywords: rust, rustlang, rust-lang, Add

# Trait std::ops::Add 1.0.0 [−] [src]

    pub trait Add<RHS = Self> {
        type Output;
        fn add(self, rhs: RHS) -> Self::Output;
    }

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

# Examples

This example creates a `Point` struct that implements the `Add` trait, and then demonstrates adding two `Point`s.

    use std::ops::Add;

    #[derive(Debug)]
    struct Point {
        x: i32,
        y: i32,
    }

    impl Add for Point {
        type Output = Point;

        fn add(self, other: Point) -> Point {
            Point {
                x: self.x + other.x,
                y: self.y + other.y,
            }
        }
    }

    impl PartialEq for Point {
        fn eq(&self, other: &Self) -> bool {
            self.x == other.x && self.y == other.y
        }
    }

    fn main() {
        assert_eq!(Point { x: 1, y: 0 } + Point { x: 2, y: 3 },
                   Point { x: 3, y: 3 });
    }Run

Note that `RHS = Self` by default, but this is not mandatory. For example, std::time::SystemTime implements `Add<Duration>`, which permits operations of the form `SystemTime = SystemTime + Duration`.

## Associated Types

### `type Output`

The resulting type after applying the `+` operator

## Required Methods

### `fn add(self, rhs: RHS) -> Self::Output`

The method for the `+` operator

## Implementors

- `impl<'a> Add<&'a str> for std::borrow::Cow<'a, str>`
- `impl<'a> Add<Cow<'a, str>> for std::borrow::Cow<'a, str>`
- `impl<'a> Add<&'a str> for String`
- `impl Add<Wrapping<usize>> for std::num::Wrapping<usize>`
- `impl Add<Wrapping<u8>> for std::num::Wrapping<u8>`
- `impl Add<Wrapping<u16>> for std::num::Wrapping<u16>`
- `impl Add<Wrapping<u32>> for std::num::Wrapping<u32>`
- `impl Add<Wrapping<u64>> for std::num::Wrapping<u64>`
- `impl Add<Wrapping<isize>> for std::num::Wrapping<isize>`
- `impl Add<Wrapping<i8>> for std::num::Wrapping<i8>`
- `impl Add<Wrapping<i16>> for std::num::Wrapping<i16>`
- `impl Add<Wrapping<i32>> for std::num::Wrapping<i32>`
- `impl Add<Wrapping<i64>> for std::num::Wrapping<i64>`
- `impl<'a> Add<Wrapping<usize>> for &'a Wrapping<usize>`
- `impl<'a> Add<&'a Wrapping<usize>> for std::num::Wrapping<usize>`
- `impl<'a, 'b> Add<&'a Wrapping<usize>> for &'b Wrapping<usize>`
- `impl<'a> Add<Wrapping<u8>> for &'a Wrapping<u8>`
- `impl<'a> Add<&'a Wrapping<u8>> for std::num::Wrapping<u8>`
- `impl<'a, 'b> Add<&'a Wrapping<u8>> for &'b Wrapping<u8>`
- `impl<'a> Add<Wrapping<u16>> for &'a Wrapping<u16>`
- `impl<'a> Add<&'a Wrapping<u16>> for std::num::Wrapping<u16>`
- `impl<'a, 'b> Add<&'a Wrapping<u16>> for &'b Wrapping<u16>`
- `impl<'a> Add<Wrapping<u32>> for &'a Wrapping<u32>`
- `impl<'a> Add<&'a Wrapping<u32>> for std::num::Wrapping<u32>`
- `impl<'a, 'b> Add<&'a Wrapping<u32>> for &'b Wrapping<u32>`
- `impl<'a> Add<Wrapping<u64>> for &'a Wrapping<u64>`
- `impl<'a> Add<&'a Wrapping<u64>> for std::num::Wrapping<u64>`
- `impl<'a, 'b> Add<&'a Wrapping<u64>> for &'b Wrapping<u64>`
- `impl<'a> Add<Wrapping<isize>> for &'a Wrapping<isize>`
- `impl<'a> Add<&'a Wrapping<isize>> for std::num::Wrapping<isize>`
- `impl<'a, 'b> Add<&'a Wrapping<isize>> for &'b Wrapping<isize>`
- `impl<'a> Add<Wrapping<i8>> for &'a Wrapping<i8>`
- `impl<'a> Add<&'a Wrapping<i8>> for std::num::Wrapping<i8>`
- `impl<'a, 'b> Add<&'a Wrapping<i8>> for &'b Wrapping<i8>`
- `impl<'a> Add<Wrapping<i16>> for &'a Wrapping<i16>`
- `impl<'a> Add<&'a Wrapping<i16>> for std::num::Wrapping<i16>`
- `impl<'a, 'b> Add<&'a Wrapping<i16>> for &'b Wrapping<i16>`
- `impl<'a> Add<Wrapping<i32>> for &'a Wrapping<i32>`
- `impl<'a> Add<&'a Wrapping<i32>> for std::num::Wrapping<i32>`
- `impl<'a, 'b> Add<&'a Wrapping<i32>> for &'b Wrapping<i32>`
- `impl<'a> Add<Wrapping<i64>> for &'a Wrapping<i64>`
- `impl<'a> Add<&'a Wrapping<i64>> for std::num::Wrapping<i64>`
- `impl<'a, 'b> Add<&'a Wrapping<i64>> for &'b Wrapping<i64>`
- `impl Add<Wrapping<u128>> for std::num::Wrapping<u128>`
- `impl Add<Wrapping<i128>> for std::num::Wrapping<i128>`
- `impl<'a> Add<Wrapping<u128>> for &'a Wrapping<u128>`
- `impl<'a> Add<&'a Wrapping<u128>> for std::num::Wrapping<u128>`
- `impl<'a, 'b> Add<&'a Wrapping<u128>> for &'b Wrapping<u128>`
- `impl<'a> Add<Wrapping<i128>> for &'a Wrapping<i128>`
- `impl<'a> Add<&'a Wrapping<i128>> for std::num::Wrapping<i128>`
- `impl<'a, 'b> Add<&'a Wrapping<i128>> for &'b Wrapping<i128>`
- `impl Add<usize> for usize`
- `impl Add<u8> for u8`
- `impl Add<u16> for u16`
- `impl Add<u32> for u32`
- `impl Add<u64> for u64`
- `impl Add<isize> for isize`
- `impl Add<i8> for i8`
- `impl Add<i16> for i16`
- `impl Add<i32> for i32`
- `impl Add<i64> for i64`
- `impl Add<f32> for f32`
- `impl Add<f64> for f64`
- `impl<'a> Add<usize> for &'a usize`
- `impl<'a> Add<&'a usize> for usize`
- `impl<'a, 'b> Add<&'a usize> for &'b usize`
- `impl<'a> Add<u8> for &'a u8`
- `impl<'a> Add<&'a u8> for u8`
- `impl<'a, 'b> Add<&'a u8> for &'b u8`
- `impl<'a> Add<u16> for &'a u16`
- `impl<'a> Add<&'a u16> for u16`
- `impl<'a, 'b> Add<&'a u16> for &'b u16`
- `impl<'a> Add<u32> for &'a u32`
- `impl<'a> Add<&'a u32> for u32`
- `impl<'a, 'b> Add<&'a u32> for &'b u32`
- `impl<'a> Add<u64> for &'a u64`
- `impl<'a> Add<&'a u64> for u64`
- `impl<'a, 'b> Add<&'a u64> for &'b u64`
- `impl<'a> Add<isize> for &'a isize`
- `impl<'a> Add<&'a isize> for isize`
- `impl<'a, 'b> Add<&'a isize> for &'b isize`
- `impl<'a> Add<i8> for &'a i8`
- `impl<'a> Add<&'a i8> for i8`
- `impl<'a, 'b> Add<&'a i8> for &'b i8`
- `impl<'a> Add<i16> for &'a i16`
- `impl<'a> Add<&'a i16> for i16`
- `impl<'a, 'b> Add<&'a i16> for &'b i16`
- `impl<'a> Add<i32> for &'a i32`
- `impl<'a> Add<&'a i32> for i32`
- `impl<'a, 'b> Add<&'a i32> for &'b i32`
- `impl<'a> Add<i64> for &'a i64`
- `impl<'a> Add<&'a i64> for i64`
- `impl<'a, 'b> Add<&'a i64> for &'b i64`
- `impl<'a> Add<f32> for &'a f32`
- `impl<'a> Add<&'a f32> for f32`
- `impl<'a, 'b> Add<&'a f32> for &'b f32`
- `impl<'a> Add<f64> for &'a f64`
- `impl<'a> Add<&'a f64> for f64`
- `impl<'a, 'b> Add<&'a f64> for &'b f64`
- `impl Add<u128> for u128`
- `impl Add<i128> for i128`
- `impl<'a> Add<u128> for &'a u128`
- `impl<'a> Add<&'a u128> for u128`
- `impl<'a, 'b> Add<&'a u128> for &'b u128`
- `impl<'a> Add<i128> for &'a i128`
- `impl<'a> Add<&'a i128> for i128`
- `impl<'a, 'b> Add<&'a i128> for &'b i128`
- `impl Add for Duration`
- `impl Add<Duration> for Instant`
- `impl Add<Duration> for SystemTime`

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