1.0.0[][src]Trait core::ops::Add

#[lang = "add"]
pub trait Add<RHS = Self> { type Output;
#[must_use]
fn add(self, rhs: RHS) -> Self::Output; }

The addition operator +.

Note that RHS is 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.

Examples

Addable points

use std::ops::Add;

#[derive(Debug, PartialEq)]
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,
        }
    }
}

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

Implementing Add with generics

Here is an example of the same Point struct implementing the Add trait using generics.

use std::ops::Add;

#[derive(Debug, PartialEq)]
struct Point<T> {
    x: T,
    y: T,
}

// Notice that the implementation uses the associated type `Output`.
impl<T: Add<Output=T>> Add for Point<T> {
    type Output = Point<T>;

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

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

Associated Types

The resulting type after applying the + operator.

Required Methods

Performs the + operation.

Implementors

impl Add<Wrapping<i128>> for Wrapping<i128>
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impl Add<Wrapping<i16>> for Wrapping<i16>
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impl Add<Wrapping<i32>> for Wrapping<i32>
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impl Add<Wrapping<i64>> for Wrapping<i64>
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impl Add<Wrapping<i8>> for Wrapping<i8>
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impl Add<Wrapping<isize>> for Wrapping<isize>
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impl Add<Wrapping<u128>> for Wrapping<u128>
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impl Add<Wrapping<u16>> for Wrapping<u16>
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impl Add<Wrapping<u32>> for Wrapping<u32>
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impl Add<Wrapping<u64>> for Wrapping<u64>
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impl Add<Wrapping<u8>> for Wrapping<u8>
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impl Add<Wrapping<usize>> for Wrapping<usize>
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impl Add<Duration> for Duration
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impl Add<f32> for f32
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impl Add<f64> for f64
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impl Add<i128> for i128
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impl Add<i16> for i16
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impl Add<i32> for i32
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impl Add<i64> for i64
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impl Add<i8> for i8
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impl Add<isize> for isize
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impl Add<u128> for u128
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impl Add<u16> for u16
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impl Add<u32> for u32
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impl Add<u64> for u64
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impl Add<u8> for u8
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impl Add<usize> for usize
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impl<'a> Add<&'a Wrapping<i128>> for Wrapping<i128>
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impl<'a> Add<&'a Wrapping<i16>> for Wrapping<i16>
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impl<'a> Add<&'a Wrapping<i32>> for Wrapping<i32>
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impl<'a> Add<&'a Wrapping<i64>> for Wrapping<i64>
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impl<'a> Add<&'a Wrapping<i8>> for Wrapping<i8>
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impl<'a> Add<&'a Wrapping<isize>> for Wrapping<isize>
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impl<'a> Add<&'a Wrapping<u128>> for Wrapping<u128>
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impl<'a> Add<&'a Wrapping<u16>> for Wrapping<u16>
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impl<'a> Add<&'a Wrapping<u32>> for Wrapping<u32>
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impl<'a> Add<&'a Wrapping<u64>> for Wrapping<u64>
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impl<'a> Add<&'a Wrapping<u8>> for Wrapping<u8>
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impl<'a> Add<&'a Wrapping<usize>> for Wrapping<usize>
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impl<'a> Add<&'a f32> for f32
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impl<'a> Add<&'a f64> for f64
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impl<'a> Add<&'a i128> for i128
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impl<'a> Add<&'a i16> for i16
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impl<'a> Add<&'a i32> for i32
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impl<'a> Add<&'a i64> for i64
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impl<'a> Add<&'a i8> for i8
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impl<'a> Add<&'a isize> for isize
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impl<'a> Add<&'a u128> for u128
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impl<'a> Add<&'a u16> for u16
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impl<'a> Add<&'a u32> for u32
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impl<'a> Add<&'a u64> for u64
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impl<'a> Add<&'a u8> for u8
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impl<'a> Add<&'a usize> for usize
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impl<'a> Add<Wrapping<i128>> for &'a Wrapping<i128>
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impl<'a> Add<Wrapping<i16>> for &'a Wrapping<i16>
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impl<'a> Add<Wrapping<i32>> for &'a Wrapping<i32>
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impl<'a> Add<Wrapping<i64>> for &'a Wrapping<i64>
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impl<'a> Add<Wrapping<i8>> for &'a Wrapping<i8>
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impl<'a> Add<Wrapping<isize>> for &'a Wrapping<isize>
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impl<'a> Add<Wrapping<u128>> for &'a Wrapping<u128>
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impl<'a> Add<Wrapping<u16>> for &'a Wrapping<u16>
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impl<'a> Add<Wrapping<u32>> for &'a Wrapping<u32>
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impl<'a> Add<Wrapping<u64>> for &'a Wrapping<u64>
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impl<'a> Add<Wrapping<u8>> for &'a Wrapping<u8>
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impl<'a> Add<Wrapping<usize>> for &'a Wrapping<usize>
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impl<'a> Add<f32> for &'a f32
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impl<'a> Add<f64> for &'a f64
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impl<'a> Add<i128> for &'a i128
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impl<'a> Add<i16> for &'a i16
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impl<'a> Add<i32> for &'a i32
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impl<'a> Add<i64> for &'a i64
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impl<'a> Add<i8> for &'a i8
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impl<'a> Add<isize> for &'a isize
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impl<'a> Add<u128> for &'a u128
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impl<'a> Add<u16> for &'a u16
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impl<'a> Add<u32> for &'a u32
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impl<'a> Add<u64> for &'a u64
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impl<'a> Add<u8> for &'a u8
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impl<'a> Add<usize> for &'a usize
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impl<'a, 'b> Add<&'a Wrapping<i128>> for &'b Wrapping<i128>
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impl<'a, 'b> Add<&'a Wrapping<i16>> for &'b Wrapping<i16>
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impl<'a, 'b> Add<&'a Wrapping<i32>> for &'b Wrapping<i32>
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impl<'a, 'b> Add<&'a Wrapping<i64>> for &'b Wrapping<i64>
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impl<'a, 'b> Add<&'a Wrapping<i8>> for &'b Wrapping<i8>
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impl<'a, 'b> Add<&'a Wrapping<isize>> for &'b Wrapping<isize>
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impl<'a, 'b> Add<&'a Wrapping<u128>> for &'b Wrapping<u128>
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impl<'a, 'b> Add<&'a Wrapping<u16>> for &'b Wrapping<u16>
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impl<'a, 'b> Add<&'a Wrapping<u32>> for &'b Wrapping<u32>
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impl<'a, 'b> Add<&'a Wrapping<u64>> for &'b Wrapping<u64>
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impl<'a, 'b> Add<&'a Wrapping<u8>> for &'b Wrapping<u8>
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impl<'a, 'b> Add<&'a Wrapping<usize>> for &'b Wrapping<usize>
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impl<'a, 'b> Add<&'a f32> for &'b f32
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impl<'a, 'b> Add<&'a f64> for &'b f64
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impl<'a, 'b> Add<&'a i128> for &'b i128
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impl<'a, 'b> Add<&'a i16> for &'b i16
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impl<'a, 'b> Add<&'a i32> for &'b i32
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impl<'a, 'b> Add<&'a i64> for &'b i64
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impl<'a, 'b> Add<&'a i8> for &'b i8
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impl<'a, 'b> Add<&'a isize> for &'b isize
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impl<'a, 'b> Add<&'a u128> for &'b u128
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impl<'a, 'b> Add<&'a u16> for &'b u16
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impl<'a, 'b> Add<&'a u32> for &'b u32
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impl<'a, 'b> Add<&'a u64> for &'b u64
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impl<'a, 'b> Add<&'a u8> for &'b u8
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impl<'a, 'b> Add<&'a usize> for &'b usize
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