#[lang = "add_assign"]pub trait AddAssign<Rhs = Self> {
fn add_assign(&mut self, rhs: Rhs);
}
The addition assignment operator +=
.
This example creates a Point
struct that implements the AddAssign
trait, and then demonstrates add-assigning to a mutable Point
.
use std::ops::AddAssign;
#[derive(Debug, Copy, Clone, PartialEq)]
struct Point {
x: i32,
y: i32,
}
impl AddAssign for Point {
fn add_assign(&mut self, other: Self) {
*self = Self {
x: self.x + other.x,
y: self.y + other.y,
};
}
}
let mut point = Point { x: 1, y: 0 };
point += Point { x: 2, y: 3 };
assert_eq!(point, Point { x: 3, y: 3 });
Run
Performs the +=
operation.
let mut x: u32 = 12;
x += 1;
assert_eq!(x, 13);
Run
Loading content...impl AddAssign<&'_ Wrapping<i128>> for Wrapping<i128>
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impl AddAssign<&'_ Wrapping<isize>> for Wrapping<isize>
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impl AddAssign<&'_ Wrapping<u128>> for Wrapping<u128>
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impl AddAssign<&'_ Wrapping<usize>> for Wrapping<usize>
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impl AddAssign<&'_ f32> for f32
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impl AddAssign<&'_ f64> for f64
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impl AddAssign<&'_ i8> for i8
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impl AddAssign<&'_ i16> for i16
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impl AddAssign<&'_ i32> for i32
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impl AddAssign<&'_ i64> for i64
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impl AddAssign<&'_ i128> for i128
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impl AddAssign<&'_ isize> for isize
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impl AddAssign<&'_ u8> for u8
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impl AddAssign<&'_ u16> for u16
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impl AddAssign<&'_ u32> for u32
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impl AddAssign<&'_ u64> for u64
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impl AddAssign<&'_ u128> for u128
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impl AddAssign<&'_ usize> for usize
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impl AddAssign<f32> for f32
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impl AddAssign<f64> for f64
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impl AddAssign<i8> for i8
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impl AddAssign<i16> for i16
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impl AddAssign<i32> for i32
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impl AddAssign<i64> for i64
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impl AddAssign<i128> for i128
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impl AddAssign<isize> for isize
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impl AddAssign<u8> for u8
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impl AddAssign<u16> for u16
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impl AddAssign<u32> for u32
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impl AddAssign<u64> for u64
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impl AddAssign<u128> for u128
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impl AddAssign<usize> for usize
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