pub trait Add<Rhs = Self> {
type Output;
// Required method
fn add(self, rhs: Rhs) -> Self::Output;
}
std
only.Expand description
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
§Add
able points
use std::ops::Add;
#[derive(Debug, Copy, Clone, PartialEq)]
struct Point {
x: i32,
y: i32,
}
impl Add for Point {
type Output = Self;
fn add(self, other: Self) -> Self {
Self {
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 });
§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, Copy, Clone, 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 = Self;
fn add(self, other: Self) -> Self::Output {
Self {
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 });
Required Associated Types§
Required Methods§
Implementors§
1.74.0 · source§impl Add for Saturating<i8>
impl Add for Saturating<i8>
type Output = Saturating<i8>
1.74.0 · source§impl Add for Saturating<i16>
impl Add for Saturating<i16>
type Output = Saturating<i16>
1.74.0 · source§impl Add for Saturating<i32>
impl Add for Saturating<i32>
type Output = Saturating<i32>
1.74.0 · source§impl Add for Saturating<i64>
impl Add for Saturating<i64>
type Output = Saturating<i64>
1.74.0 · source§impl Add for Saturating<i128>
impl Add for Saturating<i128>
type Output = Saturating<i128>
1.74.0 · source§impl Add for Saturating<isize>
impl Add for Saturating<isize>
type Output = Saturating<isize>
1.74.0 · source§impl Add for Saturating<u8>
impl Add for Saturating<u8>
type Output = Saturating<u8>
1.74.0 · source§impl Add for Saturating<u16>
impl Add for Saturating<u16>
type Output = Saturating<u16>
1.74.0 · source§impl Add for Saturating<u32>
impl Add for Saturating<u32>
type Output = Saturating<u32>
1.74.0 · source§impl Add for Saturating<u64>
impl Add for Saturating<u64>
type Output = Saturating<u64>
1.74.0 · source§impl Add for Saturating<u128>
impl Add for Saturating<u128>
type Output = Saturating<u128>
1.74.0 · source§impl Add for Saturating<usize>
impl Add for Saturating<usize>
type Output = Saturating<usize>
1.0.0 · source§impl Add<&str> for String
Available on non-no_global_oom_handling
only.
impl Add<&str> for String
no_global_oom_handling
only.Implements the +
operator for concatenating two strings.
This consumes the String
on the left-hand side and re-uses its buffer (growing it if
necessary). This is done to avoid allocating a new String
and copying the entire contents on
every operation, which would lead to O(n^2) running time when building an n-byte string by
repeated concatenation.
The string on the right-hand side is only borrowed; its contents are copied into the returned
String
.
§Examples
Concatenating two String
s takes the first by value and borrows the second:
let a = String::from("hello");
let b = String::from(" world");
let c = a + &b;
// `a` is moved and can no longer be used here.
If you want to keep using the first String
, you can clone it and append to the clone instead:
let a = String::from("hello");
let b = String::from(" world");
let c = a.clone() + &b;
// `a` is still valid here.
Concatenating &str
slices can be done by converting the first to a String
:
let a = "hello";
let b = " world";
let c = a.to_string() + b;
1.74.0 · source§impl Add<&Saturating<i8>> for &Saturating<i8>
impl Add<&Saturating<i8>> for &Saturating<i8>
1.74.0 · source§impl Add<&Saturating<i8>> for Saturating<i8>
impl Add<&Saturating<i8>> for Saturating<i8>
1.74.0 · source§impl Add<&Saturating<i16>> for &Saturating<i16>
impl Add<&Saturating<i16>> for &Saturating<i16>
1.74.0 · source§impl Add<&Saturating<i16>> for Saturating<i16>
impl Add<&Saturating<i16>> for Saturating<i16>
1.74.0 · source§impl Add<&Saturating<i32>> for &Saturating<i32>
impl Add<&Saturating<i32>> for &Saturating<i32>
1.74.0 · source§impl Add<&Saturating<i32>> for Saturating<i32>
impl Add<&Saturating<i32>> for Saturating<i32>
1.74.0 · source§impl Add<&Saturating<i64>> for &Saturating<i64>
impl Add<&Saturating<i64>> for &Saturating<i64>
1.74.0 · source§impl Add<&Saturating<i64>> for Saturating<i64>
impl Add<&Saturating<i64>> for Saturating<i64>
1.74.0 · source§impl Add<&Saturating<i128>> for &Saturating<i128>
impl Add<&Saturating<i128>> for &Saturating<i128>
1.74.0 · source§impl Add<&Saturating<i128>> for Saturating<i128>
impl Add<&Saturating<i128>> for Saturating<i128>
1.74.0 · source§impl Add<&Saturating<isize>> for &Saturating<isize>
impl Add<&Saturating<isize>> for &Saturating<isize>
1.74.0 · source§impl Add<&Saturating<isize>> for Saturating<isize>
impl Add<&Saturating<isize>> for Saturating<isize>
1.74.0 · source§impl Add<&Saturating<u8>> for &Saturating<u8>
impl Add<&Saturating<u8>> for &Saturating<u8>
1.74.0 · source§impl Add<&Saturating<u8>> for Saturating<u8>
impl Add<&Saturating<u8>> for Saturating<u8>
1.74.0 · source§impl Add<&Saturating<u16>> for &Saturating<u16>
impl Add<&Saturating<u16>> for &Saturating<u16>
1.74.0 · source§impl Add<&Saturating<u16>> for Saturating<u16>
impl Add<&Saturating<u16>> for Saturating<u16>
1.74.0 · source§impl Add<&Saturating<u32>> for &Saturating<u32>
impl Add<&Saturating<u32>> for &Saturating<u32>
1.74.0 · source§impl Add<&Saturating<u32>> for Saturating<u32>
impl Add<&Saturating<u32>> for Saturating<u32>
1.74.0 · source§impl Add<&Saturating<u64>> for &Saturating<u64>
impl Add<&Saturating<u64>> for &Saturating<u64>
1.74.0 · source§impl Add<&Saturating<u64>> for Saturating<u64>
impl Add<&Saturating<u64>> for Saturating<u64>
1.74.0 · source§impl Add<&Saturating<u128>> for &Saturating<u128>
impl Add<&Saturating<u128>> for &Saturating<u128>
1.74.0 · source§impl Add<&Saturating<u128>> for Saturating<u128>
impl Add<&Saturating<u128>> for Saturating<u128>
1.74.0 · source§impl Add<&Saturating<usize>> for &Saturating<usize>
impl Add<&Saturating<usize>> for &Saturating<usize>
1.74.0 · source§impl Add<&Saturating<usize>> for Saturating<usize>
impl Add<&Saturating<usize>> for Saturating<usize>
source§impl Add<&LittleEndian<f32>> for &LittleEndian<f32>
impl Add<&LittleEndian<f32>> for &LittleEndian<f32>
source§impl Add<&LittleEndian<f32>> for LittleEndian<f32>
impl Add<&LittleEndian<f32>> for LittleEndian<f32>
source§impl Add<&LittleEndian<f64>> for &LittleEndian<f64>
impl Add<&LittleEndian<f64>> for &LittleEndian<f64>
source§impl Add<&LittleEndian<f64>> for LittleEndian<f64>
impl Add<&LittleEndian<f64>> for LittleEndian<f64>
source§impl Add<&LittleEndian<i16>> for &LittleEndian<i16>
impl Add<&LittleEndian<i16>> for &LittleEndian<i16>
source§impl Add<&LittleEndian<i16>> for LittleEndian<i16>
impl Add<&LittleEndian<i16>> for LittleEndian<i16>
source§impl Add<&LittleEndian<i32>> for &LittleEndian<i32>
impl Add<&LittleEndian<i32>> for &LittleEndian<i32>
source§impl Add<&LittleEndian<i32>> for LittleEndian<i32>
impl Add<&LittleEndian<i32>> for LittleEndian<i32>
source§impl Add<&LittleEndian<i64>> for &LittleEndian<i64>
impl Add<&LittleEndian<i64>> for &LittleEndian<i64>
source§impl Add<&LittleEndian<i64>> for LittleEndian<i64>
impl Add<&LittleEndian<i64>> for LittleEndian<i64>
source§impl Add<&LittleEndian<i128>> for &LittleEndian<i128>
impl Add<&LittleEndian<i128>> for &LittleEndian<i128>
source§impl Add<&LittleEndian<i128>> for LittleEndian<i128>
impl Add<&LittleEndian<i128>> for LittleEndian<i128>
source§impl Add<&LittleEndian<u16>> for &LittleEndian<u16>
impl Add<&LittleEndian<u16>> for &LittleEndian<u16>
source§impl Add<&LittleEndian<u16>> for LittleEndian<u16>
impl Add<&LittleEndian<u16>> for LittleEndian<u16>
source§impl Add<&LittleEndian<u32>> for &LittleEndian<u32>
impl Add<&LittleEndian<u32>> for &LittleEndian<u32>
source§impl Add<&LittleEndian<u32>> for LittleEndian<u32>
impl Add<&LittleEndian<u32>> for LittleEndian<u32>
source§impl Add<&LittleEndian<u64>> for &LittleEndian<u64>
impl Add<&LittleEndian<u64>> for &LittleEndian<u64>
source§impl Add<&LittleEndian<u64>> for LittleEndian<u64>
impl Add<&LittleEndian<u64>> for LittleEndian<u64>
source§impl Add<&LittleEndian<u128>> for &LittleEndian<u128>
impl Add<&LittleEndian<u128>> for &LittleEndian<u128>
source§impl Add<&LittleEndian<u128>> for LittleEndian<u128>
impl Add<&LittleEndian<u128>> for LittleEndian<u128>
source§impl Add<&NativeEndian<f32>> for &NativeEndian<f32>
impl Add<&NativeEndian<f32>> for &NativeEndian<f32>
source§impl Add<&NativeEndian<f32>> for NativeEndian<f32>
impl Add<&NativeEndian<f32>> for NativeEndian<f32>
source§impl Add<&NativeEndian<f64>> for &NativeEndian<f64>
impl Add<&NativeEndian<f64>> for &NativeEndian<f64>
source§impl Add<&NativeEndian<f64>> for NativeEndian<f64>
impl Add<&NativeEndian<f64>> for NativeEndian<f64>
source§impl Add<&NativeEndian<i16>> for &NativeEndian<i16>
impl Add<&NativeEndian<i16>> for &NativeEndian<i16>
source§impl Add<&NativeEndian<i16>> for NativeEndian<i16>
impl Add<&NativeEndian<i16>> for NativeEndian<i16>
source§impl Add<&NativeEndian<i32>> for &NativeEndian<i32>
impl Add<&NativeEndian<i32>> for &NativeEndian<i32>
source§impl Add<&NativeEndian<i32>> for NativeEndian<i32>
impl Add<&NativeEndian<i32>> for NativeEndian<i32>
source§impl Add<&NativeEndian<i64>> for &NativeEndian<i64>
impl Add<&NativeEndian<i64>> for &NativeEndian<i64>
source§impl Add<&NativeEndian<i64>> for NativeEndian<i64>
impl Add<&NativeEndian<i64>> for NativeEndian<i64>
source§impl Add<&NativeEndian<i128>> for &NativeEndian<i128>
impl Add<&NativeEndian<i128>> for &NativeEndian<i128>
source§impl Add<&NativeEndian<i128>> for NativeEndian<i128>
impl Add<&NativeEndian<i128>> for NativeEndian<i128>
source§impl Add<&NativeEndian<u16>> for &NativeEndian<u16>
impl Add<&NativeEndian<u16>> for &NativeEndian<u16>
source§impl Add<&NativeEndian<u16>> for NativeEndian<u16>
impl Add<&NativeEndian<u16>> for NativeEndian<u16>
source§impl Add<&NativeEndian<u32>> for &NativeEndian<u32>
impl Add<&NativeEndian<u32>> for &NativeEndian<u32>
source§impl Add<&NativeEndian<u32>> for NativeEndian<u32>
impl Add<&NativeEndian<u32>> for NativeEndian<u32>
source§impl Add<&NativeEndian<u64>> for &NativeEndian<u64>
impl Add<&NativeEndian<u64>> for &NativeEndian<u64>
source§impl Add<&NativeEndian<u64>> for NativeEndian<u64>
impl Add<&NativeEndian<u64>> for NativeEndian<u64>
source§impl Add<&NativeEndian<u128>> for &NativeEndian<u128>
impl Add<&NativeEndian<u128>> for &NativeEndian<u128>
source§impl Add<&NativeEndian<u128>> for NativeEndian<u128>
impl Add<&NativeEndian<u128>> for NativeEndian<u128>
1.8.0 · source§impl Add<Duration> for SystemTime
impl Add<Duration> for SystemTime
type Output = SystemTime
source§impl Add<LittleEndian<f32>> for &LittleEndian<f32>
impl Add<LittleEndian<f32>> for &LittleEndian<f32>
source§impl Add<LittleEndian<f64>> for &LittleEndian<f64>
impl Add<LittleEndian<f64>> for &LittleEndian<f64>
source§impl Add<LittleEndian<i16>> for &LittleEndian<i16>
impl Add<LittleEndian<i16>> for &LittleEndian<i16>
source§impl Add<LittleEndian<i32>> for &LittleEndian<i32>
impl Add<LittleEndian<i32>> for &LittleEndian<i32>
source§impl Add<LittleEndian<i64>> for &LittleEndian<i64>
impl Add<LittleEndian<i64>> for &LittleEndian<i64>
source§impl Add<LittleEndian<i128>> for &LittleEndian<i128>
impl Add<LittleEndian<i128>> for &LittleEndian<i128>
source§impl Add<LittleEndian<u16>> for &LittleEndian<u16>
impl Add<LittleEndian<u16>> for &LittleEndian<u16>
source§impl Add<LittleEndian<u32>> for &LittleEndian<u32>
impl Add<LittleEndian<u32>> for &LittleEndian<u32>
source§impl Add<LittleEndian<u64>> for &LittleEndian<u64>
impl Add<LittleEndian<u64>> for &LittleEndian<u64>
source§impl Add<LittleEndian<u128>> for &LittleEndian<u128>
impl Add<LittleEndian<u128>> for &LittleEndian<u128>
source§impl Add<NativeEndian<f32>> for &NativeEndian<f32>
impl Add<NativeEndian<f32>> for &NativeEndian<f32>
source§impl Add<NativeEndian<f64>> for &NativeEndian<f64>
impl Add<NativeEndian<f64>> for &NativeEndian<f64>
source§impl Add<NativeEndian<i16>> for &NativeEndian<i16>
impl Add<NativeEndian<i16>> for &NativeEndian<i16>
source§impl Add<NativeEndian<i32>> for &NativeEndian<i32>
impl Add<NativeEndian<i32>> for &NativeEndian<i32>
source§impl Add<NativeEndian<i64>> for &NativeEndian<i64>
impl Add<NativeEndian<i64>> for &NativeEndian<i64>
source§impl Add<NativeEndian<i128>> for &NativeEndian<i128>
impl Add<NativeEndian<i128>> for &NativeEndian<i128>
source§impl Add<NativeEndian<u16>> for &NativeEndian<u16>
impl Add<NativeEndian<u16>> for &NativeEndian<u16>
source§impl Add<NativeEndian<u32>> for &NativeEndian<u32>
impl Add<NativeEndian<u32>> for &NativeEndian<u32>
source§impl Add<NativeEndian<u64>> for &NativeEndian<u64>
impl Add<NativeEndian<u64>> for &NativeEndian<u64>
source§impl Add<NativeEndian<u128>> for &NativeEndian<u128>
impl Add<NativeEndian<u128>> for &NativeEndian<u128>
1.74.0 · source§impl<'a> Add<Saturating<i8>> for &'a Saturating<i8>
impl<'a> Add<Saturating<i8>> for &'a Saturating<i8>
1.74.0 · source§impl<'a> Add<Saturating<i16>> for &'a Saturating<i16>
impl<'a> Add<Saturating<i16>> for &'a Saturating<i16>
1.74.0 · source§impl<'a> Add<Saturating<i32>> for &'a Saturating<i32>
impl<'a> Add<Saturating<i32>> for &'a Saturating<i32>
1.74.0 · source§impl<'a> Add<Saturating<i64>> for &'a Saturating<i64>
impl<'a> Add<Saturating<i64>> for &'a Saturating<i64>
1.74.0 · source§impl<'a> Add<Saturating<i128>> for &'a Saturating<i128>
impl<'a> Add<Saturating<i128>> for &'a Saturating<i128>
1.74.0 · source§impl<'a> Add<Saturating<isize>> for &'a Saturating<isize>
impl<'a> Add<Saturating<isize>> for &'a Saturating<isize>
1.74.0 · source§impl<'a> Add<Saturating<u8>> for &'a Saturating<u8>
impl<'a> Add<Saturating<u8>> for &'a Saturating<u8>
1.74.0 · source§impl<'a> Add<Saturating<u16>> for &'a Saturating<u16>
impl<'a> Add<Saturating<u16>> for &'a Saturating<u16>
1.74.0 · source§impl<'a> Add<Saturating<u32>> for &'a Saturating<u32>
impl<'a> Add<Saturating<u32>> for &'a Saturating<u32>
1.74.0 · source§impl<'a> Add<Saturating<u64>> for &'a Saturating<u64>
impl<'a> Add<Saturating<u64>> for &'a Saturating<u64>
1.74.0 · source§impl<'a> Add<Saturating<u128>> for &'a Saturating<u128>
impl<'a> Add<Saturating<u128>> for &'a Saturating<u128>
1.74.0 · source§impl<'a> Add<Saturating<usize>> for &'a Saturating<usize>
impl<'a> Add<Saturating<usize>> for &'a Saturating<usize>
source§impl<Ul, Ur> Add<UInt<Ur, B0>> for UInt<Ul, B0>
impl<Ul, Ur> Add<UInt<Ur, B0>> for UInt<Ul, B0>
UInt<Ul, B0> + UInt<Ur, B0> = UInt<Ul + Ur, B0>
source§impl<Ul, Ur> Add<UInt<Ur, B0>> for UInt<Ul, B1>
impl<Ul, Ur> Add<UInt<Ur, B0>> for UInt<Ul, B1>
UInt<Ul, B1> + UInt<Ur, B0> = UInt<Ul + Ur, B1>
source§impl<Ul, Ur> Add<UInt<Ur, B1>> for UInt<Ul, B0>
impl<Ul, Ur> Add<UInt<Ur, B1>> for UInt<Ul, B0>
UInt<Ul, B0> + UInt<Ur, B1> = UInt<Ul + Ur, B1>
source§impl<Ul, Ur> Add<UInt<Ur, B1>> for UInt<Ul, B1>
impl<Ul, Ur> Add<UInt<Ur, B1>> for UInt<Ul, B1>
UInt<Ul, B1> + UInt<Ur, B1> = UInt<(Ul + Ur) + B1, B0>