pub trait Sub<Rhs = Self> {
type Output;
// Required method
fn sub(self, rhs: Rhs) -> Self::Output;
}
Available on crate feature
mtls
only.Expand description
The subtraction operator -
.
Note that Rhs
is Self
by default, but this is not mandatory. For
example, std::time::SystemTime
implements Sub<Duration>
, which permits
operations of the form SystemTime = SystemTime - Duration
.
§Examples
§Sub
tractable points
use std::ops::Sub;
#[derive(Debug, Copy, Clone, PartialEq)]
struct Point {
x: i32,
y: i32,
}
impl Sub for Point {
type Output = Self;
fn sub(self, other: Self) -> Self::Output {
Self {
x: self.x - other.x,
y: self.y - other.y,
}
}
}
assert_eq!(Point { x: 3, y: 3 } - Point { x: 2, y: 3 },
Point { x: 1, y: 0 });
§Implementing Sub
with generics
Here is an example of the same Point
struct implementing the Sub
trait
using generics.
use std::ops::Sub;
#[derive(Debug, PartialEq)]
struct Point<T> {
x: T,
y: T,
}
// Notice that the implementation uses the associated type `Output`.
impl<T: Sub<Output = T>> Sub for Point<T> {
type Output = Self;
fn sub(self, other: Self) -> Self::Output {
Point {
x: self.x - other.x,
y: self.y - other.y,
}
}
}
assert_eq!(Point { x: 2, y: 3 } - Point { x: 1, y: 0 },
Point { x: 1, y: 3 });
Required Associated Types§
Required Methods§
Implementors§
1.74.0 · Source§impl Sub for Saturating<i8>
impl Sub for Saturating<i8>
type Output = Saturating<i8>
1.74.0 · Source§impl Sub for Saturating<i16>
impl Sub for Saturating<i16>
type Output = Saturating<i16>
1.74.0 · Source§impl Sub for Saturating<i32>
impl Sub for Saturating<i32>
type Output = Saturating<i32>
1.74.0 · Source§impl Sub for Saturating<i64>
impl Sub for Saturating<i64>
type Output = Saturating<i64>
1.74.0 · Source§impl Sub for Saturating<i128>
impl Sub for Saturating<i128>
type Output = Saturating<i128>
1.74.0 · Source§impl Sub for Saturating<isize>
impl Sub for Saturating<isize>
type Output = Saturating<isize>
1.74.0 · Source§impl Sub for Saturating<u8>
impl Sub for Saturating<u8>
type Output = Saturating<u8>
1.74.0 · Source§impl Sub for Saturating<u16>
impl Sub for Saturating<u16>
type Output = Saturating<u16>
1.74.0 · Source§impl Sub for Saturating<u32>
impl Sub for Saturating<u32>
type Output = Saturating<u32>
1.74.0 · Source§impl Sub for Saturating<u64>
impl Sub for Saturating<u64>
type Output = Saturating<u64>
1.74.0 · Source§impl Sub for Saturating<u128>
impl Sub for Saturating<u128>
type Output = Saturating<u128>
1.74.0 · Source§impl Sub for Saturating<usize>
impl Sub for Saturating<usize>
type Output = Saturating<usize>
Source§impl Sub for CreateFlags
impl Sub for CreateFlags
type Output = CreateFlags
Source§impl Sub for WatchFlags
impl Sub for WatchFlags
type Output = WatchFlags
Source§impl Sub for FallocateFlags
impl Sub for FallocateFlags
type Output = FallocateFlags
Source§impl Sub for MemfdFlags
impl Sub for MemfdFlags
type Output = MemfdFlags
Source§impl Sub for RenameFlags
impl Sub for RenameFlags
type Output = RenameFlags
Source§impl Sub for ResolveFlags
impl Sub for ResolveFlags
type Output = ResolveFlags
Source§impl Sub for StatVfsMountFlags
impl Sub for StatVfsMountFlags
type Output = StatVfsMountFlags
Source§impl Sub for StatxFlags
impl Sub for StatxFlags
type Output = StatxFlags
Source§impl Sub for ReadWriteFlags
impl Sub for ReadWriteFlags
type Output = ReadWriteFlags
Source§impl Sub for MountFlags
impl Sub for MountFlags
type Output = MountFlags
Source§impl Sub for MountPropagationFlags
impl Sub for MountPropagationFlags
Source§impl Sub for UnmountFlags
impl Sub for UnmountFlags
type Output = UnmountFlags
Source§impl Sub for XattrFlags
impl Sub for XattrFlags
type Output = XattrFlags
1.74.0 · Source§impl Sub<&Saturating<i8>> for &Saturating<i8>
impl Sub<&Saturating<i8>> for &Saturating<i8>
1.74.0 · Source§impl Sub<&Saturating<i8>> for Saturating<i8>
impl Sub<&Saturating<i8>> for Saturating<i8>
1.74.0 · Source§impl Sub<&Saturating<i16>> for &Saturating<i16>
impl Sub<&Saturating<i16>> for &Saturating<i16>
1.74.0 · Source§impl Sub<&Saturating<i16>> for Saturating<i16>
impl Sub<&Saturating<i16>> for Saturating<i16>
1.74.0 · Source§impl Sub<&Saturating<i32>> for &Saturating<i32>
impl Sub<&Saturating<i32>> for &Saturating<i32>
1.74.0 · Source§impl Sub<&Saturating<i32>> for Saturating<i32>
impl Sub<&Saturating<i32>> for Saturating<i32>
1.74.0 · Source§impl Sub<&Saturating<i64>> for &Saturating<i64>
impl Sub<&Saturating<i64>> for &Saturating<i64>
1.74.0 · Source§impl Sub<&Saturating<i64>> for Saturating<i64>
impl Sub<&Saturating<i64>> for Saturating<i64>
1.74.0 · Source§impl Sub<&Saturating<i128>> for &Saturating<i128>
impl Sub<&Saturating<i128>> for &Saturating<i128>
1.74.0 · Source§impl Sub<&Saturating<i128>> for Saturating<i128>
impl Sub<&Saturating<i128>> for Saturating<i128>
1.74.0 · Source§impl Sub<&Saturating<isize>> for &Saturating<isize>
impl Sub<&Saturating<isize>> for &Saturating<isize>
1.74.0 · Source§impl Sub<&Saturating<isize>> for Saturating<isize>
impl Sub<&Saturating<isize>> for Saturating<isize>
1.74.0 · Source§impl Sub<&Saturating<u8>> for &Saturating<u8>
impl Sub<&Saturating<u8>> for &Saturating<u8>
1.74.0 · Source§impl Sub<&Saturating<u8>> for Saturating<u8>
impl Sub<&Saturating<u8>> for Saturating<u8>
1.74.0 · Source§impl Sub<&Saturating<u16>> for &Saturating<u16>
impl Sub<&Saturating<u16>> for &Saturating<u16>
1.74.0 · Source§impl Sub<&Saturating<u16>> for Saturating<u16>
impl Sub<&Saturating<u16>> for Saturating<u16>
1.74.0 · Source§impl Sub<&Saturating<u32>> for &Saturating<u32>
impl Sub<&Saturating<u32>> for &Saturating<u32>
1.74.0 · Source§impl Sub<&Saturating<u32>> for Saturating<u32>
impl Sub<&Saturating<u32>> for Saturating<u32>
1.74.0 · Source§impl Sub<&Saturating<u64>> for &Saturating<u64>
impl Sub<&Saturating<u64>> for &Saturating<u64>
1.74.0 · Source§impl Sub<&Saturating<u64>> for Saturating<u64>
impl Sub<&Saturating<u64>> for Saturating<u64>
1.74.0 · Source§impl Sub<&Saturating<u128>> for &Saturating<u128>
impl Sub<&Saturating<u128>> for &Saturating<u128>
1.74.0 · Source§impl Sub<&Saturating<u128>> for Saturating<u128>
impl Sub<&Saturating<u128>> for Saturating<u128>
1.74.0 · Source§impl Sub<&Saturating<usize>> for &Saturating<usize>
impl Sub<&Saturating<usize>> for &Saturating<usize>
1.74.0 · Source§impl Sub<&Saturating<usize>> for Saturating<usize>
impl Sub<&Saturating<usize>> for Saturating<usize>
1.8.0 · Source§impl Sub<Duration> for SystemTime
impl Sub<Duration> for SystemTime
type Output = SystemTime
Source§impl Sub<Duration> for OffsetDateTime
impl Sub<Duration> for OffsetDateTime
type Output = OffsetDateTime
Source§impl Sub<Duration> for PrimitiveDateTime
impl Sub<Duration> for PrimitiveDateTime
type Output = PrimitiveDateTime
Source§impl Sub<SystemTime> for OffsetDateTime
impl Sub<SystemTime> for OffsetDateTime
Source§impl Sub<Duration> for SystemTime
impl Sub<Duration> for SystemTime
type Output = SystemTime
Source§impl Sub<Duration> for OffsetDateTime
impl Sub<Duration> for OffsetDateTime
type Output = OffsetDateTime
Source§impl Sub<Duration> for PrimitiveDateTime
impl Sub<Duration> for PrimitiveDateTime
type Output = PrimitiveDateTime
Source§impl Sub<OffsetDateTime> for SystemTime
impl Sub<OffsetDateTime> for SystemTime
1.74.0 · Source§impl<'a> Sub<Saturating<i8>> for &'a Saturating<i8>
impl<'a> Sub<Saturating<i8>> for &'a Saturating<i8>
1.74.0 · Source§impl<'a> Sub<Saturating<i16>> for &'a Saturating<i16>
impl<'a> Sub<Saturating<i16>> for &'a Saturating<i16>
1.74.0 · Source§impl<'a> Sub<Saturating<i32>> for &'a Saturating<i32>
impl<'a> Sub<Saturating<i32>> for &'a Saturating<i32>
1.74.0 · Source§impl<'a> Sub<Saturating<i64>> for &'a Saturating<i64>
impl<'a> Sub<Saturating<i64>> for &'a Saturating<i64>
1.74.0 · Source§impl<'a> Sub<Saturating<i128>> for &'a Saturating<i128>
impl<'a> Sub<Saturating<i128>> for &'a Saturating<i128>
1.74.0 · Source§impl<'a> Sub<Saturating<isize>> for &'a Saturating<isize>
impl<'a> Sub<Saturating<isize>> for &'a Saturating<isize>
1.74.0 · Source§impl<'a> Sub<Saturating<u8>> for &'a Saturating<u8>
impl<'a> Sub<Saturating<u8>> for &'a Saturating<u8>
1.74.0 · Source§impl<'a> Sub<Saturating<u16>> for &'a Saturating<u16>
impl<'a> Sub<Saturating<u16>> for &'a Saturating<u16>
1.74.0 · Source§impl<'a> Sub<Saturating<u32>> for &'a Saturating<u32>
impl<'a> Sub<Saturating<u32>> for &'a Saturating<u32>
1.74.0 · Source§impl<'a> Sub<Saturating<u64>> for &'a Saturating<u64>
impl<'a> Sub<Saturating<u64>> for &'a Saturating<u64>
1.74.0 · Source§impl<'a> Sub<Saturating<u128>> for &'a Saturating<u128>
impl<'a> Sub<Saturating<u128>> for &'a Saturating<u128>
1.74.0 · Source§impl<'a> Sub<Saturating<usize>> for &'a Saturating<usize>
impl<'a> Sub<Saturating<usize>> for &'a Saturating<usize>
1.0.0 · Source§impl<T, S> Sub<&HashSet<T, S>> for &rocket::mtls::x509::der_parser::asn1_rs::nom::lib::std::collections::HashSet<T, S>
impl<T, S> Sub<&HashSet<T, S>> for &rocket::mtls::x509::der_parser::asn1_rs::nom::lib::std::collections::HashSet<T, S>
Source§impl<Ul, Bl, Ur> Sub<Ur> for UInt<Ul, Bl>
impl<Ul, Bl, Ur> Sub<Ur> for UInt<Ul, Bl>
Subtracting unsigned integers. We just do our PrivateSub
and then Trim
the output.