Trait CheckedSub 

pub trait CheckedSub: Sized {
    type Output;

    // Required method
    fn checked_sub(self, v: Self) -> Option<Self::Output>;
}

Performs subtraction, returning None if overflow occurred.

Required Associated Types

type Output

The result type (Self for the primitive impls).

Required Methods

fn checked_sub(self, v: Self) -> Option<Self::Output>

Subtracts two numbers, checking for overflow. If overflow happens, None is returned.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl CheckedSub for i8

type Output = i8

fn checked_sub(self, v: i8) -> Option<i8>

impl CheckedSub for i16

type Output = i16

fn checked_sub(self, v: i16) -> Option<i16>

impl CheckedSub for i32

type Output = i32

fn checked_sub(self, v: i32) -> Option<i32>

impl CheckedSub for i64

type Output = i64

fn checked_sub(self, v: i64) -> Option<i64>

impl CheckedSub for i128

type Output = i128

fn checked_sub(self, v: i128) -> Option<i128>

impl CheckedSub for isize

type Output = isize

fn checked_sub(self, v: isize) -> Option<isize>

impl CheckedSub for u8

type Output = u8

fn checked_sub(self, v: u8) -> Option<u8>

impl CheckedSub for u16

type Output = u16

fn checked_sub(self, v: u16) -> Option<u16>

impl CheckedSub for u32

type Output = u32

fn checked_sub(self, v: u32) -> Option<u32>

impl CheckedSub for u64

type Output = u64

fn checked_sub(self, v: u64) -> Option<u64>

impl CheckedSub for u128

type Output = u128

fn checked_sub(self, v: u128) -> Option<u128>

impl CheckedSub for usize

type Output = usize

fn checked_sub(self, v: usize) -> Option<usize>

Implementors