CheckedSub in num_traits::ops::checked - Rust
Description: Performs subtraction that returns `None` instead of wrapping around on underflow.
Keywords: rust, rustlang, rust-lang, CheckedSub

# Trait num_traits::ops::checked::CheckedSub

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    pub trait CheckedSub: Sized + Sub<Self, Output = Self> {
        fn checked_sub(&self, v: &Self) -> Option<Self>;
    }

Expand description

Performs subtraction that returns `None` instead of wrapping around on underflow.

## Required Methods§

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

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

## Implementations on Foreign Types§

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### impl CheckedSub for u8

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

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### impl CheckedSub for u16

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

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### impl CheckedSub for u32

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

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### impl CheckedSub for u64

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

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### impl CheckedSub for usize

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

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### impl CheckedSub for u128

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

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### impl CheckedSub for i8

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

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### impl CheckedSub for i16

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

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### impl CheckedSub for i32

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

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### impl CheckedSub for i64

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

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### impl CheckedSub for isize

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

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### impl CheckedSub for i128

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

## Implementors§