Trait num_traits::ops::checked::CheckedSub

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

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

Required Methods

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

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

Implementors

• impl CheckedSub for u8

• impl CheckedSub for u16

• impl CheckedSub for u32

• impl CheckedSub for u64

• impl CheckedSub for usize

• impl CheckedSub for u128

• impl CheckedSub for i8

• impl CheckedSub for i16

• impl CheckedSub for i32

• impl CheckedSub for i64

• impl CheckedSub for isize

• impl CheckedSub for i128