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Trait CheckedSub

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pub trait CheckedSub: Sized + Sub<Output = Self> {
    // Required method
    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.

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

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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 i128

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

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impl CheckedSub for isize

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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 u128

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

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impl CheckedSub for usize

Implementors§