Trait SignedAndUnsigned

pub trait SignedAndUnsigned: Sized {
    const MINIMUM: Self;

    // Required methods
    fn abs(&self) -> Option<Self>;
    fn is_negative(&self) -> bool;
}

Signed number operations implemented for both signed and unsigned numbers.

Required Associated Constants

const MINIMUM: Self

Minimum value for the type.

Required Methods

fn abs(&self) -> Option<Self>

The absolute value of a number. If the number is signed and equal to ::MIN, this operation would normally panic at overflow in debug or return ::MIN in release. This is undesired behavior, so we return None instead.

fn is_negative(&self) -> bool

Reports whether the number is negative.

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.

Implementations on Foreign Types

impl SignedAndUnsigned for i8

const MINIMUM: Self = -128i8

fn abs(&self) -> Option<i8>

fn is_negative(&self) -> bool

impl SignedAndUnsigned for i16

const MINIMUM: Self = -32_768i16

fn abs(&self) -> Option<i16>

fn is_negative(&self) -> bool

impl SignedAndUnsigned for i32

const MINIMUM: Self = -2_147_483_648i32

fn abs(&self) -> Option<i32>

fn is_negative(&self) -> bool

impl SignedAndUnsigned for i64

const MINIMUM: Self = -9_223_372_036_854_775_808i64

fn abs(&self) -> Option<i64>

fn is_negative(&self) -> bool

impl SignedAndUnsigned for isize

const MINIMUM: Self = -9_223_372_036_854_775_808isize

fn abs(&self) -> Option<isize>

fn is_negative(&self) -> bool

impl SignedAndUnsigned for u8

const MINIMUM: Self = 0u8

fn abs(&self) -> Option<u8>

fn is_negative(&self) -> bool

impl SignedAndUnsigned for u16

const MINIMUM: Self = 0u16

fn abs(&self) -> Option<u16>

fn is_negative(&self) -> bool

impl SignedAndUnsigned for u32

const MINIMUM: Self = 0u32

fn abs(&self) -> Option<u32>

fn is_negative(&self) -> bool

impl SignedAndUnsigned for u64

const MINIMUM: Self = 0u64

fn abs(&self) -> Option<u64>

fn is_negative(&self) -> bool

impl SignedAndUnsigned for usize

const MINIMUM: Self = 0usize

fn abs(&self) -> Option<usize>

fn is_negative(&self) -> bool

Implementors