Trait Truncate 

pub trait Truncate: Sealed + Sized {
    // Required method
    fn truncate<T: TruncateFrom<Self>>(self) -> T;
}

Trait to truncate an integer from a larger size.

This is better than as casting because:

• It is explicitly a truncating operation, and will only truncate
• It only supports similar signs, i/e u16 to i8 will not compile
• It is method chainable
• You can use turbofishy or type inference :D

Error messages should also be clear in the event of an invalid operation, so you will not be left wondering what went wrong, this is mostly thanks to rusts great error messages though

Required Methods

fn truncate<T: TruncateFrom<Self>>(self) -> T

Truncates an integer to a smaller integer

Examples

let u8_val = 0u16.truncate::<u8>();

But this wont compile:

let val: u32 = 0u16.truncate();

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 Truncate for i8

fn truncate<T: TruncateFrom<Self>>(self) -> T

impl Truncate for i16

fn truncate<T: TruncateFrom<Self>>(self) -> T

impl Truncate for i32

fn truncate<T: TruncateFrom<Self>>(self) -> T

impl Truncate for i64

fn truncate<T: TruncateFrom<Self>>(self) -> T

impl Truncate for i128

fn truncate<T: TruncateFrom<Self>>(self) -> T

impl Truncate for u8

fn truncate<T: TruncateFrom<Self>>(self) -> T

impl Truncate for u16

fn truncate<T: TruncateFrom<Self>>(self) -> T

impl Truncate for u32

fn truncate<T: TruncateFrom<Self>>(self) -> T

impl Truncate for u64

fn truncate<T: TruncateFrom<Self>>(self) -> T

impl Truncate for u128

fn truncate<T: TruncateFrom<Self>>(self) -> T

Implementors