Trait Size

pub trait Size: Sized {
    const SIZE: usize;
}

A trait for values with a known encoded size at compile time.

For all types implementin this trait, the following invariant must always be true:

let mut writer = Writer::new();
writer.write(Self);
assert_eq!(writer.data().len(), Self::SIZE);

Required Associated Constants

const SIZE: usize

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 Size for f32

const SIZE: usize = 4usize

impl Size for f64

const SIZE: usize = 8usize

impl Size for i8

const SIZE: usize = 1usize

impl Size for i16

const SIZE: usize = 2usize

impl Size for i32

const SIZE: usize = 4usize

impl Size for i64

const SIZE: usize = 8usize

impl Size for u8

const SIZE: usize = 1usize

impl Size for u16

const SIZE: usize = 2usize

impl Size for u32

const SIZE: usize = 4usize

impl Size for u64

const SIZE: usize = 8usize

impl<T> Size for [T; 1]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 2]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 3]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 4]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 5]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 6]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 7]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 8]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 9]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 10]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 11]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 12]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 13]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 14]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 15]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 16]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 17]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 18]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 19]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 20]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 21]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 22]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 23]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 24]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 25]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 26]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 27]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 28]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 29]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 30]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 31]

where T: Size,

const SIZE: usize

impl<T> Size for [T; 32]

where T: Size,

const SIZE: usize

Implementors