Trait I32Packer 

pub trait I32Packer {
    // Required methods
    fn pack_i32(first: i32, second: i32) -> Self;
    fn first_i32(&self) -> i32;
    fn second_i32(&self) -> i32;

    // Provided method
    fn unpack_i32(&self) -> (i32, i32) { ... }
}

Trait for packing and unpacking two i32 values into a single value.

Required Methods

fn pack_i32(first: i32, second: i32) -> Self

Packs two i32 values into a single value of the implementing type.

Example

use num_packer::I32Packer;
let packed = u64::pack_i32(-200, 15);
assert_eq!(packed, ((-200i32 as u32 as u64) << 32) + (15u32 as u64));

fn first_i32(&self) -> i32

Gets the first i32 value from the packed representation.

Example

use num_packer::I32Packer;
let packed = u64::pack_i32(-200, 15);
assert_eq!(packed.first_i32(), -200);

fn second_i32(&self) -> i32

Gets the second i32 value from the packed representation.

Example

use num_packer::I32Packer;
let packed = u64::pack_i32(-200, 15);
assert_eq!(packed.second_i32(), 15);

Provided Methods

fn unpack_i32(&self) -> (i32, i32)

Unpacks the single value back into two i32 values.

Example

use num_packer::I32Packer;
let packed = u64::pack_i32(-200, 15);
let (first, second) = packed.unpack_i32();
assert_eq!((first, second), (-200, 15));

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 I32Packer for i64

fn pack_i32(first: i32, second: i32) -> Self

fn first_i32(&self) -> i32

fn second_i32(&self) -> i32

impl I32Packer for isize

fn pack_i32(first: i32, second: i32) -> Self

fn first_i32(&self) -> i32

fn second_i32(&self) -> i32

impl I32Packer for u64

fn pack_i32(first: i32, second: i32) -> Self

fn first_i32(&self) -> i32

fn second_i32(&self) -> i32

impl I32Packer for usize

fn pack_i32(first: i32, second: i32) -> Self

fn first_i32(&self) -> i32

fn second_i32(&self) -> i32

Implementors