thin-slice

尽可能将切片存储打包到一个单词中的自有切片。

用法

extern crate thin_slice;

use std::mem;
use thin_slice::ThinBoxedSlice;

struct Ticket {
    numbers: Box<[u8]>,
    winning: bool,
}

struct ThinTicket {
    numbers: ThinBoxedSlice<u8>,
    winning: bool,
}

fn main() {
    let nums = vec![4, 8, 15, 16, 23, 42].into_boxed_slice();
    let ticket = ThinTicket {
        numbers: nums.into(),
        winning: false,
    };
    println!("Numbers: {:?}", ticket.numbers);

    println!("size_of::<usize>():      {}", mem::size_of::<usize>());
    println!("size_of::<Ticket>():     {}", mem::size_of::<Ticket>());
    println!("size_of::<ThinTicket>(): {}", mem::size_of::<ThinTicket>());
}

输出在 x86_64

Numbers: [4, 8, 15, 16, 23, 42]
size_of::<usize>():      8
size_of::<Ticket>():     24
size_of::<ThinTicket>(): 16

许可证

thin-slice 根据 Mozilla 公共许可证，第 2.0 版 进行分发。