File: associated-consts.rs

package info (click to toggle)
rustc 1.86.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental, forky, sid
  • size: 913,560 kB
  • sloc: xml: 158,127; python: 35,921; javascript: 19,689; sh: 19,600; cpp: 18,906; ansic: 13,124; asm: 4,376; makefile: 708; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (31 lines) | stat: -rw-r--r-- 557 bytes parent folder | download | duplicates (18)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
//@ run-pass
#![feature(generic_const_exprs)]
#![allow(incomplete_features)]

pub trait BlockCipher {
    const BLOCK_SIZE: usize;
}

struct FooCipher;
impl BlockCipher for FooCipher {
    const BLOCK_SIZE: usize = 64;
}

struct BarCipher;
impl BlockCipher for BarCipher {
    const BLOCK_SIZE: usize = 32;
}

pub struct Block<C>(#[allow(dead_code)] C);

pub fn test<C: BlockCipher, const M: usize>()
where
    [u8; M - C::BLOCK_SIZE]: Sized,
{
    let _ = [0; M - C::BLOCK_SIZE];
}

fn main() {
    test::<FooCipher, 128>();
    test::<BarCipher, 64>();
}