File: generic-const.rs

package info (click to toggle)
rustc-web 1.78.0%2Bdfsg1-2~deb11u3
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,245,360 kB
  • sloc: xml: 147,985; javascript: 18,022; sh: 11,083; python: 10,265; ansic: 6,172; cpp: 5,023; asm: 4,390; makefile: 4,269
file content (30 lines) | stat: -rw-r--r-- 580 bytes parent folder | download
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
//@ needs-asm-support
//@ build-pass

#![feature(asm_const)]

use std::arch::asm;

fn foofoo<const N: usize>() {}

unsafe fn foo<const N: usize>() {
    asm!("/* {0} */", const N);
    asm!("/* {0} */", const N + 1);
    asm!("/* {0} */", sym foofoo::<N>);
}

fn barbar<T>() {}

unsafe fn bar<T>() {
    asm!("/* {0} */", const std::mem::size_of::<T>());
    asm!("/* {0} */", const std::mem::size_of::<(T, T)>());
    asm!("/* {0} */", sym barbar::<T>);
    asm!("/* {0} */", sym barbar::<(T, T)>);
}

fn main() {
    unsafe {
        foo::<0>();
        bar::<usize>();
    }
}