File: test.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 (19 lines) | stat: -rw-r--r-- 420 bytes parent folder | download | duplicates (24) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
 
extern crate testcrate;

use std::mem;

extern "C" {
    fn give_back(tu: testcrate::TestUnion) -> u64;
}

fn main() {
    let magic: u64 = 0xDEADBEEF;

    // Let's test calling it cross crate
    let back = unsafe { testcrate::give_back(mem::transmute(magic)) };
    assert_eq!(magic, back);

    // And just within this crate
    let back = unsafe { give_back(mem::transmute(magic)) };
    assert_eq!(magic, back);
}