File: unique-ffi-symbols.rs

package info (click to toggle)
rustc 1.85.0%2Bdfsg3-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental, forky, sid, trixie
  • size: 893,396 kB
  • sloc: xml: 158,127; python: 35,830; javascript: 19,497; cpp: 19,002; sh: 17,245; ansic: 13,127; asm: 4,376; makefile: 1,051; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (19 lines) | stat: -rw-r--r-- 504 bytes parent folder | download | duplicates (4) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
 
//@ run-pass
// We used to have a __rust_abi shim that resulted in duplicated symbols
// whenever the item path wasn't enough to disambiguate between them.

#![allow(unpredictable_function_pointer_comparisons)]

fn main() {
    let a = {
        extern "C" fn good() -> i32 { return 0; }
        good as extern "C" fn() -> i32
    };
    let b = {
        extern "C" fn good() -> i32 { return 5; }
        good as extern "C" fn() -> i32
    };

    assert!(a != b);
    assert_eq!((a(), b()), (0, 5));
}