File: union-fields-1.rs

package info (click to toggle)
rustc 1.85.0%2Bdfsg3-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental, 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 (32 lines) | stat: -rw-r--r-- 703 bytes parent folder | download | duplicates (5)
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
32
#![deny(dead_code)]

union U1 {
    a: u8, // should not be reported
    b: u8, // should not be reported
    c: u8, //~ ERROR field `c` is never read
}
union U2 {
    a: u8, //~ ERROR field `a` is never read
    b: u8, // should not be reported
    c: u8, // should not be reported
}
union NoDropLike { a: u8 } //~ ERROR field `a` is never read

union U {
    a: u8, // should not be reported
    b: u8, // should not be reported
    c: u8, //~ ERROR field `c` is never read
}
type A = U;

fn main() {
    let u = U1 { a: 0 };
    let _a = unsafe { u.b };

    let u = U2 { c: 0 };
    let _b = unsafe { u.b };

    let _u = NoDropLike { a: 10 };
    let u = A { a: 0 };
    let _b = unsafe { u.b };
}