rust/tests/ui/consts/consts-in-patterns.rs
2024-02-16 20:02:50 +00:00

29 lines
548 B
Rust

//@ run-pass
const FOO: isize = 10;
const BAR: isize = 3;
const ZST: &() = unsafe { std::mem::transmute(1usize) };
const ZST_ARR: &[u8; 0] = unsafe { std::mem::transmute(1usize) };
const fn foo() -> isize { 4 }
const BOO: isize = foo();
pub fn main() {
let x: isize = 3;
let y = match x {
FOO => 1,
BAR => 2,
BOO => 4,
_ => 3
};
assert_eq!(y, 2);
let z = match &() {
ZST => 9,
};
assert_eq!(z, 9);
let z = match b"" {
ZST_ARR => 10,
};
assert_eq!(z, 10);
}