File: const-match-pat.rs

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rustc 1.85.0%2Bdfsg3-1
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//@ run-pass

#![feature(inline_const_pat)]
const MMIO_BIT1: u8 = 4;
const MMIO_BIT2: u8 = 5;

fn main() {
    let s = match read_mmio() {
        0 => "FOO",
        const { 1 << MMIO_BIT1 } => "BAR",
        const { 1 << MMIO_BIT2 } => "BAZ",
        _ => unreachable!(),
    };

    assert_eq!("BAZ", s);
}

fn read_mmio() -> i32 {
    1 << 5
}