feature-gate-const_mut_refs.rs « const-mut-refs « consts « ui « test « src - rust - https://github.com/rust-lang/rust

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path: root/src/test/ui/consts/const-mut-refs/feature-gate-const_mut_refs.rs

blob: 2207599815ee8056198f2a3bbdcb03ffa93bab66 (plain)

fn main() {
    foo(&mut 5);
}

const fn foo(x: &mut i32) -> i32 { //~ ERROR mutable references in const fn are unstable
    *x + 1
}