File: ranged_ints_macro.rs

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//@ build-pass

#![feature(rustc_attrs)]

macro_rules! apply {
    ($val:expr) => {
        #[rustc_layout_scalar_valid_range_start($val)]
        #[repr(transparent)]
        pub(crate) struct NonZero<T>(pub(crate) T);
    }
}

apply!(1);

fn main() {
    let _x = unsafe { NonZero(1) };
}