File: issue-39211.rs

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rustc 1.85.0%2Bdfsg3-1
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trait VecN {
    const DIM: usize;
}
trait Mat {
    type Row: VecN;
}

fn m<M: Mat>() {
    let a = [3; M::Row::DIM];
    //~^ ERROR constant expression depends on a generic parameter
    //~| ERROR constant expression depends on a generic parameter
}
fn main() {
}