File: const-fn-in-trait.rs

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rustc 1.70.0%2Bdfsg1-9
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trait Foo {
    fn f() -> u32;
    const fn g(); //~ ERROR cannot be declared const
}

impl Foo for u32 {
    const fn f() -> u32 { 22 } //~ ERROR cannot be declared const
    fn g() {}
}

fn main() { }