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// check-pass
#![feature(const_fn_trait_bound)]
#![feature(const_trait_impl)]
#![feature(const_trait_bound_opt_out)]
#![allow(incomplete_features)]
struct S;
impl PartialEq for S {
fn eq(&self, _: &S) -> bool {
true
}
}
const fn equals_self<T: ?const PartialEq>(t: &T) -> bool {
true
}
pub const EQ: bool = equals_self(&S);
// Calling `equals_self` with a type that only has a non-const impl is fine, because we opted out.
fn main() {}
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