20 lines
358 B
Rust
20 lines
358 B
Rust
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// check-pass
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#![feature(const_trait_impl, const_cmp, const_default_impls, derive_const)]
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pub struct A;
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impl const Default for A {
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fn default() -> A { A }
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}
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impl const PartialEq for A {
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fn eq(&self, _: &A) -> bool { true }
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}
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#[derive_const(Default, PartialEq)]
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pub struct S((), A);
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const _: () = assert!(S((), A) == S::default());
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fn main() {}
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