mirror of https://github.com/rust-lang/rust
32 lines
780 B
Rust
32 lines
780 B
Rust
struct Foo1<const N1: usize>;
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struct Foo2<const N1: usize, const N2: usize>;
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struct Foo3<const N1: usize, const N2: usize, const N3: usize>;
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impl<const N1: usize> Foo1<N1> {
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const SUM: usize = N1;
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}
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impl<const N1: usize, const N2: usize> Foo2<N1, N2> {
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const SUM: usize = N1 + N2;
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}
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impl<const N1: usize, const N2: usize, const N3: usize> Foo3<N1, N2, N3> {
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const SUM: usize = N1 + N2 + N3;
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}
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fn foo1() -> [(); Foo1<10>::SUM] { //~ ERROR: comparison operators cannot be chained
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todo!()
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}
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fn foo2() -> [(); Foo2<10, 20>::SUM] {
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//~^ ERROR: expected one of `.`, `?`, `]`, or an operator, found `,`
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todo!()
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}
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fn foo3() -> [(); Foo3<10, 20, 30>::SUM] {
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//~^ ERROR: expected one of `.`, `?`, `]`, or an operator, found `,`
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todo!()
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}
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fn main() {}
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