33 lines
633 B
Rust
33 lines
633 B
Rust
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trait Trait<const N: usize> {
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const Assoc: usize;
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}
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impl<const N: usize> Trait<N> for () {
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const Assoc: usize = 1;
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}
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pub const fn foo<const N: usize>() where (): Trait<N> {
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let bar = [(); <()>::Assoc];
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//~^ error: constant expression depends on a generic parameter
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}
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trait Trait2<const N: usize> {
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const Assoc2: usize;
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}
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impl<const N: usize> Trait2<N> for () {
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const Assoc2: usize = N - 1;
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}
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pub const fn foo2<const N: usize>() where (): Trait2<N> {
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let bar2 = [(); <()>::Assoc2];
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//~^ error: constant expression depends on a generic parameter
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}
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fn main() {
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foo::<0>();
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foo2::<0>();
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}
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