mirror of https://github.com/rust-lang/rust
18 lines
400 B
Rust
18 lines
400 B
Rust
// Test that we can't declare a const fn in an impl -- right now it's
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// just not allowed at all, though eventually it'd make sense to allow
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// it if the trait fn is const (but right now no trait fns can be
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// const).
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trait Foo {
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fn f() -> u32;
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}
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impl Foo for u32 {
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const fn f() -> u32 {
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//~^ ERROR functions in trait impls cannot be declared const
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22
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}
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}
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fn main() {}
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