mirror of https://github.com/rust-lang/rust
30 lines
469 B
Rust
30 lines
469 B
Rust
#![feature(const_trait_impl, effects)]
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#[const_trait]
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pub trait Plus {
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fn plus(self, rhs: Self) -> Self;
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}
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impl const Plus for i32 {
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fn plus(self, rhs: Self) -> Self {
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self + rhs
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}
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}
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impl Plus for u32 {
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fn plus(self, rhs: Self) -> Self {
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self + rhs
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}
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}
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pub const fn add_i32(a: i32, b: i32) -> i32 {
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a.plus(b) // ok
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}
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pub const fn add_u32(a: u32, b: u32) -> u32 {
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a.plus(b)
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//~^ ERROR the trait bound
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}
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fn main() {}
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