8a461d940c
suggest adding a where-clause when there is an unmet trait-bound that can be satisfied if some type can implement it.
28 lines
728 B
Rust
28 lines
728 B
Rust
// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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use std::ops::Add;
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trait Scalar {}
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impl Scalar for f64 {}
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struct Bob;
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impl<RHS: Scalar> Add <RHS> for Bob {
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type Output = Bob;
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fn add(self, rhs : RHS) -> Bob {}
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}
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fn main() {
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let b = Bob + 3.5;
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b + 3 //~ ERROR E0277
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//~^ ERROR: mismatched types
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}
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