mirror of https://github.com/rust-lang/rust
28 lines
631 B
Rust
28 lines
631 B
Rust
//@ check-pass
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#![warn(unused_must_use)]
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#![feature(never_type)]
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use std::ops::Add;
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use std::ops::Sub;
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use std::ops::Mul;
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use std::ops::Div;
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use std::ops::Rem;
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fn main() {
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let x = 2_u32;
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(x.add(4), x.sub(4), x.mul(4), x.div(4), x.rem(4));
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x.add(4); //~ WARN unused return value of `add` that must be used
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x.sub(4); //~ WARN unused return value of `sub` that must be used
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x.mul(4); //~ WARN unused return value of `mul` that must be used
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x.div(4); //~ WARN unused return value of `div` that must be used
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x.rem(4); //~ WARN unused return value of `rem` that must be used
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println!("{}", x);
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}
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