mirror of https://github.com/rust-lang/rust
19 lines
406 B
Rust
19 lines
406 B
Rust
//@ run-pass
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#![allow(unused_imports)]
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// Test that the call operator autoderefs when calling a bounded type parameter.
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use std::ops::FnMut;
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fn call_with_2(x: &fn(isize) -> isize) -> isize
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{
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x(2) // look ma, no `*`
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}
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fn subtract_22(x: isize) -> isize { x - 22 }
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pub fn main() {
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let subtract_22: fn(isize) -> isize = subtract_22;
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let z = call_with_2(&subtract_22);
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assert_eq!(z, -20);
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}
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