21 lines
487 B
Rust
21 lines
487 B
Rust
// run-pass
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#![allow(unused_variables)]
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// pretty-expanded FIXME #23616
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use std::collections::HashMap;
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fn copy<T: Copy>(&x: &T) -> T {
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x
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}
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fn main() {
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let arr = [(1, 1), (2, 2), (3, 3)];
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let v1: Vec<&_> = arr.iter().collect();
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let v2: Vec<_> = arr.iter().map(copy).collect();
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let m1: HashMap<_, _> = arr.iter().map(copy).collect();
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let m2: HashMap<isize, _> = arr.iter().map(copy).collect();
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let m3: HashMap<_, usize> = arr.iter().map(copy).collect();
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}
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