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[rustc.git] / src / tools / clippy / tests / ui / iter_next_slice.rs
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1// run-rustfix
2#![warn(clippy::iter_next_slice)]
3
4fn main() {
5 // test code goes here
6 let s = [1, 2, 3];
7 let v = vec![1, 2, 3];
8
9 s.iter().next();
10 // Should be replaced by s.get(0)
11
12 s[2..].iter().next();
13 // Should be replaced by s.get(2)
14
15 v[5..].iter().next();
16 // Should be replaced by v.get(5)
17
18 v.iter().next();
19 // Should be replaced by v.get(0)
20
21 let o = Some(5);
22 o.iter().next();
23 // Shouldn't be linted since this is not a Slice or an Array
24}