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#![warn(clippy::suspicious_splitn)]
#![allow(clippy::needless_splitn)]
fn main() {
let _ = "a,b,c".splitn(3, ',');
let _ = [0, 1, 2, 1, 3].splitn(3, |&x| x == 1);
let _ = "".splitn(0, ',');
let _ = [].splitn(0, |&x: &u32| x == 1);
let _ = "a,b".splitn(0, ',');
//~^ ERROR: `splitn` called with `0` splits
//~| NOTE: the resulting iterator will always return `None`
let _ = "a,b".rsplitn(0, ',');
//~^ ERROR: `rsplitn` called with `0` splits
//~| NOTE: the resulting iterator will always return `None`
let _ = "a,b".splitn(1, ',');
//~^ ERROR: `splitn` called with `1` split
//~| NOTE: the resulting iterator will always return the entire string followed by `No
let _ = [0, 1, 2].splitn(0, |&x| x == 1);
//~^ ERROR: `splitn` called with `0` splits
//~| NOTE: the resulting iterator will always return `None`
let _ = [0, 1, 2].splitn_mut(0, |&x| x == 1);
//~^ ERROR: `splitn_mut` called with `0` splits
//~| NOTE: the resulting iterator will always return `None`
let _ = [0, 1, 2].splitn(1, |&x| x == 1);
//~^ ERROR: `splitn` called with `1` split
//~| NOTE: the resulting iterator will always return the entire slice followed by `Non
let _ = [0, 1, 2].rsplitn_mut(1, |&x| x == 1);
//~^ ERROR: `rsplitn_mut` called with `1` split
//~| NOTE: the resulting iterator will always return the entire slice followed by `Non
const X: usize = 0;
let _ = "a,b".splitn(X + 1, ',');
//~^ ERROR: `splitn` called with `1` split
//~| NOTE: the resulting iterator will always return the entire string followed by `No
let _ = "a,b".splitn(X, ',');
//~^ ERROR: `splitn` called with `0` splits
//~| NOTE: the resulting iterator will always return `None`
}
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