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#![cfg_attr(feature = "nightly_features", allow(incomplete_features))]
#![cfg_attr(feature = "nightly_features", feature(generic_const_exprs))]
extern crate iter_fixed;
use iter_fixed::IntoIteratorFixed;
#[test]
fn test() {
let res: [_; 4] = [1u32, 2, 3, 4]
.into_iter_fixed()
.zip([4u32, 3, 2, 1])
.map(|(a, b)| a + b)
.collect();
assert_eq!(res, [5, 5, 5, 5]);
let res: [(_, _); 3] = [1, 2, 3]
.into_iter_fixed()
.zip(core::iter::repeat(42))
.collect();
assert_eq!(res, [(1, 42), (2, 42), (3, 42)]);
}
#[cfg(feature = "nightly_features")]
#[test]
fn test_changing_length() {
let res: [_; 3] = [1, 2, 3, 4].into_iter_fixed().skip::<1>().collect();
assert_eq!(res, [2, 3, 4]);
let res: [_; 3] = [1, 2, 3, 4, 5].into_iter_fixed().step_by::<2>().collect();
assert_eq!(res, [1, 3, 5]);
let res: [_; 3] = [1, 2, 3, 4, 5, 6]
.into_iter_fixed()
.step_by::<2>()
.collect();
assert_eq!(res, [1, 3, 5]);
let res: [_; 4] = [1, 2, 3, 4, 5, 6, 7]
.into_iter_fixed()
.step_by::<2>()
.collect();
assert_eq!(res, [1, 3, 5, 7]);
let res: [_; 4] = [1, 2].into_iter_fixed().chain([3, 4]).collect();
assert_eq!(res, [1, 2, 3, 4]);
let res: [_; 2] = [1, 2, 3, 4].into_iter_fixed().take::<2>().collect();
assert_eq!(res, [1, 2]);
let res: [_; 4] = [[1, 2], [3, 4]].into_iter_fixed().flatten().collect();
assert_eq!(res, [1, 2, 3, 4]);
let res: [_; 6] = [1, 2, 3].into_iter_fixed().flat_map(|x| [x, x]).collect();
assert_eq!(res, [1, 1, 2, 2, 3, 3]);
let res: [_; 6] = [1, 2, 3]
.into_iter_fixed()
.flat_map(|x| IntoIteratorFixed::<2>::into_iter_fixed(core::iter::repeat(x)))
.collect();
assert_eq!(res, [1, 1, 2, 2, 3, 3]);
}
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