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Auto merge of #23293 - tbu-:pr_additive_multiplicative, r=alexcrichton

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Previously it could not be implemented for types outside `libcore/iter.rs` due
to coherence issues.
This commit is contained in:
bors
2015-04-08 00:42:10 +00:00
parent d9146bf8ba 97f24a8596
commit dd6c4a8f15
16 changed files with 89 additions and 133 deletions
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12
src/libcoretest/iter.rs
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@@ -329,17 +329,17 @@ fn test_iterator_len() {
#[test]
fn test_iterator_sum() {
let v: &[i32] = &[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
assert_eq!(v[..4].iter().cloned().sum(), 6);
assert_eq!(v.iter().cloned().sum(), 55);
assert_eq!(v[..0].iter().cloned().sum(), 0);
assert_eq!(v[..4].iter().cloned().sum::<i32>(), 6);
assert_eq!(v.iter().cloned().sum::<i32>(), 55);
assert_eq!(v[..0].iter().cloned().sum::<i32>(), 0);
}
#[test]
fn test_iterator_product() {
let v: &[i32] = &[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
assert_eq!(v[..4].iter().cloned().product(), 0);
assert_eq!(v[1..5].iter().cloned().product(), 24);
assert_eq!(v[..0].iter().cloned().product(), 1);
assert_eq!(v[..4].iter().cloned().product::<i32>(), 0);
assert_eq!(v[1..5].iter().cloned().product::<i32>(), 24);
assert_eq!(v[..0].iter().cloned().product::<i32>(), 1);
}
#[test]