bors 40db258731 Auto merge of #87974 - steffahn:slice_split_size_hints, r=dtolnay ...

Test and fix `size_hint` for slice’s [r]split* iterators

Adds extensive test (of `size_hint`) for all the _[r]split*_ iterators.
Fixes `size_hint` upper bound for _split_inclusive*_ iterators which was one higher than necessary for non-empty slices.
Fixes `size_hint` lower bound for _[r]splitn*_ iterators when _n == 0_, which was one too high.

**Lower bound being one too high was a logic error, violating the correctness condition of `size_hint`.**

_Edit:_ I’ve opened an issue for that bug, so this PR fixes #87978

2021-08-15 04:48:42 +00:00

..

arc.rs

Add Weak may_dangle tests

2021-05-20 19:42:29 -07:00

binary_heap.rs

Fix may not to appropriate might not or must not

2021-07-29 01:15:20 -04:00

borrow.rs

…

boxed.rs

…

btree_set_hash.rs

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const_fns.rs

Moved ui test

2021-08-13 09:28:51 +00:00

cow_str.rs

…

fmt.rs

…

heap.rs

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lib.rs

allow incomplete features for now

2021-08-13 09:28:52 +00:00

linked_list.rs

…

rc.rs

Add Weak may_dangle tests

2021-05-20 19:42:29 -07:00

slice.rs

Improve wording, correct -> tight.

2021-08-13 15:27:30 +02:00

str.rs

Add test for the fix

2021-07-11 17:47:57 +02:00

string.rs

Use assert_matches! instead of if let {} else

2021-08-07 14:48:27 +01:00

vec_deque.rs

Use assert_matches! instead of if let {} else

2021-08-07 14:48:27 +01:00

vec.rs

Use assert_matches! instead of if let {} else

2021-08-07 14:48:27 +01:00