bors 5349e69ae2 Auto merge of #64047 - timvermeulen:cmp_min_max_by, r=cuviper ... Add `cmp::{min_by, min_by_key, max_by, max_by_key}` This adds the following functions to `core::cmp`: - `min_by` - `min_by_key` - `max_by` - `max_by_key` `min_by` and `max_by` are somewhat trivial to implement, but not entirely because `min_by` returns the first value in case the two are equal (and `max_by` the second). `min` and `max` can be implemented in terms of `min_by` and `max_by`, but not as easily the other way around. To give an example of why I think these functions could be useful: the `Iterator::{min_by, min_by_key, max_by, max_by_key}` methods all currently hard-code the behavior mentioned above which is an ever so small duplication of logic. If we delegate them to `cmp::{min_by, max_by}` methods instead, we get the correct behavior for free. (edit: this is now included in the PR) I added `min_by_key` / `max_by_key` for consistency's sake but I wouldn't mind removing them. I don't have a particular use case in mind for them, and `min_by` / `max_by` seem to be more useful. Tracking issue: #64460		2019-09-21 04:21:25 +00:00
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fmt	Rollup merge of #60458 - KodrAus:debug_map_entry, r=alexcrichton	2019-07-09 04:52:35 +02:00
hash	review or fix remaining miri failures in libcore	2019-02-13 18:21:13 +01:00
num	Miri is really slow	2019-08-09 11:18:40 +02:00
alloc.rs	Add const_unchecked_layout test to libcore/tests	2019-05-14 09:41:50 +02:00
any.rs	Remove licenses	2018-12-25 21:08:33 -07:00
array.rs	Remove licenses	2018-12-25 21:08:33 -07:00
ascii.rs	Fix mismatching Kleene operators	2019-07-03 00:37:25 +02:00
atomic.rs	Remove licenses	2018-12-25 21:08:33 -07:00
bool.rs	Add bool::then and bool::then_with	2019-09-07 15:49:27 +01:00
cell.rs	Deny rust_2018_idioms in libcore tests	2019-04-20 18:44:29 +02:00
char.rs	Remove copy paste error in char tests	2019-02-27 14:44:20 +01:00
clone.rs	Remove licenses	2018-12-25 21:08:33 -07:00
cmp.rs	Add cmp::{min_by, min_by_key, max_by, max_by_key}	2019-09-14 21:52:08 +02:00
intrinsics.rs	Remove licenses	2018-12-25 21:08:33 -07:00
iter.rs	Rollup merge of #64121 - timvermeulen:iter_step_by_internal, r=scottmcm	2019-09-09 17:42:24 +02:00
lib.rs	Add cmp::{min_by, min_by_key, max_by, max_by_key}	2019-09-14 21:52:08 +02:00
manually_drop.rs	Remove licenses	2018-12-25 21:08:33 -07:00
mem.rs	Remove licenses	2018-12-25 21:08:33 -07:00
nonzero.rs	fixed tests again	2019-02-28 21:00:41 +01:00
ops.rs	Import Bound in tests	2019-05-31 16:56:26 -05:00
option.rs	renamed inner_deref feature's deref*() methods as_deref*() as per discussion https://github.com/rust-lang/rust/issues/50264	2019-07-18 15:17:30 +09:00
pattern.rs	Fix mismatching Kleene operators	2019-07-03 00:37:25 +02:00
ptr.rs	fix slice comparison	2019-08-05 15:30:08 +02:00
result.rs	renamed inner_deref feature's deref*() methods as_deref*() as per discussion https://github.com/rust-lang/rust/issues/50264	2019-07-18 15:17:30 +09:00
slice.rs	Rollup merge of #63265 - JohnTitor:implement-nth-back-for-chunksexactmut, r=scottmcm	2019-08-20 16:26:37 +02:00
str.rs	Remove licenses	2018-12-25 21:08:33 -07:00
str_lossy.rs	Remove licenses	2018-12-25 21:08:33 -07:00
time.rs	Improve test output for libcore/time	2019-08-09 12:47:27 +05:30
tuple.rs	Refactor tuple comparison tests	2019-03-25 13:00:57 -04:00