rust/library/core/tests
Matthias Krüger 60625a6ef0
Rollup merge of #88858 - spektom:to_lower_upper_rev, r=dtolnay
Allow reverse iteration of lowercase'd/uppercase'd chars

The PR implements `DoubleEndedIterator` trait for `ToLowercase` and `ToUppercase`.

This enables reverse iteration of lowercase/uppercase variants of character sequences.
One of use cases:  determining whether a char sequence is a suffix of another one.

Example:

```rust
fn endswith_ignore_case(s1: &str, s2: &str) -> bool {
    for eob in s1
        .chars()
        .flat_map(|c| c.to_lowercase())
        .rev()
        .zip_longest(s2.chars().flat_map(|c| c.to_lowercase()).rev())
    {
        match eob {
            EitherOrBoth::Both(c1, c2) => {
                if c1 != c2 {
                    return false;
                }
            }
            EitherOrBoth::Left(_) => return true,
            EitherOrBoth::Right(_) => return false,
        }
    }
    true
}
```
2021-12-23 00:28:51 +01:00
..
fmt Rollup merge of #86479 - exphp-forks:float-debug-exponential, r=yaahc 2021-10-20 04:35:10 +09:00
hash move object safety test to library/core 2021-08-15 13:00:25 -04:00
iter Use IntoIterator for array impl everywhere. 2021-12-04 19:40:33 +01:00
num Revert "Temporarily rename int_roundings functions to avoid conflicts" 2021-11-22 15:49:04 -05:00
ops Expand the docs for ops::ControlFlow a bit 2021-02-06 22:36:05 -08:00
alloc.rs mv std libs to library/ 2020-07-27 19:51:13 -05:00
any.rs Add test for issue 84666. 2021-06-03 16:13:45 +02:00
array.rs Auto merge of #91838 - scottmcm:array-slice-eq-via-arrays-not-slices, r=dtolnay 2021-12-17 19:17:29 +00:00
ascii.rs Add #[must_use] to expensive computations 2021-10-12 23:27:17 -04:00
atomic.rs Make more From impls const 2021-10-18 19:19:28 +09:00
bool.rs Constify bool::then{,_some} 2021-12-15 00:11:23 +08:00
cell.rs Make more From impls const 2021-10-18 19:19:28 +09:00
char.rs Rollup merge of #88858 - spektom:to_lower_upper_rev, r=dtolnay 2021-12-23 00:28:51 +01:00
clone.rs Fix borrow and deref 2021-03-03 11:23:29 +01:00
cmp.rs Disable test on bootstrap compiler 2021-12-16 22:11:17 -08:00
const_ptr.rs Revert "Revert tests added by PR 81167." 2021-06-27 12:05:17 +02:00
convert.rs Revert "Auto merge of #89450 - usbalbin:const_try_revert, r=oli-obk" 2021-12-12 12:34:59 +08:00
future.rs Update library/core/tests/future.rs 2021-12-10 05:07:52 -08:00
intrinsics.rs Make intrinsics::write_bytes const 2021-11-24 13:05:26 +09:00
lazy.rs Make more From impls const 2021-10-18 19:19:28 +09:00
lib.rs Constify (most) Option methods 2021-12-17 20:46:47 +08:00
macros.rs Allow leading pipe in matches!() patterns. 2021-07-15 22:05:45 +03:00
manually_drop.rs Test ManuallyDrop::clone_from. 2021-07-05 11:55:45 +00:00
mem.rs Add test for const MaybeUninit 2021-11-28 01:31:25 -05:00
nonzero.rs Make From impls of NonZero integer const. 2021-10-20 12:04:58 +09:00
ops.rs Expand the docs for ops::ControlFlow a bit 2021-02-06 22:36:05 -08:00
option.rs Constify (most) Option methods 2021-12-17 20:46:47 +08:00
pattern.rs mv std libs to library/ 2020-07-27 19:51:13 -05:00
pin.rs Make some methods of Pin<&mut T> unstable const 2020-09-18 19:23:50 +02:00
ptr.rs Make (*mut T)::write_bytes const 2021-12-12 14:02:53 +09:00
result.rs Make Result::as_mut const 2021-10-17 18:39:54 +09:00
simd.rs Force splatting in SIMD test 2021-12-02 19:22:00 -08:00
slice.rs Add rsplit_array variants to slices and arrays 2021-12-10 21:34:19 +01:00
str_lossy.rs mv std libs to library/ 2020-07-27 19:51:13 -05:00
str.rs mv std libs to library/ 2020-07-27 19:51:13 -05:00
task.rs Move const tests for Poll to library\core 2020-09-04 01:04:34 +02:00
time.rs Make Duration's Debug format pad to width 2021-09-16 03:09:31 +02:00
tuple.rs mv std libs to library/ 2020-07-27 19:51:13 -05:00
unicode.rs Make ui test that are run-pass and do not test the compiler itself library tests 2020-11-30 02:47:32 +01:00