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Rollup merge of #71886 - t-rapp:tr-saturating-funcs, r=dtolnay

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Stabilize saturating_abs and saturating_neg

Stabilizes the following signed integer functions with saturation mechanics:
 * saturating_abs()
 * saturating_neg()

Closes #59983
This commit is contained in:
Dylan DPC 2020-05-19 13:53:36 +02:00 • committed by GitHub
commit 4c48f5ab69
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3 changed files with 4 additions and 8 deletions
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10
src/libcore/num/mod.rs
View file

@ -1165,8 +1165,7 @@ instead of overflowing.
Basic usage:
```
", $Feature, "#![feature(saturating_neg)]
assert_eq!(100", stringify!($SelfT), ".saturating_neg(), -100);
", $Feature, "assert_eq!(100", stringify!($SelfT), ".saturating_neg(), -100);
assert_eq!((-100", stringify!($SelfT), ").saturating_neg(), 100);
assert_eq!(", stringify!($SelfT), "::MIN.saturating_neg(), ", stringify!($SelfT),
"::MAX);
@ -1175,7 +1174,7 @@ assert_eq!(", stringify!($SelfT), "::MAX.saturating_neg(), ", stringify!($SelfT)
$EndFeature, "
```"),
#[unstable(feature = "saturating_neg", issue = "59983")]
#[stable(feature = "saturating_neg", since = "1.45.0")]
#[rustc_const_unstable(feature = "const_saturating_int_methods", issue = "53718")]
#[inline]
pub const fn saturating_neg(self) -> Self {
@ -1192,8 +1191,7 @@ MIN` instead of overflowing.
Basic usage:
```
", $Feature, "#![feature(saturating_neg)]
assert_eq!(100", stringify!($SelfT), ".saturating_abs(), 100);
", $Feature, "assert_eq!(100", stringify!($SelfT), ".saturating_abs(), 100);
assert_eq!((-100", stringify!($SelfT), ").saturating_abs(), 100);
assert_eq!(", stringify!($SelfT), "::MIN.saturating_abs(), ", stringify!($SelfT),
"::MAX);
@ -1202,7 +1200,7 @@ assert_eq!((", stringify!($SelfT), "::MIN + 1).saturating_abs(), ", stringify!($
$EndFeature, "
```"),
#[unstable(feature = "saturating_neg", issue = "59983")]
#[stable(feature = "saturating_neg", since = "1.45.0")]
#[rustc_const_unstable(feature = "const_saturating_int_methods", issue = "53718")]
#[inline]
pub const fn saturating_abs(self) -> Self {

1
src/libcore/tests/lib.rs
View file

@ -17,7 +17,6 @@
#![feature(pattern)]
#![feature(range_is_empty)]
#![feature(raw)]
#![feature(saturating_neg)]
#![feature(sort_internals)]
#![feature(slice_partition_at_index)]
#![feature(specialization)]

1
src/test/ui/consts/const-int-arithmetic.rs
View file

@ -1,6 +1,5 @@
// run-pass
#![feature(saturating_neg)]
#![feature(const_checked_int_methods)]
#![feature(const_euclidean_int_methods)]
#![feature(const_overflowing_int_methods)]