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Auto merge of #73032 - yoshuawuyts:stabilize-leading_trailing_ones, r=Amanieu

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stabilize leading_trailing_ones

This PR stabilizes the `leading_trailing_ones` feature. It's been available on nightly since the start of the year, and hasn't had any issues since. It seems unlikely we'll want to change this, so following up on @djc's suggestion in https://github.com/rust-lang/rust/issues/57969#issuecomment-638405264 I'd like to put forward this PR to stabilize the feature and make it part of `1.46.0`. Thanks!

cc/ @djc @rust-lang/libs
This commit is contained in:
bors 2020-06-29 00:43:19 +00:00
commit c86039b333
2 changed files with 12 additions and 13 deletions
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24
src/libcore/num/mod.rs
View file

@ -457,13 +457,13 @@ $EndFeature, "
Basic usage: Basic usage:
``` ```
", $Feature, "#![feature(leading_trailing_ones)] ", $Feature, "let n = -1", stringify!($SelfT), ";
let n = -1", stringify!($SelfT), ";
assert_eq!(n.leading_ones(), ", stringify!($BITS), ");", assert_eq!(n.leading_ones(), ", stringify!($BITS), ");",
$EndFeature, " $EndFeature, "
```"), ```"),
#[unstable(feature = "leading_trailing_ones", issue = "57969")] #[stable(feature = "leading_trailing_ones", since = "1.46.0")]
#[rustc_const_stable(feature = "leading_trailing_ones", since = "1.46.0")]
#[inline] #[inline]
pub const fn leading_ones(self) -> u32 { pub const fn leading_ones(self) -> u32 {
(self as $UnsignedT).leading_ones() (self as $UnsignedT).leading_ones()
@ -478,13 +478,13 @@ $EndFeature, "
Basic usage: Basic usage:
``` ```
", $Feature, "#![feature(leading_trailing_ones)] ", $Feature, "let n = 3", stringify!($SelfT), ";
let n = 3", stringify!($SelfT), ";
assert_eq!(n.trailing_ones(), 2);", assert_eq!(n.trailing_ones(), 2);",
$EndFeature, " $EndFeature, "
```"), ```"),
#[unstable(feature = "leading_trailing_ones", issue = "57969")] #[stable(feature = "leading_trailing_ones", since = "1.46.0")]
#[rustc_const_stable(feature = "leading_trailing_ones", since = "1.46.0")]
#[inline] #[inline]
pub const fn trailing_ones(self) -> u32 { pub const fn trailing_ones(self) -> u32 {
(self as $UnsignedT).trailing_ones() (self as $UnsignedT).trailing_ones()
@ -2695,12 +2695,12 @@ assert_eq!(n.trailing_zeros(), 3);", $EndFeature, "
Basic usage: Basic usage:
``` ```
", $Feature, "#![feature(leading_trailing_ones)] ", $Feature, "let n = !(", stringify!($SelfT), "::MAX >> 2);
let n = !(", stringify!($SelfT), "::MAX >> 2);
assert_eq!(n.leading_ones(), 2);", $EndFeature, " assert_eq!(n.leading_ones(), 2);", $EndFeature, "
```"), ```"),
#[unstable(feature = "leading_trailing_ones", issue = "57969")] #[stable(feature = "leading_trailing_ones", since = "1.46.0")]
#[rustc_const_stable(feature = "leading_trailing_ones", since = "1.46.0")]
#[inline] #[inline]
pub const fn leading_ones(self) -> u32 { pub const fn leading_ones(self) -> u32 {
(!self).leading_zeros() (!self).leading_zeros()
@ -2716,12 +2716,12 @@ of `self`.
Basic usage: Basic usage:
``` ```
", $Feature, "#![feature(leading_trailing_ones)] ", $Feature, "let n = 0b1010111", stringify!($SelfT), ";
let n = 0b1010111", stringify!($SelfT), ";
assert_eq!(n.trailing_ones(), 3);", $EndFeature, " assert_eq!(n.trailing_ones(), 3);", $EndFeature, "
```"), ```"),
#[unstable(feature = "leading_trailing_ones", issue = "57969")] #[stable(feature = "leading_trailing_ones", since = "1.46.0")]
#[rustc_const_stable(feature = "leading_trailing_ones", since = "1.46.0")]
#[inline] #[inline]
pub const fn trailing_ones(self) -> u32 { pub const fn trailing_ones(self) -> u32 {
(!self).trailing_zeros() (!self).trailing_zeros()

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

@ -40,7 +40,6 @@
#![feature(const_raw_ptr_deref)] #![feature(const_raw_ptr_deref)]
#![feature(never_type)] #![feature(never_type)]
#![feature(unwrap_infallible)] #![feature(unwrap_infallible)]
#![feature(leading_trailing_ones)]
#![feature(const_forget)] #![feature(const_forget)]
#![feature(option_unwrap_none)] #![feature(option_unwrap_none)]
#![feature(peekable_next_if)] #![feature(peekable_next_if)]