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Stabilize no_panic_pow #57873

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Jan 25, 2019
Merged

Stabilize no_panic_pow #57873

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24 changes: 8 additions & 16 deletions src/libcore/num/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -847,13 +847,12 @@ overflow occurred.
Basic usage:

```
#![feature(no_panic_pow)]
", $Feature, "assert_eq!(8", stringify!($SelfT), ".checked_pow(2), Some(64));
assert_eq!(", stringify!($SelfT), "::max_value().checked_pow(2), None);",
$EndFeature, "
```"),

#[unstable(feature = "no_panic_pow", issue = "48320")]
#[stable(feature = "no_panic_pow", since = "1.34.0")]
#[inline]
pub fn checked_pow(self, mut exp: u32) -> Option<Self> {
let mut base = self;
Expand Down Expand Up @@ -966,15 +965,14 @@ saturating at the numeric bounds instead of overflowing.
Basic usage:

```
#![feature(no_panic_pow)]
", $Feature, "use std::", stringify!($SelfT), ";

assert_eq!((-4", stringify!($SelfT), ").saturating_pow(3), -64);
assert_eq!(", stringify!($SelfT), "::MIN.saturating_pow(2), ", stringify!($SelfT), "::MAX);
assert_eq!(", stringify!($SelfT), "::MIN.saturating_pow(3), ", stringify!($SelfT), "::MIN);",
$EndFeature, "
```"),
#[unstable(feature = "no_panic_pow", issue = "48320")]
#[stable(feature = "no_panic_pow", since = "1.34.0")]
#[inline]
pub fn saturating_pow(self, exp: u32) -> Self {
match self.checked_pow(exp) {
Expand Down Expand Up @@ -1297,13 +1295,12 @@ wrapping around at the boundary of the type.
Basic usage:

```
#![feature(no_panic_pow)]
", $Feature, "assert_eq!(3", stringify!($SelfT), ".wrapping_pow(4), 81);
assert_eq!(3i8.wrapping_pow(5), -13);
assert_eq!(3i8.wrapping_pow(6), -39);",
$EndFeature, "
```"),
#[unstable(feature = "no_panic_pow", issue = "48320")]
#[stable(feature = "no_panic_pow", since = "1.34.0")]
#[inline]
pub fn wrapping_pow(self, mut exp: u32) -> Self {
let mut base = self;
Expand Down Expand Up @@ -1669,12 +1666,11 @@ whether an overflow happened.
Basic usage:

```
#![feature(no_panic_pow)]
", $Feature, "assert_eq!(3", stringify!($SelfT), ".overflowing_pow(4), (81, false));
assert_eq!(3i8.overflowing_pow(5), (-13, true));",
$EndFeature, "
```"),
#[unstable(feature = "no_panic_pow", issue = "48320")]
#[stable(feature = "no_panic_pow", since = "1.34.0")]
#[inline]
pub fn overflowing_pow(self, mut exp: u32) -> (Self, bool) {
let mut base = self;
Expand Down Expand Up @@ -2789,11 +2785,10 @@ overflow occurred.
Basic usage:

```
#![feature(no_panic_pow)]
", $Feature, "assert_eq!(2", stringify!($SelfT), ".checked_pow(5), Some(32));
assert_eq!(", stringify!($SelfT), "::max_value().checked_pow(2), None);", $EndFeature, "
```"),
#[unstable(feature = "no_panic_pow", issue = "48320")]
#[stable(feature = "no_panic_pow", since = "1.34.0")]
#[inline]
pub fn checked_pow(self, mut exp: u32) -> Option<Self> {
let mut base = self;
Expand Down Expand Up @@ -2893,14 +2888,13 @@ saturating at the numeric bounds instead of overflowing.
Basic usage:

```
#![feature(no_panic_pow)]
", $Feature, "use std::", stringify!($SelfT), ";

assert_eq!(4", stringify!($SelfT), ".saturating_pow(3), 64);
assert_eq!(", stringify!($SelfT), "::MAX.saturating_pow(2), ", stringify!($SelfT), "::MAX);",
$EndFeature, "
```"),
#[unstable(feature = "no_panic_pow", issue = "48320")]
#[stable(feature = "no_panic_pow", since = "1.34.0")]
#[inline]
pub fn saturating_pow(self, exp: u32) -> Self {
match self.checked_pow(exp) {
Expand Down Expand Up @@ -3178,11 +3172,10 @@ wrapping around at the boundary of the type.
Basic usage:

```
#![feature(no_panic_pow)]
", $Feature, "assert_eq!(3", stringify!($SelfT), ".wrapping_pow(5), 243);
assert_eq!(3u8.wrapping_pow(6), 217);", $EndFeature, "
```"),
#[unstable(feature = "no_panic_pow", issue = "48320")]
#[stable(feature = "no_panic_pow", since = "1.34.0")]
#[inline]
pub fn wrapping_pow(self, mut exp: u32) -> Self {
let mut base = self;
Expand Down Expand Up @@ -3497,11 +3490,10 @@ whether an overflow happened.
Basic usage:

```
#![feature(no_panic_pow)]
", $Feature, "assert_eq!(3", stringify!($SelfT), ".overflowing_pow(5), (243, false));
assert_eq!(3u8.overflowing_pow(6), (217, true));", $EndFeature, "
```"),
#[unstable(feature = "no_panic_pow", issue = "48320")]
#[stable(feature = "no_panic_pow", since = "1.34.0")]
#[inline]
pub fn overflowing_pow(self, mut exp: u32) -> (Self, bool) {
let mut base = self;
Expand Down