add unsigned_abs to signed integers

This commit is contained in:
carbotaniuman 2020-07-25 15:15:12 -05:00
parent 2c28244cf0
commit 784dd22aac

View File

@ -1601,6 +1601,29 @@ $EndFeature, "
}
}
doc_comment! {
concat!("Computes the absolute value of `self` without any wrapping
or panicking.
# Examples
Basic usage:
```
", $Feature, "#![feature(unsigned_abs)]
assert_eq!(100", stringify!($SelfT), ".unsigned_abs(), 100", stringify!($UnsignedT), ");
assert_eq!((-100", stringify!($SelfT), ").unsigned_abs(), 100", stringify!($UnsignedT), ");
assert_eq!((-128i8).unsigned_abs(), 128u8);",
$EndFeature, "
```"),
#[unstable(feature = "unsigned_abs", issue = "74913")]
#[inline]
pub const fn unsigned_abs(self) -> $UnsignedT {
self.wrapping_abs() as $UnsignedT
}
}
doc_comment! {
concat!("Wrapping (modular) exponentiation. Computes `self.pow(exp)`,
wrapping around at the boundary of the type.