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Make wrapping arithmetic const

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Co-Authored-By: 9999years <rbt@sent.as>
This commit is contained in:
Dylan MacKenzie 2020-02-03 12:53:34 -08:00
parent b422a19c43
commit b46d1d2718
1 changed files with 8 additions and 4 deletions
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12
src/libcore/num/mod.rs
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@ -1280,10 +1280,11 @@ assert_eq!((-128i8).wrapping_div(-1), -128);",
$EndFeature, "
```"),
#[stable(feature = "num_wrapping", since = "1.2.0")]
#[rustc_const_unstable(feature = "const_int_wrapping", issue = "53718")]
#[must_use = "this returns the result of the operation, \
without modifying the original"]
#[inline]
pub fn wrapping_div(self, rhs: Self) -> Self {
pub const fn wrapping_div(self, rhs: Self) -> Self {
self.overflowing_div(rhs).0
}
}
@ -1340,10 +1341,11 @@ assert_eq!((-128i8).wrapping_rem(-1), 0);",
$EndFeature, "
```"),
#[stable(feature = "num_wrapping", since = "1.2.0")]
#[rustc_const_unstable(feature = "const_int_wrapping", issue = "53718")]
#[must_use = "this returns the result of the operation, \
without modifying the original"]
#[inline]
pub fn wrapping_rem(self, rhs: Self) -> Self {
pub const fn wrapping_rem(self, rhs: Self) -> Self {
self.overflowing_rem(rhs).0
}
}
@ -3320,10 +3322,11 @@ Basic usage:
", $Feature, "assert_eq!(100", stringify!($SelfT), ".wrapping_div(10), 10);", $EndFeature, "
```"),
#[stable(feature = "num_wrapping", since = "1.2.0")]
#[rustc_const_unstable(feature = "const_int_wrapping", issue = "53718")]
#[must_use = "this returns the result of the operation, \
without modifying the original"]
#[inline]
pub fn wrapping_div(self, rhs: Self) -> Self {
pub const fn wrapping_div(self, rhs: Self) -> Self {
self / rhs
}
}
@ -3371,10 +3374,11 @@ Basic usage:
", $Feature, "assert_eq!(100", stringify!($SelfT), ".wrapping_rem(10), 0);", $EndFeature, "
```"),
#[stable(feature = "num_wrapping", since = "1.2.0")]
#[rustc_const_unstable(feature = "const_int_wrapping", issue = "53718")]
#[must_use = "this returns the result of the operation, \
without modifying the original"]
#[inline]
pub fn wrapping_rem(self, rhs: Self) -> Self {
pub const fn wrapping_rem(self, rhs: Self) -> Self {
self % rhs
}
}