Adding upstream version 115.7.0esr.upstream/115.7.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 47 insertions, 0 deletions

diff --git a/third_party/rust/num-traits/src/ops/inv.rs b/third_party/rust/num-traits/src/ops/inv.rs
new file mode 100644
index 0000000000..7087d09d01
--- /dev/null
+++ b/third_party/rust/num-traits/src/ops/inv.rs
@@ -0,0 +1,47 @@
+/// Unary operator for retrieving the multiplicative inverse, or reciprocal, of a value.
+pub trait Inv {
+    /// The result after applying the operator.
+    type Output;
+
+    /// Returns the multiplicative inverse of `self`.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// use std::f64::INFINITY;
+    /// use num_traits::Inv;
+    ///
+    /// assert_eq!(7.0.inv() * 7.0, 1.0);
+    /// assert_eq!((-0.0).inv(), -INFINITY);
+    /// ```
+    fn inv(self) -> Self::Output;
+}
+
+impl Inv for f32 {
+    type Output = f32;
+    #[inline]
+    fn inv(self) -> f32 {
+        1.0 / self
+    }
+}
+impl Inv for f64 {
+    type Output = f64;
+    #[inline]
+    fn inv(self) -> f64 {
+        1.0 / self
+    }
+}
+impl<'a> Inv for &'a f32 {
+    type Output = f32;
+    #[inline]
+    fn inv(self) -> f32 {
+        1.0 / *self
+    }
+}
+impl<'a> Inv for &'a f64 {
+    type Output = f64;
+    #[inline]
+    fn inv(self) -> f64 {
+        1.0 / *self
+    }
+}