Auto merge of rust-lang#119671 - matthiaskrgr:rollup-13vxv34, r=matth…

…iaskrgr

Rollup of 3 pull requests

Successful merges:

 - rust-lang#119654 (bump bootstrap dependencies)
 - rust-lang#119656 (document rounding behavior of rint/nearbyint for ties)
 - rust-lang#119657 (Fix typo in docs for slice::split_once, slice::rsplit_once)

r? `@ghost`
`@rustbot` modify labels: rollup

library/core/src/intrinsics.rs

@@ -1783,27 +1783,33 @@ extern "rust-intrinsic" {
     #[rustc_nounwind]
     pub fn truncf64(x: f64) -> f64;
 
-    /// Returns the nearest integer to an `f32`. May raise an inexact floating-point exception
-    /// if the argument is not an integer.
+    /// Returns the nearest integer to an `f32`. Changing the rounding mode is not possible in Rust,
+    /// so this rounds half-way cases to the number with an even least significant digit.
+    ///
+    /// May raise an inexact floating-point exception if the argument is not an integer.
     ///
     /// The stabilized version of this intrinsic is
     /// [`f32::round_ties_even`](../../std/primitive.f32.html#method.round_ties_even)
     #[rustc_nounwind]
     pub fn rintf32(x: f32) -> f32;
-    /// Returns the nearest integer to an `f64`. May raise an inexact floating-point exception
-    /// if the argument is not an integer.
+    /// Returns the nearest integer to an `f64`. Changing the rounding mode is not possible in Rust,
+    /// so this rounds half-way cases to the number with an even least significant digit.
+    ///
+    /// May raise an inexact floating-point exception if the argument is not an integer.
     ///
     /// The stabilized version of this intrinsic is
     /// [`f64::round_ties_even`](../../std/primitive.f64.html#method.round_ties_even)
     #[rustc_nounwind]
     pub fn rintf64(x: f64) -> f64;
 
-    /// Returns the nearest integer to an `f32`.
+    /// Returns the nearest integer to an `f32`. Changing the rounding mode is not possible in Rust,
+    /// so this rounds half-way cases to the number with an even least significant digit.
     ///
     /// This intrinsic does not have a stable counterpart.
     #[rustc_nounwind]
     pub fn nearbyintf32(x: f32) -> f32;
-    /// Returns the nearest integer to an `f64`.
+    /// Returns the nearest integer to an `f64`. Changing the rounding mode is not possible in Rust,
+    /// so this rounds half-way cases to the number with an even least significant digit.
     ///
     /// This intrinsic does not have a stable counterpart.
     #[rustc_nounwind]

library/core/src/slice/mod.rs

@@ -2483,7 +2483,7 @@ impl<T> [T] {
     /// Splits the slice on the first element that matches the specified
     /// predicate.
     ///
-    /// If any matching elements are resent in the slice, returns the prefix
+    /// If any matching elements are present in the slice, returns the prefix
     /// before the match and suffix after. The matching element itself is not
     /// included. If no elements match, returns `None`.
     ///
@@ -2511,7 +2511,7 @@ impl<T> [T] {
     /// Splits the slice on the last element that matches the specified
     /// predicate.
     ///
-    /// If any matching elements are resent in the slice, returns the prefix
+    /// If any matching elements are present in the slice, returns the prefix
     /// before the match and suffix after. The matching element itself is not
     /// included. If no elements match, returns `None`.
     ///