Rollup merge of rust-lang#113064 - marcospb19:add-note-in-vec-swap-do…

…cs, r=Mark-Simulacrum std: edit [T]::swap docs Add a note about what happens when index arguments are equal.
matthiaskrgr · Jul 8, 2023 · f98b417 · f98b417
2 parents 6e20345 + 30c61ee
commit f98b417
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/library/core/src/slice/mod.rs b/library/core/src/slice/mod.rs
@@ -851,6 +851,8 @@ impl<T> [T] {
 
     /// Swaps two elements in the slice.
     ///
+    /// If `a` equals to `b`, it's guaranteed that elements won't change value.
+    ///
     /// # Arguments
     ///
     /// * a - The index of the first element