4 files changed, 12 insertions, 7 deletions
diff --git a/library/std/src/f32.rs b/library/std/src/f32.rs
index 3dd5b12507f..4127c4056f2 100644
--- a/library/std/src/f32.rs
+++ b/library/std/src/f32.rs
@@ -77,9 +77,11 @@ impl f32 {
     /// ```
     /// let f = 3.3_f32;
     /// let g = -3.3_f32;
+    /// let h = -3.7_f32;
     ///
     /// assert_eq!(f.round(), 3.0);
     /// assert_eq!(g.round(), -3.0);
+    /// assert_eq!(h.round(), -4.0);
     /// ```
     #[rustc_allow_incoherent_impl]
     #[must_use = "method returns a new number and does not mutate the original value"]
@@ -275,7 +277,7 @@ impl f32 {
     /// This result is not an element of the function's codomain, but it is the
     /// closest floating point number in the real numbers and thus fulfills the
     /// property `self == self.div_euclid(rhs) * rhs + self.rem_euclid(rhs)`
-    /// approximatively.
+    /// approximately.
     ///
     /// # Examples
     ///
diff --git a/library/std/src/f64.rs b/library/std/src/f64.rs
index 31351a87978..cc64258da60 100644
--- a/library/std/src/f64.rs
+++ b/library/std/src/f64.rs
@@ -77,9 +77,11 @@ impl f64 {
     /// ```
     /// let f = 3.3_f64;
     /// let g = -3.3_f64;
+    /// let h = -3.7_f64;
     ///
     /// assert_eq!(f.round(), 3.0);
     /// assert_eq!(g.round(), -3.0);
+    /// assert_eq!(h.round(), -4.0);
     /// ```
     #[rustc_allow_incoherent_impl]
     #[must_use = "method returns a new number and does not mutate the original value"]
@@ -275,7 +277,7 @@ impl f64 {
     /// This result is not an element of the function's codomain, but it is the
     /// closest floating point number in the real numbers and thus fulfills the
     /// property `self == self.div_euclid(rhs) * rhs + self.rem_euclid(rhs)`
-    /// approximatively.
+    /// approximately.
     ///
     /// # Examples
     ///
diff --git a/library/std/src/sys/windows/c.rs b/library/std/src/sys/windows/c.rs
index fc2dc42833d..81461de4f72 100644
--- a/library/std/src/sys/windows/c.rs
+++ b/library/std/src/sys/windows/c.rs
@@ -363,7 +363,7 @@ impl IO_STATUS_BLOCK {
 
 pub type LPOVERLAPPED_COMPLETION_ROUTINE = unsafe extern "system" fn(
     dwErrorCode: DWORD,
-    dwNumberOfBytesTransfered: DWORD,
+    dwNumberOfBytesTransferred: DWORD,
     lpOverlapped: *mut OVERLAPPED,
 );
 
diff --git a/library/std/src/sys/windows/pipe.rs b/library/std/src/sys/windows/pipe.rs
index 013c776c476..9f26acc4520 100644
--- a/library/std/src/sys/windows/pipe.rs
+++ b/library/std/src/sys/windows/pipe.rs
@@ -324,17 +324,18 @@ impl AnonPipe {
         let mut async_result: Option<AsyncResult> = None;
         struct AsyncResult {
             error: u32,
-            transfered: u32,
+            transferred: u32,
         }
 
         // STEP 3: The callback.
         unsafe extern "system" fn callback(
             dwErrorCode: u32,
-            dwNumberOfBytesTransfered: u32,
+            dwNumberOfBytesTransferred: u32,
             lpOverlapped: *mut c::OVERLAPPED,
         ) {
             // Set `async_result` using a pointer smuggled through `hEvent`.
-            let result = AsyncResult { error: dwErrorCode, transfered: dwNumberOfBytesTransfered };
+            let result =
+                AsyncResult { error: dwErrorCode, transferred: dwNumberOfBytesTransferred };
             *(*lpOverlapped).hEvent.cast::<Option<AsyncResult>>() = Some(result);
         }
 
@@ -365,7 +366,7 @@ impl AnonPipe {
         // STEP 4: Return the result.
         // `async_result` is always `Some` at this point
         match result.error {
-            c::ERROR_SUCCESS => Ok(result.transfered as usize),
+            c::ERROR_SUCCESS => Ok(result.transferred as usize),
             error => Err(io::Error::from_raw_os_error(error as _)),
         }
     }