Less unwrap() in documentation

1 files changed, 6 insertions, 3 deletions

diff --git a/library/core/src/ptr/const_ptr.rs b/library/core/src/ptr/const_ptr.rs
index f100adecbbb..ac905eceaa8 100644
--- a/library/core/src/ptr/const_ptr.rs
+++ b/library/core/src/ptr/const_ptr.rs
@@ -502,11 +502,12 @@ impl<T: ?Sized> *const T {
     /// let mut out = String::new();
     /// while ptr != end_rounded_up {
     ///     unsafe {
-    ///         write!(&mut out, "{}, ", *ptr).unwrap();
+    ///         write!(&mut out, "{}, ", *ptr)?;
     ///     }
     ///     ptr = ptr.wrapping_offset(step);
     /// }
     /// assert_eq!(out.as_str(), "1, 3, 5, ");
+    /// # std::fmt::Result::Ok(())
     /// ```
     #[stable(feature = "ptr_wrapping_offset", since = "1.16.0")]
     #[must_use = "returns a new pointer rather than modifying its argument"]
@@ -1125,11 +1126,12 @@ impl<T: ?Sized> *const T {
     /// let mut out = String::new();
     /// while ptr != end_rounded_up {
     ///     unsafe {
-    ///         write!(&mut out, "{}, ", *ptr).unwrap();
+    ///         write!(&mut out, "{}, ", *ptr)?;
     ///     }
     ///     ptr = ptr.wrapping_add(step);
     /// }
     /// assert_eq!(out, "1, 3, 5, ");
+    /// # std::fmt::Result::Ok(())
     /// ```
     #[stable(feature = "pointer_methods", since = "1.26.0")]
     #[must_use = "returns a new pointer rather than modifying its argument"]
@@ -1203,11 +1205,12 @@ impl<T: ?Sized> *const T {
     /// let mut out = String::new();
     /// while ptr != start_rounded_down {
     ///     unsafe {
-    ///         write!(&mut out, "{}, ", *ptr).unwrap();
+    ///         write!(&mut out, "{}, ", *ptr)?;
     ///     }
     ///     ptr = ptr.wrapping_sub(step);
     /// }
     /// assert_eq!(out, "5, 3, 1, ");
+    /// # std::fmt::Result::Ok(())
     /// ```
     #[stable(feature = "pointer_methods", since = "1.26.0")]
     #[must_use = "returns a new pointer rather than modifying its argument"]