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| author | Ralf Jung <post@ralfj.de> | 2021-07-31 11:37:48 +0200 |
|---|---|---|
| committer | Ralf Jung <post@ralfj.de> | 2021-07-31 11:37:48 +0200 |
| commit | 6aaa8327f9f47033f4958dbf634413ff0cd98a3e (patch) | |
| tree | a542f4d10bf68ebd56a52faa2f878216502b227a | |
| parent | 6b0b07d41f07e1ba5808693d900903499ccf7a32 (diff) | |
| download | rust-6aaa8327f9f47033f4958dbf634413ff0cd98a3e.tar.gz rust-6aaa8327f9f47033f4958dbf634413ff0cd98a3e.zip | |
mark a UB doctest as no_run
| -rw-r--r-- | library/core/src/ptr/non_null.rs | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/library/core/src/ptr/non_null.rs b/library/core/src/ptr/non_null.rs index 032df7f5a80..87c8674af0d 100644 --- a/library/core/src/ptr/non_null.rs +++ b/library/core/src/ptr/non_null.rs @@ -173,8 +173,14 @@ impl<T: ?Sized> NonNull<T> { /// /// let mut x = 0u32; /// let ptr = unsafe { NonNull::new_unchecked(&mut x as *mut _) }; + /// ``` + /// + /// *Incorrect* usage of this function: + /// + /// ```rust,no_run + /// use std::ptr::NonNull; /// - /// // NEVER DO THAT!!! + /// // NEVER DO THAT!!! This is undefined behavior. ⚠️ /// let ptr = unsafe { NonNull::<u32>::new_unchecked(std::ptr::null_mut()) }; /// ``` #[stable(feature = "nonnull", since = "1.25.0")] |