diff options
| -rw-r--r-- | library/alloc/src/alloc.rs | 3 | ||||
| -rw-r--r-- | library/alloc/src/sync.rs | 1 |
2 files changed, 4 insertions, 0 deletions
diff --git a/library/alloc/src/alloc.rs b/library/alloc/src/alloc.rs index 4a5b0fcf037..66ef92558d8 100644 --- a/library/alloc/src/alloc.rs +++ b/library/alloc/src/alloc.rs @@ -81,6 +81,7 @@ pub use std::alloc::Global; /// } /// ``` #[stable(feature = "global_alloc", since = "1.28.0")] +#[must_use = "losing the pointer will leak memory"] #[inline] pub unsafe fn alloc(layout: Layout) -> *mut u8 { unsafe { __rust_alloc(layout.size(), layout.align()) } @@ -117,6 +118,7 @@ pub unsafe fn dealloc(ptr: *mut u8, layout: Layout) { /// /// See [`GlobalAlloc::realloc`]. #[stable(feature = "global_alloc", since = "1.28.0")] +#[must_use = "losing the pointer will leak memory"] #[inline] pub unsafe fn realloc(ptr: *mut u8, layout: Layout, new_size: usize) -> *mut u8 { unsafe { __rust_realloc(ptr, layout.size(), layout.align(), new_size) } @@ -150,6 +152,7 @@ pub unsafe fn realloc(ptr: *mut u8, layout: Layout, new_size: usize) -> *mut u8 /// } /// ``` #[stable(feature = "global_alloc", since = "1.28.0")] +#[must_use = "losing the pointer will leak memory"] #[inline] pub unsafe fn alloc_zeroed(layout: Layout) -> *mut u8 { unsafe { __rust_alloc_zeroed(layout.size(), layout.align()) } diff --git a/library/alloc/src/sync.rs b/library/alloc/src/sync.rs index b75e9a2f3c7..00bd69aad4c 100644 --- a/library/alloc/src/sync.rs +++ b/library/alloc/src/sync.rs @@ -804,6 +804,7 @@ impl<T: ?Sized> Arc<T> { /// let x_ptr = Arc::into_raw(x); /// assert_eq!(unsafe { &*x_ptr }, "hello"); /// ``` + #[must_use = "losing the pointer will leak memory"] #[stable(feature = "rc_raw", since = "1.17.0")] pub fn into_raw(this: Self) -> *const T { let ptr = Self::as_ptr(&this); |