diff options
Diffstat (limited to 'library/std/src/alloc.rs')
| -rw-r--r-- | library/std/src/alloc.rs | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/library/std/src/alloc.rs b/library/std/src/alloc.rs index a05e0db3a..61c1ff578 100644 --- a/library/std/src/alloc.rs +++ b/library/std/src/alloc.rs @@ -68,7 +68,10 @@ pub use alloc_crate::alloc::*; /// The default memory allocator provided by the operating system. /// /// This is based on `malloc` on Unix platforms and `HeapAlloc` on Windows, -/// plus related functions. +/// plus related functions. However, it is not valid to mix use of the backing +/// system allocator with `System`, as this implementation may include extra +/// work, such as to serve alignment requests greater than the alignment +/// provided directly by the backing system allocator. /// /// This type implements the `GlobalAlloc` trait and Rust programs by default /// work as if they had this definition: |