diff options
| -rw-r--r-- | src/libstd/ffi/c_str.rs | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/libstd/ffi/c_str.rs b/src/libstd/ffi/c_str.rs index 65f4e0cafe0..29d86e7146e 100644 --- a/src/libstd/ffi/c_str.rs +++ b/src/libstd/ffi/c_str.rs @@ -935,8 +935,10 @@ impl CStr { /// Wraps a raw C string with a safe C string wrapper. /// /// This function will wrap the provided `ptr` with a `CStr` wrapper, which - /// allows inspection and interoperation of non-owned C strings. This method - /// is unsafe for a number of reasons: + /// allows inspection and interoperation of non-owned C strings. The total + /// size of the raw C string must be smaller than `isize::MAX` **bytes** + /// in memory due to calling the slice::from_raw_parts function. + /// This method is unsafe for a number of reasons: /// /// * There is no guarantee to the validity of `ptr`. /// * The returned lifetime is not guaranteed to be the actual lifetime of |