diff options
| -rw-r--r-- | src/libstd/ffi/c_str.rs | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/libstd/ffi/c_str.rs b/src/libstd/ffi/c_str.rs index 3d7ac724fbd..b324b161896 100644 --- a/src/libstd/ffi/c_str.rs +++ b/src/libstd/ffi/c_str.rs @@ -446,6 +446,11 @@ impl CString { /// /// Failure to call [`from_raw`] will lead to a memory leak. /// + /// The C side must **not** modify the length of the string (by writing a + /// `NULL` somewhere inside the string or removing the final one) before + /// it makes it back into Rust using [`from_raw`]. See the safety section + /// in [`from_raw`]. + /// /// [`from_raw`]: #method.from_raw /// /// # Examples |