diff options
Diffstat (limited to 'src/libstd')
| -rw-r--r-- | src/libstd/ffi/c_str.rs | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/libstd/ffi/c_str.rs b/src/libstd/ffi/c_str.rs index 4bac9a4917d..3d7ac724fbd 100644 --- a/src/libstd/ffi/c_str.rs +++ b/src/libstd/ffi/c_str.rs @@ -395,6 +395,12 @@ impl CString { /// ownership of a string that was allocated by foreign code) is likely to lead /// to undefined behavior or allocator corruption. /// + /// It should be noted that the length isn't just "recomputed," but that + /// the recomputed length must match the original length from the + /// [`into_raw`] call. This means the [`into_raw`]/`from_raw` methods + /// should not be used when passing the string to C functions that can + /// modify the string's length. + /// /// > **Note:** If you need to borrow a string that was allocated by /// > foreign code, use [`CStr`]. If you need to take ownership of /// > a string that was allocated by foreign code, you will need to |