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| author | Alexis Bourget <alexis.bourget@gmail.com> | 2020-06-03 23:55:41 +0200 |
|---|---|---|
| committer | Alexis Bourget <alexis.bourget@gmail.com> | 2020-06-03 23:55:41 +0200 |
| commit | 87abe174c46bf10246369e63a36eccd6748b7dbe (patch) | |
| tree | ef41b0775579f422b3d71b39adfea5f1547d5623 /src/libstd | |
| parent | 00a7b56bab317d9f1aaa5255145ce3414081cbfe (diff) | |
| download | rust-87abe174c46bf10246369e63a36eccd6748b7dbe.tar.gz rust-87abe174c46bf10246369e63a36eccd6748b7dbe.zip | |
Added a warning to CString::into_raw too
Diffstat (limited to 'src/libstd')
| -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 |