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clarify CStr lack of layout guarnatees

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This commit is contained in:
Ralf Jung 2023-08-16 09:37:06 +02:00
parent 4e3ce0e782
commit 3e9679e861
1 changed files with 4 additions and 4 deletions
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8
library/core/src/ffi/c_str.rs
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@ -20,10 +20,10 @@ use crate::str;
/// in each pair are borrowed references; the latter are owned /// in each pair are borrowed references; the latter are owned
/// strings. /// strings.
/// ///
/// Note that this structure is **not** `repr(C)` and is not recommended to be /// Note that this structure does **not** have a guaranteed layout (the `repr(transparent)`
/// placed in the signatures of FFI functions. Instead, safe wrappers of FFI /// notwithstanding) and is not recommended to be placed in the signatures of FFI functions.
/// functions may leverage the unsafe [`CStr::from_ptr`] constructor to provide /// Instead, safe wrappers of FFI functions may leverage the unsafe [`CStr::from_ptr`] constructor
/// a safe interface to other consumers. /// to provide a safe interface to other consumers.
/// ///
/// [`CString`]: ../../std/ffi/struct.CString.html /// [`CString`]: ../../std/ffi/struct.CString.html
/// [`String`]: ../../std/string/struct.String.html /// [`String`]: ../../std/string/struct.String.html