diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:43 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:43 +0000 |
commit | 3e3e70d529d8c7d7c4d7bc4fefc9f109393b9245 (patch) | |
tree | daf049b282ab10e8c3d03e409b3cd84ff3f7690c /library/core/src/ffi | |
parent | Adding debian version 1.68.2+dfsg1-1. (diff) | |
download | rustc-3e3e70d529d8c7d7c4d7bc4fefc9f109393b9245.tar.xz rustc-3e3e70d529d8c7d7c4d7bc4fefc9f109393b9245.zip |
Merging upstream version 1.69.0+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'library/core/src/ffi')
-rw-r--r-- | library/core/src/ffi/c_str.rs | 27 | ||||
-rw-r--r-- | library/core/src/ffi/mod.rs | 1 |
2 files changed, 18 insertions, 10 deletions
diff --git a/library/core/src/ffi/c_str.rs b/library/core/src/ffi/c_str.rs index 15dd9ea7e..fe8abdf7f 100644 --- a/library/core/src/ffi/c_str.rs +++ b/library/core/src/ffi/c_str.rs @@ -1,4 +1,5 @@ use crate::cmp::Ordering; +use crate::error::Error; use crate::ffi::c_char; use crate::fmt; use crate::intrinsics; @@ -129,10 +130,12 @@ impl FromBytesWithNulError { const fn not_nul_terminated() -> FromBytesWithNulError { FromBytesWithNulError { kind: FromBytesWithNulErrorKind::NotNulTerminated } } +} - #[doc(hidden)] - #[unstable(feature = "cstr_internals", issue = "none")] - pub fn __description(&self) -> &str { +#[stable(feature = "frombyteswithnulerror_impls", since = "1.17.0")] +impl Error for FromBytesWithNulError { + #[allow(deprecated)] + fn description(&self) -> &str { match self.kind { FromBytesWithNulErrorKind::InteriorNul(..) => { "data provided contains an interior nul byte" @@ -150,10 +153,10 @@ impl FromBytesWithNulError { /// This error is created by the [`CStr::from_bytes_until_nul`] method. /// #[derive(Clone, PartialEq, Eq, Debug)] -#[unstable(feature = "cstr_from_bytes_until_nul", issue = "95027")] +#[stable(feature = "cstr_from_bytes_until_nul", since = "1.69.0")] pub struct FromBytesUntilNulError(()); -#[unstable(feature = "cstr_from_bytes_until_nul", issue = "95027")] +#[stable(feature = "cstr_from_bytes_until_nul", since = "1.69.0")] impl fmt::Display for FromBytesUntilNulError { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { write!(f, "data provided does not contain a nul") @@ -180,7 +183,7 @@ impl Default for &CStr { impl fmt::Display for FromBytesWithNulError { #[allow(deprecated, deprecated_in_future)] fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - f.write_str(self.__description())?; + f.write_str(self.description())?; if let FromBytesWithNulErrorKind::InteriorNul(pos) = self.kind { write!(f, " at byte pos {pos}")?; } @@ -306,8 +309,6 @@ impl CStr { /// /// # Examples /// ``` - /// #![feature(cstr_from_bytes_until_nul)] - /// /// use std::ffi::CStr; /// /// let mut buffer = [0u8; 16]; @@ -322,8 +323,9 @@ impl CStr { /// assert_eq!(c_str.to_str().unwrap(), "AAAAAAAA"); /// ``` /// - #[unstable(feature = "cstr_from_bytes_until_nul", issue = "95027")] - #[rustc_const_unstable(feature = "cstr_from_bytes_until_nul", issue = "95027")] + #[rustc_allow_const_fn_unstable(const_slice_index)] + #[stable(feature = "cstr_from_bytes_until_nul", since = "1.69.0")] + #[rustc_const_stable(feature = "cstr_from_bytes_until_nul", since = "1.69.0")] pub const fn from_bytes_until_nul(bytes: &[u8]) -> Result<&CStr, FromBytesUntilNulError> { let nul_pos = memchr::memchr(0, bytes); match nul_pos { @@ -455,6 +457,10 @@ impl CStr { /// to a contiguous region of memory terminated with a 0 byte to represent /// the end of the string. /// + /// The type of the returned pointer is + /// [`*const c_char`][crate::ffi::c_char], and whether it's + /// an alias for `*const i8` or `*const u8` is platform-specific. + /// /// **WARNING** /// /// The returned pointer is read-only; writing to it (including passing it @@ -468,6 +474,7 @@ impl CStr { /// # #![allow(unused_must_use)] #![allow(temporary_cstring_as_ptr)] /// use std::ffi::CString; /// + /// // Do not do this: /// let ptr = CString::new("Hello").expect("CString::new failed").as_ptr(); /// unsafe { /// // `ptr` is dangling diff --git a/library/core/src/ffi/mod.rs b/library/core/src/ffi/mod.rs index 76daceecd..27f665904 100644 --- a/library/core/src/ffi/mod.rs +++ b/library/core/src/ffi/mod.rs @@ -144,6 +144,7 @@ mod c_char_definition { ) ), all(target_os = "fuchsia", target_arch = "aarch64"), + all(target_os = "nto", target_arch = "aarch64"), target_os = "horizon" ))] { pub type c_char = u8; |