diff options
Diffstat (limited to 'library/core/src/char/methods.rs')
| -rw-r--r-- | library/core/src/char/methods.rs | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/library/core/src/char/methods.rs b/library/core/src/char/methods.rs index 7f3c998aaa5..6bedb0d0dc4 100644 --- a/library/core/src/char/methods.rs +++ b/library/core/src/char/methods.rs @@ -674,8 +674,9 @@ impl char { /// 'ß'.encode_utf8(&mut b); /// ``` #[stable(feature = "unicode_encode_char", since = "1.15.0")] - #[rustc_const_unstable(feature = "const_char_encode_utf8", issue = "130512")] + #[rustc_const_stable(feature = "const_char_encode_utf8", since = "CURRENT_RUSTC_VERSION")] #[inline] + #[cfg_attr(bootstrap, rustc_allow_const_fn_unstable(const_mut_refs))] pub const fn encode_utf8(self, dst: &mut [u8]) -> &mut str { // SAFETY: `char` is not a surrogate, so this is valid UTF-8. unsafe { from_utf8_unchecked_mut(encode_utf8_raw(self as u32, dst)) } @@ -1770,9 +1771,11 @@ const fn len_utf16(code: u32) -> usize { /// Panics if the buffer is not large enough. /// A buffer of length four is large enough to encode any `char`. #[unstable(feature = "char_internals", reason = "exposed only for libstd", issue = "none")] -#[rustc_const_unstable(feature = "const_char_encode_utf8", issue = "130512")] +#[rustc_const_stable(feature = "const_char_encode_utf8", since = "CURRENT_RUSTC_VERSION")] #[doc(hidden)] #[inline] +#[rustc_allow_const_fn_unstable(const_eval_select)] +#[cfg_attr(bootstrap, rustc_allow_const_fn_unstable(const_mut_refs))] pub const fn encode_utf8_raw(code: u32, dst: &mut [u8]) -> &mut [u8] { const fn panic_at_const(_code: u32, _len: usize, _dst_len: usize) { // Note that we cannot format in constant expressions. |