diff options
Diffstat (limited to 'library/std/src')
| -rw-r--r-- | library/std/src/io/impls.rs | 3 | ||||
| -rw-r--r-- | library/std/src/lib.rs | 1 | ||||
| -rw-r--r-- | library/std/src/prelude/v1.rs | 9 |
3 files changed, 12 insertions, 1 deletions
diff --git a/library/std/src/io/impls.rs b/library/std/src/io/impls.rs index 00bf8b9af73..9870cfc4c95 100644 --- a/library/std/src/io/impls.rs +++ b/library/std/src/io/impls.rs @@ -1,6 +1,7 @@ #[cfg(test)] mod tests; +use crate::alloc::Allocator; use crate::cmp; use crate::fmt; use crate::io::{ @@ -357,7 +358,7 @@ impl Write for &mut [u8] { /// Write is implemented for `Vec<u8>` by appending to the vector. /// The vector will grow as needed. #[stable(feature = "rust1", since = "1.0.0")] -impl Write for Vec<u8> { +impl<A: Allocator> Write for Vec<u8, A> { #[inline] fn write(&mut self, buf: &[u8]) -> io::Result<usize> { self.extend_from_slice(buf); diff --git a/library/std/src/lib.rs b/library/std/src/lib.rs index 72b86338d2c..acdf7550fe7 100644 --- a/library/std/src/lib.rs +++ b/library/std/src/lib.rs @@ -234,6 +234,7 @@ #![feature(box_syntax)] #![feature(c_variadic)] #![feature(cfg_accessible)] +#![cfg_attr(not(bootstrap), feature(cfg_eval))] #![feature(cfg_target_has_atomic)] #![feature(cfg_target_thread_local)] #![feature(char_error_internals)] diff --git a/library/std/src/prelude/v1.rs b/library/std/src/prelude/v1.rs index ef9aec54a4c..7181dc6e710 100644 --- a/library/std/src/prelude/v1.rs +++ b/library/std/src/prelude/v1.rs @@ -67,6 +67,15 @@ pub use core::prelude::v1::derive; #[doc(hidden)] pub use core::prelude::v1::cfg_accessible; +#[cfg(not(bootstrap))] +#[unstable( + feature = "cfg_eval", + issue = "82679", + reason = "`cfg_eval` is a recently implemented feature" +)] +#[doc(hidden)] +pub use core::prelude::v1::cfg_eval; + // The file so far is equivalent to src/libcore/prelude/v1.rs, // and below to src/liballoc/prelude.rs. // Those files are duplicated rather than using glob imports |