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Fix outdated comment about not needing to flush stderr.

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This commit is contained in:
Mara Bos 2020-10-10 20:13:03 +02:00
parent 5e6e1e33a1
commit 2bc5d44ca9
1 changed files with 3 additions and 7 deletions
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10
library/std/src/io/stdio.rs
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@ -756,13 +756,9 @@ pub struct StderrLock<'a> {
/// ``` /// ```
#[stable(feature = "rust1", since = "1.0.0")] #[stable(feature = "rust1", since = "1.0.0")]
pub fn stderr() -> Stderr { pub fn stderr() -> Stderr {
// Note that unlike `stdout()` we don't use `Lazy` here which registers a // Note that unlike `stdout()` we don't use `at_exit` here to register a
// destructor. Stderr is not buffered nor does the `stderr_raw` type consume // destructor. Stderr is not buffered , so there's no need to run a
// any owned resources, so there's no need to run any destructors at some // destructor for flushing the buffer
// point in the future.
//
// This has the added benefit of allowing `stderr` to be usable during
// process shutdown as well!
static INSTANCE: SyncOnceCell<ReentrantMutex<RefCell<StderrRaw>>> = SyncOnceCell::new(); static INSTANCE: SyncOnceCell<ReentrantMutex<RefCell<StderrRaw>>> = SyncOnceCell::new();
Stderr { Stderr {