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Warn that platform-specific behavior may change

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This commit is contained in:
Martin Pool 2022-03-29 19:43:40 -07:00
parent 93e9f5e966
commit cfee2ed8cb
2 changed files with 5 additions and 1 deletions
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2
library/std/src/fs.rs
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@ -1739,7 +1739,7 @@ pub fn rename<P: AsRef<Path>, Q: AsRef<Path>>(from: P, to: Q) -> io::Result<()>
///
/// On MacOS, this function corresponds to `fclonefileat` and `fcopyfile`.
///
/// Note that, this [may change in the future][changes].
/// Note that platform-specific behavior [may change in the future][changes].
///
/// [changes]: io#platform-specific-behavior
///

4
library/std/src/io/copy.rs
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@ -45,6 +45,10 @@ use crate::mem::MaybeUninit;
/// On Linux (including Android), this function uses `copy_file_range(2)`,
/// `sendfile(2)` or `splice(2)` syscalls to move data directly between file
/// descriptors if possible.
///
/// Note that platform-specific behavior [may change in the future][changes].
///
/// [changes]: crate::io#platform-specific-behavior
#[stable(feature = "rust1", since = "1.0.0")]
pub fn copy<R: ?Sized, W: ?Sized>(reader: &mut R, writer: &mut W) -> Result<u64>
where