diff options
Diffstat (limited to 'library/std/src/io')
| -rw-r--r-- | library/std/src/io/copy.rs | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/library/std/src/io/copy.rs b/library/std/src/io/copy.rs index d446af0dad3..1a10245e4a5 100644 --- a/library/std/src/io/copy.rs +++ b/library/std/src/io/copy.rs @@ -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 |