diff options
Diffstat (limited to 'library/std')
| -rw-r--r-- | library/std/src/io/mod.rs | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/library/std/src/io/mod.rs b/library/std/src/io/mod.rs index 260200115c8..c8507a956ff 100644 --- a/library/std/src/io/mod.rs +++ b/library/std/src/io/mod.rs @@ -556,6 +556,10 @@ where /// therefore, using something that implements [`BufRead`], such as /// [`BufReader`], will be more efficient. /// +/// Repeated calls to the reader use the same cursor, so for example +/// calling `read_to_end` twice on a [`File`] will only return the file's +/// contents once. It's recommended to first call `rewind()` in that case. +/// /// # Examples /// /// [`File`]s implement `Read`: |