diff options
| -rw-r--r-- | library/std/src/io/readbuf.rs | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/library/std/src/io/readbuf.rs b/library/std/src/io/readbuf.rs index 034ddd8df9a..95044de2a09 100644 --- a/library/std/src/io/readbuf.rs +++ b/library/std/src/io/readbuf.rs @@ -306,8 +306,9 @@ impl<'a> BorrowedCursor<'a> { impl<'a> Write for BorrowedCursor<'a> { fn write(&mut self, buf: &[u8]) -> Result<usize> { - self.append(buf); - Ok(buf.len()) + let amt = cmp::min(buf.len(), self.capacity()); + self.append(&buf[..amt]); + Ok(amt) } #[inline] |