diff options
| -rw-r--r-- | src/libstd/io/mod.rs | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/libstd/io/mod.rs b/src/libstd/io/mod.rs index 5060f368229..495c0c8d172 100644 --- a/src/libstd/io/mod.rs +++ b/src/libstd/io/mod.rs @@ -371,6 +371,14 @@ where loop { if g.len == g.buf.len() { unsafe { + // FIXME(danielhenrymantilla): #42788 + // + // - This creates a (mut) reference to a slice of + // _uninitialized integers_. + // + // - This having defined behavior is **unstable**: + // it could become UB in the future, + // at which point it would have be changed. g.buf.reserve(reservation_size(r)); let capacity = g.buf.capacity(); g.buf.set_len(capacity); |