From 9835e2ae736235810b4ea1c162ca5e65c547e770 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 18 May 2024 04:49:50 +0200 Subject: Merging upstream version 1.71.1+dfsg1. Signed-off-by: Daniel Baumann --- library/alloc/src/vec/drain.rs | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) (limited to 'library/alloc/src/vec/drain.rs') diff --git a/library/alloc/src/vec/drain.rs b/library/alloc/src/vec/drain.rs index 2b1a787cc..f0b63759a 100644 --- a/library/alloc/src/vec/drain.rs +++ b/library/alloc/src/vec/drain.rs @@ -16,7 +16,7 @@ use super::Vec; /// /// ``` /// let mut v = vec![0, 1, 2]; -/// let iter: std::vec::Drain<_> = v.drain(..); +/// let iter: std::vec::Drain<'_, _> = v.drain(..); /// ``` #[stable(feature = "drain", since = "1.6.0")] pub struct Drain< @@ -112,9 +112,7 @@ impl<'a, T, A: Allocator> Drain<'a, T, A> { let unyielded_ptr = this.iter.as_slice().as_ptr(); // ZSTs have no identity, so we don't need to move them around. - let needs_move = mem::size_of::() != 0; - - if needs_move { + if !T::IS_ZST { let start_ptr = source_vec.as_mut_ptr().add(start); // memmove back unyielded elements @@ -197,7 +195,7 @@ impl Drop for Drain<'_, T, A> { } } - let iter = mem::replace(&mut self.iter, (&mut []).iter()); + let iter = mem::take(&mut self.iter); let drop_len = iter.len(); let mut vec = self.vec; -- cgit v1.2.3