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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:41 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:41 +0000 |
| commit | 4f9fe856a25ab29345b90e7725509e9ee38a37be (patch) | |
| tree | e4ffd8a9374cae7b21f7cbfb352927e0e074aff6 /library/alloc/src/macros.rs | |
| parent | Adding upstream version 1.68.2+dfsg1. (diff) | |
| download | rustc-upstream/1.69.0+dfsg1.tar.xz rustc-upstream/1.69.0+dfsg1.zip | |
Adding upstream version 1.69.0+dfsg1.upstream/1.69.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'library/alloc/src/macros.rs')
| -rw-r--r-- | library/alloc/src/macros.rs | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/library/alloc/src/macros.rs b/library/alloc/src/macros.rs index 5198bf297..4c6ae8f25 100644 --- a/library/alloc/src/macros.rs +++ b/library/alloc/src/macros.rs @@ -48,6 +48,8 @@ macro_rules! vec { ); ($($x:expr),+ $(,)?) => ( $crate::__rust_force_expr!(<[_]>::into_vec( + // This rustc_box is not required, but it produces a dramatic improvement in compile + // time when constructing arrays with many elements. #[rustc_box] $crate::boxed::Box::new([$($x),+]) )) |