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| author | Mara Bos <m-ou.se@m-ou.se> | 2020-11-05 10:29:46 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-11-05 10:29:46 +0100 |
| commit | 43e1b58bccf7e62bcccfd1ce0bedc9dc65df3564 (patch) | |
| tree | 48fd373b32783ca019b40de23052cea3e0af9c5d /library/core/src/array | |
| parent | cbf74bc4ca3f9a3b17af672930c56fa25861b21e (diff) | |
| parent | 93fa023111ddfa1997e32b117a3fff01c03c4db1 (diff) | |
| download | rust-43e1b58bccf7e62bcccfd1ce0bedc9dc65df3564.tar.gz rust-43e1b58bccf7e62bcccfd1ce0bedc9dc65df3564.zip | |
Rollup merge of #78716 - est31:array_traits, r=Dylan-DPC
Array trait impl comment/doc fixes Two small doc/comment fixes regarding trait implementations on arrays.
Diffstat (limited to 'library/core/src/array')
| -rw-r--r-- | library/core/src/array/mod.rs | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/library/core/src/array/mod.rs b/library/core/src/array/mod.rs index 1d55a5ef659..123a191dd2c 100644 --- a/library/core/src/array/mod.rs +++ b/library/core/src/array/mod.rs @@ -353,8 +353,9 @@ impl<T: Ord, const N: usize> Ord for [T; N] { } } -// The Default impls cannot be generated using the array_impls! macro because -// they require array literals. +// The Default impls cannot be done with const generics because `[T; 0]` doesn't +// require Default to be implemented, and having different impl blocks for +// different numbers isn't supported yet. macro_rules! array_impl_default { {$n:expr, $t:ident $($ts:ident)*} => { |